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Last updated: 05/28/2026
USERX HUB LTDA, CNPJ: 55.155.104/0001-67
Address: Rua Gonçalves Ledo, nº 777, Rooms 1311 to 1317, Centro, Postal Code 60.110-261, Fortaleza/CE
Support email: support@userx.com.br
Privacy email: privacy@userx.com.br
These Terms and Conditions of Use (“Terms”) govern your access to and use of the UserX platform (“Platform”), offered by USERX HUB LTDA (“UserX,” “we,” or “our”). By registering, accessing, or using the Platform, you agree to comply with and be bound by these Terms. Please read them carefully.
1.1. The UserX Platform is a digital solution developed and operated by USERX HUB LTDA, registered under CNPJ No. 55.155.104/0001-67, with headquarters at Rua Gonçalves Ledo, No. 777, Rooms 1311 to 1317, Centro, Postal Code 60.110-261, Fortaleza/CE.
1.2. UserX is a Software as a Service (SaaS) platform designed for the end-to-end management of participant recruitment for market research, academic studies, UX research, and similar initiatives. The Platform centralizes the configuration of eligibility criteria, session scheduling, financial incentive control, and the custody of compliance documents, such as Informed Consent Forms (ICF).
1.3. The Platform operates under B2B (hiring companies) and B2C (independent researchers and individual users) models, enabling the management of multiple projects with real-time status tracking.
1.4. By using the Platform, you will have the opportunity to:
a. Configure research projects by defining methodology, criteria, and context documents;
b. Recruit participants through demographic, professional, and behavioral filters (Screener);
Schedule remote, in-person, or hybrid sessions, including video conferencing links;
d. Manage financial incentives, defining payment amounts and responsibilities;
e. Custody of compliance documents, such as Free and Informed Consent Forms (FICF);
f. Invite team members to collaborate on projects;
g. Access transcripts, reports, and files by participant;
h. Use the AI Research Assistant to organize and systematize research ideas, as per Section 12.
To make these Terms easier to read, here are some relevant concepts:
User: An individual or legal entity that registers and uses the UserX Platform to recruit participants and manage research projects.
b. Administrator (Admin): User with expanded permissions, responsible for managing the corporate account, team, and financial settings.
c. Participant: An individual recruited through the Platform to answer Screeners or participate in research sessions configured by the User.
d. Screener: an initial eligibility questionnaire used by the User to qualify Participants.
TCLE: Free and Informed Consent Form, a compliance document used to formalize the Participant's involvement in the research.
f. Credits: available balance in the User's account, used to cover recruitment and incentive payments, in B2B and B2C modalities.
Magic Link: an authentication method that uses a temporary link sent to the User's email, eliminating the need for a password.
h. AI Research Assistant: generative artificial intelligence-based chat functionality, available on the Platform to assist the User in organizing and systematizing research ideas, as detailed in Section 12.
i. Inputs: texts, commands, instructions, and other content typed by the User in the AI Search Assistant.
j. Outputs: Responses, texts, suggestions, and other content generated by the AI Research Assistant from the Inputs.
3.1. By clicking “I Accept,” registering, or using the Platform in any way, you declare that you have read, understood, and agree to these Terms and our Privacy Policy. If you do not agree with any provision of these Terms, you must not use the Platform.
3.2. These Terms may be updated from time to time. The most current version will always be available on the Platform. If there are significant changes, we will notify you at least 30 (thirty) days in advance by email or notification on the Platform itself. Your continued use of the Platform after the effective date of the changes will mean you accept the new Terms.
3.3. When registration is made on behalf of a legal entity, the person accepting these Terms declares to have sufficient powers to bind the company to the obligations set forth herein.
3.4. Certain specific functionalities of the Platform, such as the AI Search Assistant, require specific and additional acceptance by the User upon first access, due to their particularities. Refusal to accept such specific terms does not prevent the use of the Platform's other functionalities.
4.1. To use UserX, you must be over 18 (eighteen) years of age or legally represented, and have the civil capacity to enter into contracts. In the case of a legal entity, registration must be carried out by a duly authorized legal representative.
4.2. Registration requires you to provide accurate and complete information, including name, corporate or personal email, and company details (when applicable).
4.3. Authentication on the Platform can be done by email and password or via Magic Link, a temporary link sent to the registered email. You are responsible for keeping access to your email secure, as it is the central point of authentication.
4.4. You are solely responsible for the truthfulness, accuracy, and updating of the information provided in your registration. UserX is not responsible for incorrect or outdated data.
4.5. Your account is personal and non-transferable. You are responsible for maintaining the confidentiality of your credentials and for all activities performed under your account. Notify us immediately of any unauthorized use by emailing suporte@userx.com.br.
4.6. Creating more than one corporate account for the same legal entity is not permitted without prior authorization from UserX, except in cases where the company has multiple units, departments, or branches that justify independent operations.
5.1. The Platform allows the User (especially the Administrator) to invite team members to collaborate on projects by sending an email invitation.
5.2. The User is solely responsible for:
a. Decide which members of your team will have access to the Platform and to which projects;
b. Ensure that guest employees have a legitimate affiliation with the organization and are authorized to access project data;
c. Remove access when the employee is no longer part of the team or project;
d. Process guest employee emails in accordance with the LGPD.
5.3. The Administrator is responsible for all actions taken by their team members within the Platform, including those that incur costs, hire incentives, or share data.
5.4. UserX is not responsible for unauthorized access resulting from the User's own erroneous inclusion of members or the improper maintenance of access.
6.1. The User is fully responsible for the content and legal compliance of the projects they create on the Platform, including:
a. The title, description, and context documents attached to the project;
b. The eligibility criteria configured in the Screener (custom questions, demographic, professional, or behavioral filters);
c. The questions asked, ensuring they are not discriminatory, abusive, or contrary to applicable law;
d. Compliance with any ethical standards applicable to the research (e.g., requirements of Research Ethics Committees, when applicable).
6.2. UserX provides tools and resources for project configuration, but does not review, audit, or pre-approve the content of the research, unless expressly agreed upon in a specific contract.
7.1. The Platform allows the scheduling of sessions in remote, in-person, or hybrid modalities. For remote sessions, it is the sole responsibility of the User to manually enter virtual room links (Zoom, Google Meet, Microsoft Teams, or equivalent tool).
7.2. Links submitted must use the HTTPS protocol and be functional at the scheduled session time.
7.3. UserX is not responsible for:
a. Typos, incorrect or invalid links entered by the User;
b. Unavailability, failures, or technical problems with third-party videoconferencing tools;
c. Sessions that are frustrated, delayed, or compromised due to improper link configuration by the User;
d. The content of the recordings and anything discussed during the video conference session.
7.4. The User acknowledges that the Platform only hosts and distributes the provided link, and has no control over the virtual room itself.
8.1. The Platform offers a module for managing Free and Prior Informed Consent (FPIC) terms and other compliance documents, where the User will be able to:
a. Select a standard template provided by UserX, offered only as a general reference; or
b. Upload a custom model, developed by the User's or their client's legal team.
8.2. The User is solely responsible for the content, legal appropriateness, and legal validity of the consent documents used in their projects. The templates eventually provided by UserX are merely illustrative and do not replace specialized legal analysis.
8.3. UserX acts exclusively as the technical custodian of the stored documents, ensuring their integrity and availability for consultation and download, but is not responsible for their content.
8.4. It is the User's responsibility to ensure that the documents contain all information required by applicable legislation, including, when applicable, requirements of the General Data Protection Law (LGPD), National Health Council Resolution No. 466/2012, or other regulations pertinent to the type of research conducted.
9.1. The Platform allows the User to upload their own contact lists for the purpose of recruiting Participants.
9.2. When uploading contact databases, the User declares and guarantees that:
a. Has a valid legal basis (consent, legitimate interest, contract execution, or other provided for by LGPD) to process and share such personal data with UserX;
b. Data subjects were previously informed about the processing and, where required, consented to the purpose of recruitment for research;
c. The data was not obtained fraudulently, illegally, or in violation of third-party rights;
d. It will attend to any requests from data subjects (access, correction, deletion, objection) related to such databases.
9.3. For the purposes of the LGPD, the User is the Controller of the data in the lists they upload to the Platform, and UserX acts as the Operator, processing the data according to the User's instructions and within the limits of these Terms.
9.4. UserX may, at any time, request proof of the legal basis used and suspend the use of bases that show signs of irregularity.
10.1. The use of the Platform for recruitment and payment of incentives is dependent on the availability of Credits in the User's account, subject to the B2B and B2C modalities contracted.
10.2. Credits may be acquired directly from UserX, through the issuance of an invoice or specific contract, or according to the contracted plan.
10.3. Credits:
a. They do not constitute currency, securities, or financial credit;
b. They cannot be converted into cash, transferred to third parties, or sold;
c. May have an expiration date defined in the contract or applicable commercial terms;
d. In the event of account closure initiated by the User, any remaining balances will follow the rules set forth in the specific commercial agreement.
10.4. Financial incentives paid to Participants are defined by the User at the time of project configuration, and the payment responsibility can be assigned to the User itself or intermediated by UserX, according to the contracted model.
10.5. When UserX intermediates payment of incentives:
The corresponding value will be debited from the User's Credits balance.;
b. UserX will use third-party payment processors for settlement;
c. Payment will only be made upon confirmation of the Participant's full and satisfactory participation in the project, according to the rules configured by the User.
10.6. When the User chooses to pay incentives directly to Participants, UserX is not responsible for payment settlement, delays, failures, or any disputes arising from the direct relationship between the User and the Participant.
10.7. Any taxes, fees, or withholdings incidental to the payment of incentives are the sole responsibility of the User or Participant, as per applicable legislation.
11.1. The Platform automatically performs technical checks on the Participants' devices (audio, camera, and connection status) to reduce operational failures during sessions.
11.2. These checks generate diagnostic metadata (status “good” or “malfunctioning”) that is available to the User, and do not involve capturing images, audio, or content, unless expressly authorized by the Participant for the purposes of the research itself.
11.3. Participants' responses to Screeners are made available to the User for eligibility review. The User agrees to process such responses solely for the purpose of the corresponding project, in compliance with the LGPD.
12.1. Description of functionality. The Platform provides the User with a chat functionality, called “AI Research Assistant,” which uses generative artificial intelligence technology provided by a third party to assist in the organization, structuring, and systematization of research ideas based on User Inputs.
12.2. Auxiliary Nature. The AI Research Assistant is a support tool. The generated Outputs are exclusively suggestive and referential in nature, do not constitute professional, technical, legal, statistical, methodological, or ethical advice, and do not replace the User's critical analysis and qualified human review.
12.3. Technology Limitations. The User acknowledges and agrees that:
a. Outputs may contain inaccuracies, omissions, factual errors, outdated information, or content inappropriate for the research context, a phenomenon known as “hallucination,” inherent to generative artificial intelligence systems.;
b. The Outputs should not be used as the sole basis for decisions that impact Participants, third parties, or that involve legal, financial, ethical, health, or scientific research risks;
c. Different users may receive similar or identical outputs from similar inputs, given the statistical nature of the model;
d. UserX does not guarantee the accuracy, completeness, timeliness, originality, or suitability of the Outputs for any specific purpose.
12.4. Third-Party Provider. To enable the AI Research Assistant, UserX utilizes an artificial intelligence service provided by a third party. This means that User Inputs are transmitted and processed on that provider's infrastructure, including on servers located outside of Brazil. The rules for personal data processing related to this feature are detailed in the Privacy Policy.
12.5. Usage Restrictions. The User undertakes NOT to input into the AI Research Assistant:
a. Personal identifiable information of Participants, contact lists, candidates, or third parties, including full names, CPF, RG, email, phone number, address, financial or payment data;
b. Sensitive personal data, as defined in Article 5, item II of the LGPD (racial or ethnic origin, religious conviction, political opinion, health data, sexual life, genetic or biometric data), whether about oneself or about third parties;
c. Trade secrets, confidential information of end customers, third-party intellectual property under confidentiality, information covered by an NDA or confidentiality clauses;
d. Illegal, offensive, defamatory, discriminatory, violent, pornographic content, content that incites hatred, or content that violates third-party rights;
e. Content intended to generate disinformation, fraud, or manipulation;
f. Commands intended to bypass security filters, extract internal system instructions, or exploit vulnerabilities.
12.6. Responsibility for Inputs. The User is solely and exclusively responsible for the Inputs they submit to the AI Research Assistant. By using the functionality, you represent and warrant that you possess all necessary rights, authorizations, licenses, and legal bases concerning the content of the Inputs, and that your submission does not violate these Terms, the Privacy Policy, the LGPD, or any other applicable regulation.
12.7. Rights to Outputs. Subject to the limitations of intellectual property law applicable to AI-generated content, UserX assigns to the User all rights, titles, and interests in the specific Outputs generated in response to its Inputs, provided that:
This assignment does not extend to Outputs generated for other Users.;
b. There is no guarantee of uniqueness, originality, or absence of similarity with Outputs generated for third parties;
The User is responsible for verifying the originality, the absence of infringement of third-party rights, and the suitability of the Outputs before using them in any context.
12.8. Eventual publication or dissemination. If the User decides to publish, disseminate, or publicly use content derived from AI Research Assistant Outputs, it is recommended that:
a. Verify the accuracy of the information beforehand;
b. Indicate when relevant that the content was generated or assisted by artificial intelligence;
c. Adopt the precautions required by the legislation applicable to the type of publication.
12.9. Monitoring and Moderation. For purposes of legal compliance, fraud prevention, and protection of the Platform, UserX may technically monitor the use of the AI Search Assistant, apply automated filters, block suspicious Inputs, and suspend User access in case of violation of the rules in this Section.
12.10. Specific Acceptance. Initial access to the AI Search Assistant will require specific and prominent acceptance by the User, distinct from the general acceptance of these Terms. Refusal does not prevent the use of other Platform functionalities.
12.11. Availability. The AI Research Assistant is an additional feature and may be suspended, modified, or discontinued at any time, in whole or in part, due to a technical, commercial, or regulatory decision by UserX, or due to circumstances attributable to the third-party provider, without this constituting a breach of contract.
12.12. Specific Limitation of Liability. Notwithstanding anything in Section 19 to the contrary, UserX shall not be liable for:
Accuracy, completeness, timeliness, or suitability of the Outputs;
b. Decisions made by the User or by third parties based on the Outputs;
c. Unavailability, failures, changes, or discontinuation of the artificial intelligence service provided by a third party;
d. Any violation of third-party rights arising from the Inputs submitted by the User or the User's use of the Outputs.
13.1. The Platform offers integrations with third-party services, including, but not limited to:
a. WhatsApp, for sending notifications and communications to Participants;
b. Slack, for operational notifications to the User's team;
c. Videoconferencing tools (Zoom, Google Meet, Microsoft Teams, or others) by inserting external links;
d. Generative artificial intelligence provider, to enable the AI Research Assistant described in Section 12.
13.2. Integrations are offered as a convenience and are subject to the availability and terms of use of the respective third-party services.
13.3. UserX does not control, operate, or take responsibility for the functioning, unavailability, failures, alterations, or policy changes of integrated services. Any sending limits, additional fees, or restrictions imposed by such third parties are known to and the responsibility of the User.
13.4. UserX may, at any time and at its sole discretion, replace the artificial intelligence provider underlying the AI Research Assistant with another provider, while maintaining the overall level of functionality, without the need for individual prior notice to the User.
14.1. UserX, its brands (“UserX” and “USERX HUB”), its software, source code, layout, design, screens, flows, algorithms, structural databases, technical documentation, and other Platform elements are the exclusive property of USERX HUB LTDA or its licensors, and are protected by copyright laws, trademarks, patents, and other intellectual property regulations.
14.2. These Terms grant the User a limited, non-exclusive, non-transferable, revocable, and burdensome (where applicable) license to use the Platform solely for the purposes set forth in these Terms.
14.3. The content that the User inputs or generates on the Platform—including project descriptions, Screener questions, Informed Consent Form documents authored by them, transcripts, and final reports—remains the property of the User, or of legitimate third-party rights holders, as the case may be. Regarding the outputs of the AI Research Assistant, the specific rules in Section 12.7 apply.
14.4. The User grants UserX a non-exclusive, royalty-free license to host, process, display, and handle such content solely to enable the provision of services under these Terms, as well as for operational improvement, security, and legal compliance purposes.
14.5. The User is expressly prohibited from:
a. Copy, reproduce, modify, translate, or create derivative works of the Platform;
b. Reverse engineer, decompile, disassemble, or attempt to extract the source code of the Platform;
c. Market, sublicense, assign, or economically exploit the Platform without prior written authorization from UserX;
d. Remove or alter any intellectual property notices displayed on the Platform.
15.1. The User undertakes to:
Provide true, accurate, and complete information in your registration and keep it updated;
b. Ensure the accuracy of video conference links entered in session schedules;
c. Ensure the legal adequacy and content of the informed consent documents (TCLE) used in the projects;
d. Diligently manage team access, removing collaborators when necessary;
e. Process the Participants' data in compliance with LGPD and other applicable regulations;
To pay the contracted Credits and other amounts due punctually;
g. Do not use the Platform for illegal, unethical, or third-party rights-infringing purposes;
h. Fully comply with the restrictions on the use of the AI Research Assistant, especially the prohibitions regarding the insertion of personal, sensitive, or confidential data in the Inputs;
i. Critically review the outputs of the AI Research Assistant before using them in any professional, academic, or commercial context;
j. Immediately report any suspected misuse or security breach.
16.1. A UserX undertakes to:
Maintain the Platform in operation, making best efforts to ensure its availability, security, and performance;
b. Treat personal data according to our Privacy Policy and the LGPD;
c. Provide technical support via the email address suporte@userx.com.br during business hours, Monday to Friday, from 8 AM to 12 PM and 1 PM to 5 PM (Brasília time), except on holidays.;
d. Custodian user-submitted documents and files (transcripts, reports, signed informed consent forms) with integrity.
16.2. UserX is not responsible for:
a. Interruptions due to scheduled maintenance, User connection issues, third-party hardware/software failures, or force majeure events;
b. Content of projects, questions, documents, and materials uploaded by the User, including inputs submitted to the AI Research Assistant;
c. Decisions made by the User based on information obtained through the Platform, including outputs from the AI Research Assistant;
d. Accuracy, completeness, originality, or suitability for any purpose of the Outputs generated by the AI Research Assistant;
e. Failures, unavailability, or changes in integrated third-party services (WhatsApp, Slack, video conferencing tools, payment processors, artificial intelligence provider);
f. Disputes between User and Participants, between User and their collaborators, or between User and their end customers.
17.1. The User is strictly prohibited from:
a. Attempting to access restricted areas of the Platform or UserX's systems without authorization;
b. Reverse engineer, decompile, or attempt to derive the source code of the Platform;
c. Use bots, scripts, or automated means to access, manipulate, or interfere with the operation of the Platform, including the AI Research Assistant;
d. Insert illegal, offensive, defamatory, discriminatory content, or content that violates third-party rights into projects, Screeners, documents, or AI Research Assistant Inputs;
e. Uploading contact lists obtained irregularly, fraudulently, or without a legal basis;
f. Use the Platform for purposes unrelated to recruitment and research management, such as spam, phishing, or unauthorized direct marketing;
g. Sharing your access credentials with third parties or creating mechanisms to bypass the Magic Link system;
h. Inserting personally identifiable information, sensitive data, confidential information under seal, or content intended to bypass security mechanisms into the AI Research Assistant;
i. Using the AI Research Assistant to generate disinformation, illegal, fraudulent, discriminatory content, or content that infringes on the rights of third parties;
j. To engage in any act that may harm UserX, other Users, Participants, or the integrity of the Platform.
17.2. Violation of these rules may result in the immediate suspension or termination of the account, forfeiture of unused Credits (in case of a serious violation), and the pursuit of legal action.
18.1. By registering on UserX, the User agrees to receive communications related to the use of the Platform, including:
Operational notifications about projects, sessions, and Participants;
b. Notices regarding credit balance, billing, and charges;
c. Information about Platform updates, these Terms, and the Privacy Policy;
d. Support messages and important notices.
18.2. Communications may be sent by email, platform notifications, or, if the User has opted in, through integrated channels such as WhatsApp and Slack.
18.3. Marketing communications are optional and can be deactivated at any time in your account settings, provided that essential communications for the functioning of the service are respected.
19.1. UserX will use its best efforts to keep the Platform available 24 hours a day, 7 days a week. Any scheduled maintenance windows will be communicated in advance whenever possible.
19.2. To the maximum extent permitted by applicable law, UserX's liability to the User for any damages arising out of or related to the use of the Platform shall be limited to the amount actually paid by the User to UserX in the 12 (twelve) months preceding the event that gave rise to the liability. Such limitation shall apply even to damages related to the AI Research Assistant.
19.3. UserX is not liable for indirect damages, lost profits, loss of opportunity, data loss, or damage to reputation, except in cases of proven fraud or gross negligence.
20.1. UserX reserves the right to modify these Terms at any time, in its sole discretion.
20.2. For material changes (which significantly affect rights or obligations), the User will be notified at least 30 (thirty) days in advance by email or notification on the Platform.
20.3. Non-material changes will take effect immediately after the updated version is published on the Platform.
20.4. Continued use of the Platform after the changes take effect will signify acceptance of the new Terms. If the User does not agree with the modifications, they may cancel their account as per Section 21.
21.1. Cancellation by User: The User may request the cancellation of their account at any time, by sending an email request to suporte@userx.com.br or through the deletion functionality available in the account settings, subject to the provisions of any specific commercial agreement.
21.2. Cancellation Effects:
a. The User's and their team's personal data will be removed or anonymized within 15 (fifteen) business days, except in cases of legal retention;
b. Any unused credits will follow the rules of the specific commercial contract, and may or may not be subject to reimbursement;
c. Files and documents stored (transcripts, reports, ICFs) must be downloaded by the User before final deletion, under penalty of loss.
21.3. Suspension and termination by UserX: UserX may suspend or terminate the User's account:
a. With 15 (fifteen) days' notice, in case of breach of these Terms or the Privacy Policy;
b. Immediately, without prior notice, in cases of serious breach (fraud, bot usage, irregular contact base, security breach, illegal activity, misuse of the AI Research Assistant), without prejudice to applicable legal measures;
c. Due to financial default, subject to applicable contractual deadlines.
22.1. UserX values its good relationship with its Users. In case of any questions, complaints, or problems, the User must first contact the support channel (suporte@userx.com.br). Our goal is to resolve the issue in a friendly and efficient manner.
22.2. If the issue is not resolved by direct support, the parties agree to seek a resolution through out-of-court means before initiating any legal proceedings.
23.1. Severability: If any provision of these Terms is found to be invalid or unenforceable, the remaining provisions will remain in full force and effect.
23.2. Waiver: UserX's failure to exercise or enforce any right or provision of these Terms will not constitute a waiver.
23.3. Assignment: The User may not assign its rights and obligations arising from these Terms without prior written authorization from UserX. UserX may assign its rights and obligations in the event of a corporate reorganization, merger, acquisition, or sale of assets.
23.4. Entire Agreement: These Terms, together with the Privacy Policy and any specific commercial agreement, constitute the entire agreement between the parties regarding the use of the Platform.
24.1. These Terms shall be governed by and construed in accordance with the laws of the Federative Republic of Brazil.
24.2. The jurisdiction of the Judicial District of Fortaleza, in the State of Ceará, is hereby elected to resolve any doubts or disputes arising from these Terms, with the parties waiving any other, however privileged it may be.
Thank you for choosing UserX!
USERX HUB LTDA, CNPJ: 55.155.104/0001-67
Address: Rua Gonçalves Ledo, nº 777, Rooms 1311 to 1317, Centro, Postal Code 60.110-261, Fortaleza/CE
Support email: support@userx.com.br
Privacy email: privacy@userx.com.br
