Terms of Service
Last Updated: January 18, 2026
PLEASE READ THESE TERMS CAREFULLY: These Terms include important provisions such as a binding arbitration clause, class action waiver, limitations of liability, and disclaimers. By using this App, you agree to resolve disputes through binding individual arbitration and waive your right to participate in class actions.
1. Acceptance of Terms
By downloading, installing, accessing, or using Tahutu Assistant ("the App"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not use the App.
You must be at least 13 years old to use this App. If you are under 18, you represent that you have your parent's or guardian's permission to use the App and that they have agreed to these Terms on your behalf.
2. Description of Service
Tahutu Assistant is a mobile application that provides:
- Voice-based interaction with AI language models via OpenRouter (including Claude, Gemini, GPT-4o, DeepSeek, Llama, Qwen, and others)
- Speech recognition (on-device via Sherpa-ONNX, or cloud-based via Deepgram/Soniox)
- Text-to-speech synthesis with Vietnamese and English support
- English learning features including practice scenarios and conversation exercises
- Vocabulary management with spaced repetition system (SRS)
- Notes system for saving words, phrases, grammar, and cultural insights
- Optional account-based proxy mode for simplified API access
2.1 Beta and Experimental Features
The App may include beta, preview, or experimental features that are still under development.
- Beta features are provided "as is" without any warranties
- Beta features may be modified, suspended, or discontinued at any time without notice
- We do not guarantee the accuracy, reliability, or availability of beta features
- You use beta features at your own risk
- Features marked as "beta" or "experimental" should not be relied upon for critical purposes
2.2 Service Availability
We do NOT guarantee any level of service availability or uptime. The App:
- May be unavailable due to maintenance, updates, or technical issues
- May experience interruptions due to third-party service outages
- May be modified, suspended, or discontinued at any time without prior notice
- Is not designed for mission-critical or emergency purposes
3. User Requirements
3.1 Age Requirement
The App is intended for users aged 13 and older. Users under 18 should have parental consent before using the App. Because the App uses AI language models that may occasionally generate unexpected content, parental guidance is recommended for younger users.
3.2 Device Requirements
- iOS 15.0 or later, or Android API 24 or later
- Microphone access
- Internet connection (for AI features)
3.3 API Access
To use AI features, you can either:
- Direct Mode: Provide your own API keys from third-party providers
- Proxy Mode: Sign in with Apple or Google to use our proxy service
When using Direct Mode, you are responsible for:
- Obtaining valid API keys from these providers
- Complying with the terms of service of these providers
- Any charges incurred from using these APIs
- Keeping your API keys secure
When using Proxy Mode:
- Usage may be subject to rate limits
- Service availability depends on our infrastructure
- We reserve the right to modify or discontinue proxy access
4. Acceptable Use
You agree NOT to use the App to:
4.1 Prohibited Content
- Generate, store, or transmit illegal content
- Create content that violates the rights of others
- Produce content that is harmful, abusive, harassing, or discriminatory
- Generate content that promotes violence or illegal activities
4.2 Prohibited Activities
- Attempt to circumvent security measures
- Reverse engineer, decompile, or disassemble the App
- Use the App for any commercial purpose without authorization
- Interfere with or disrupt the App's functionality
- Violate any applicable laws or regulations
4.3 Third-Party Terms
When using AI services through the App, you must also comply with the terms of service of each respective third-party provider.
5. AI-Generated Content Disclaimer
CRITICAL WARNING: Responses generated by the AI are provided "AS IS" WITHOUT ANY WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED.
5.1 No Warranties
We make NO representations or warranties regarding AI-generated content, including but not limited to:
- Accuracy, completeness, or reliability of information
- Suitability for any particular purpose
- Timeliness or currency of information
- Freedom from errors, bugs, or harmful content
- Non-infringement of third-party rights
5.2 Known Limitations
AI language models have inherent limitations that you must understand:
- Hallucinations: AI may generate content that appears factual but is entirely fabricated
- Outdated information: AI knowledge has a training cutoff date and may not reflect current events
- Bias: AI may reflect biases present in its training data
- Context limitations: AI may misunderstand context or nuance
- Inconsistency: AI may provide different answers to the same question
- Inappropriate content: Despite safeguards, AI may occasionally generate offensive or harmful content
5.3 Prohibited Reliance
You expressly acknowledge and agree that you shall NOT rely on AI responses for:
- Medical diagnosis, treatment, or health advice
- Legal advice or legal document preparation
- Financial, investment, or tax advice
- Emergency services or crisis intervention
- Professional advice in any licensed field
- Decisions that could result in physical harm, financial loss, or legal liability
- Academic submissions where AI use is prohibited
5.4 User Responsibility
You are solely responsible for:
- Verifying the accuracy of any AI-generated information before acting on it
- Any decisions you make based on AI responses
- Any actions you take as a result of using the App
- Consulting qualified professionals for advice in specialized fields
AI responses do not represent our views, opinions, or endorsements.
6. Intellectual Property
6.1 App Ownership
The App, including its design, features, and content, is owned by us and protected by intellectual property laws.
6.2 Third-Party Components
The App uses various open-source components, each subject to their respective licenses.
6.3 Your Content
You retain ownership of any content you create using the App. By using the App, you grant us no rights to your content as we do not collect or store it.
7. Privacy
Your privacy is important to us. Please review our Privacy Policy for information on how we collect, use, and protect your data.
8. Limitation of Liability
PLEASE READ THIS SECTION CAREFULLY. IT LIMITS OUR LIABILITY TO YOU.
8.1 Disclaimer of Warranties
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW:
- THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED
- WE EXPRESSLY DISCLAIM ALL WARRANTIES, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT
- WE DO NOT WARRANT THAT THE APP WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, OR FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS
- WE DO NOT WARRANT THE ACCURACY, RELIABILITY, COMPLETENESS, OR TIMELINESS OF ANY CONTENT
8.2 Limitation of Damages
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL WE BE LIABLE FOR:
- Any indirect, incidental, special, consequential, exemplary, or punitive damages
- Any loss of profits, revenue, data, goodwill, or other intangible losses
- Any damages arising from your use of or inability to use the App
- Any damages arising from unauthorized access to or alteration of your data
- Any damages arising from third-party conduct or content
- Any damages arising from AI-generated content or your reliance thereon
- Any charges incurred from third-party API usage
- Any damages exceeding, in aggregate, the greater of (a) the amount you paid for the App in the 12 months preceding the claim, or (b) one hundred US dollars ($100)
8.3 Basis of the Bargain
You acknowledge that we have offered the App and entered into these Terms in reliance upon the disclaimers and limitations of liability set forth herein, that the same reflect a reasonable and fair allocation of risk between you and us, and that the same form an essential basis of the bargain between you and us. We would not be able to provide the App to you on an economically reasonable basis without these limitations.
8.4 Jurisdictional Limitations
Some jurisdictions do not allow the exclusion of certain warranties or the limitation of liability for certain damages. If these laws apply to you, some or all of the above disclaimers, exclusions, or limitations may not apply to you, and you may have additional rights.
9. Third-Party Services
The App integrates with various third-party services for AI and speech processing capabilities. Your use of these services through our App is subject to their respective terms. We are not responsible for:
- The content of AI responses
- Service availability or interruptions
- Changes to third-party terms or pricing
- Data handling by third parties
10. Indemnification
You agree to indemnify, defend, and hold harmless us and our affiliates from any claims, damages, losses, or expenses arising from:
- Your use of the App
- Your violation of these Terms
- Your violation of any third-party rights
- Content you create using the App
11. Modifications
11.1 To the App
We reserve the right to modify, suspend, or discontinue the App at any time without notice.
11.2 To These Terms
We may update these Terms at any time. Changes will be indicated by updating the "Last Updated" date. Continued use after changes constitutes acceptance.
12. Termination
12.1 By You
You may stop using the App and uninstall it at any time.
12.2 By Us
We may terminate or suspend your access to the App immediately, without prior notice, for violation of these Terms or any other reason at our discretion.
12.3 Effect of Termination
Upon termination, your right to use the App ceases. Sections on liability, indemnification, and disputes survive termination.
13. Governing Law
These Terms shall be governed by and construed in accordance with the laws of Vietnam, without regard to conflict of law provisions.
14. Dispute Resolution
IMPORTANT: This section contains a binding arbitration clause and class action waiver that affect your legal rights.
14.1 Informal Resolution
Before initiating any formal dispute resolution proceeding, you agree to first contact us at the email below and attempt to resolve the dispute informally for at least 30 days. Most disputes can be resolved this way.
14.2 Binding Arbitration
If we cannot resolve a dispute informally, you and we agree to resolve any disputes through final and binding arbitration, except as set forth below. This means that you waive your right to have such disputes decided by a judge or jury.
- Arbitration shall be conducted under the rules of the Vietnam International Arbitration Centre (VIAC)
- The arbitration shall be held in Ho Chi Minh City, Vietnam, or another mutually agreed location
- The arbitrator's decision shall be final and binding
- Judgment on the arbitration award may be entered in any court of competent jurisdiction
14.3 Class Action Waiver
YOU AND WE AGREE THAT EACH MAY BRING CLAIMS AGAINST THE OTHER ONLY IN YOUR OR OUR INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF OR CLASS MEMBER IN ANY PURPORTED CLASS, CONSOLIDATED, OR REPRESENTATIVE PROCEEDING. Unless both you and we agree otherwise, the arbitrator may not consolidate more than one person's claims and may not otherwise preside over any form of a representative or class proceeding.
14.4 Exceptions to Arbitration
Notwithstanding the above, either party may:
- Seek injunctive or other equitable relief in any court of competent jurisdiction to prevent the actual or threatened infringement of intellectual property rights
- Bring claims in small claims court if the claims qualify
14.5 Opt-Out
You may opt out of the arbitration and class action waiver provisions by sending written notice to our email address within 30 days of first accepting these Terms. If you opt out, you and we will resolve disputes in the courts of Vietnam.
15. General Provisions
15.1 Entire Agreement
These Terms, together with the Privacy Policy, constitute the entire agreement between you and us regarding the App.
15.2 Severability
If any provision of these Terms is found unenforceable, the remaining provisions remain in effect.
15.3 Waiver
Failure to enforce any right under these Terms does not constitute a waiver of that right.
15.4 Assignment
You may not assign or transfer your rights under these Terms without our prior written consent. We may assign our rights and obligations under these Terms without restriction and without notice to you.
15.5 Force Majeure
We shall not be liable for any failure or delay in performing our obligations under these Terms where such failure or delay results from circumstances beyond our reasonable control, including but not limited to:
- Natural disasters, acts of God, or severe weather events
- War, terrorism, civil unrest, or government actions
- Epidemics, pandemics, or public health emergencies
- Cyber attacks, hacking, or malicious software
- Failure of third-party services, including AI providers and cloud infrastructure
- Power outages, internet disruptions, or telecommunications failures
- Strikes, labor disputes, or supply chain disruptions
15.6 No Third-Party Beneficiaries
These Terms do not create any third-party beneficiary rights in any individual or entity that is not a party to these Terms.
15.7 Export Compliance
You agree to comply with all applicable export control laws and regulations. You may not use or export the App in violation of any applicable laws.
15.8 Electronic Communications
By using the App, you consent to receive electronic communications from us. You agree that any notices, agreements, disclosures, or other communications we send to you electronically satisfy any legal requirement that such communications be in writing.
16. Contact Information
For questions about these Terms:
- Email: thucth.qt+aicraft@gmail.com
17. Acknowledgment
BY USING TAHUTU ASSISTANT, YOU ACKNOWLEDGE THAT YOU HAVE READ, UNDERSTOOD, AND AGREE TO BE BOUND BY THESE TERMS OF SERVICE.