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Terms of Service

Effective Date: February 11, 2026 Last Updated: February 23, 2026

These Terms of Service ("Terms") govern your access to and use of the Envelope website and service located at https://envelope-beryl.vercel.app/ (the "Service"), operated by Nesoi Group LLC ("we," "us," or "our"). Envelope helps users turn web apps into installable Progressive Web Apps (PWAs), build apps from scratch using AI, and extend apps with built-in modules for push notifications, authentication, data storage, and more. By accessing or using the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.

1. Description of Service

Envelope provides three core capabilities:

  • PWA Wrapping — Turn any web app into a Progressive Web App (PWA) by generating a shareable install link. Users customize the app name, icon, and theme color, then share a link that enables anyone to install the PWA to their device — no app store required.
  • AI App Builder — Build apps from natural language prompts via a chat-based interface. The AI generates code, which users can preview, iterate on, and publish directly through Envelope.
  • Module System — Extend apps with built-in capabilities including push notifications, a real-time voice assistant, an AI chatbot, web search (Perplexity AI), key-value data storage, image upload and AI image generation, geolocation, and user authentication (Envelope Auth). Creators enable modules per app through the dashboard.

2. Eligibility

You must be at least 13 years old to use the Service. By using the Service, you represent that you meet this requirement. If you are using the Service on behalf of an organization, you represent that you have authority to bind that organization to these Terms.

3. Account Registration

To access certain features, you must create an account. You agree to provide accurate, current, and complete information and to keep your account credentials secure. You are responsible for all activity under your account. Notify us immediately if you suspect unauthorized access.

4. Acceptable Use

You agree not to use the Service to:

  • Violate any applicable law, regulation, or third-party rights
  • Create install links for web apps you do not own or have permission to distribute
  • Distribute malware, phishing pages, or any harmful or deceptive content
  • Impersonate any person or entity, or misrepresent your affiliation
  • Interfere with the operation of the Service or attempt to gain unauthorized access to our systems
  • Use the Service for spam, fraud, or any abusive purpose
  • Scrape, crawl, or use automated means to access the Service without permission

We reserve the right to suspend or terminate accounts that violate these Terms. For detailed usage guidelines, see our Acceptable Use Policy.

5. User Content

"User Content" refers to any data you submit through the Service, including but not limited to:

  • App URLs, names, icons, descriptions, and theme colors
  • Chat messages and prompts submitted to the AI builder
  • Custom system prompts configured for voice, chatbot, and other modules
  • Data stored in the key-value (KV) store
  • Push notification content sent through the Service
  • Images uploaded or generated through the Images module
  • Any other data submitted through enabled modules

You retain ownership of your User Content. By submitting User Content, you grant us a non-exclusive, worldwide, royalty-free license to use, reproduce, modify, host, display, and distribute that content solely to operate and provide the Service. This license terminates when you delete your User Content from the Service or upon the deletion of your account, except to the extent that copies are retained as necessary to comply with legal obligations or as otherwise described in our Privacy Policy.

You represent and warrant that:

  • You own or have the necessary rights to the User Content you submit
  • Your User Content does not infringe any third-party intellectual property or other rights
  • Your User Content complies with these Terms and all applicable laws

6. AI-Generated Content

The Service uses third-party AI models to generate code, images, and other content on your behalf. You should be aware of the following:

  • Ownership — We do not claim ownership of AI-generated content produced through your use of the Service. You are free to use, modify, and distribute AI-generated code and images, subject to any applicable third-party terms.
  • No warranty of originality — AI-generated content may resemble existing works or contain patterns common in training data. We make no representations regarding the originality, intellectual property status, or legal clearance of AI-generated content.
  • Accuracy and safety — AI-generated code and content may contain errors, security vulnerabilities, or inaccuracies. You are solely responsible for reviewing, testing, and validating any AI-generated content before using it in production or distributing it to others.
  • Acceptable use — AI-generated content is subject to our Acceptable Use Policy. You may not use the AI builder or AI modules to generate content that violates these Terms or applicable law.
  • No indemnification for AI-generated content — We do not indemnify you against claims arising from AI-generated content produced through the Service. If a third party alleges that AI-generated content you published or distributed infringes their rights, you are solely responsible for responding to and resolving the claim. See our Copyright Policy for more details.

7. Intellectual Property

The Service, including its design, features, code, and branding (excluding User Content and AI-Generated Content), is owned by Nesoi Group LLC and protected by intellectual property laws. You may not copy, modify, distribute, or create derivative works based on the Service without our prior written consent.

8. Third-Party Services and Links

The Service integrates with the following third-party providers:

  • Supabase — database, authentication, and file storage
  • Vercel — hosting and deployment
  • PostHog — product analytics
  • Google (Gemini) — AI code generation, AI chatbot, and AI image generation
  • OpenAI — real-time voice assistant
  • Perplexity AI — web search module
  • Upstash — rate limiting and scheduled tasks

Your use of these third-party services is subject to their respective terms and privacy policies. We are not responsible for the content, policies, or practices of any third party. The Service may also link to other third-party websites or services; we are not responsible for those either.

9. Availability and Modifications

We strive to keep the Service available but do not guarantee uninterrupted access. We may modify, suspend, or discontinue the Service (or any part of it) at any time, with or without notice. We are not liable for any modification, suspension, or discontinuation.

10. Fees and Usage

The Service is currently offered free of charge. We reserve the right to introduce paid features or subscription plans in the future. If we do, we will provide notice and give you the option to continue or discontinue use.

Rate Limits

The Service applies rate limits to API and module usage to ensure fair access for all users. We may adjust these limits at any time. Exceeding rate limits may result in temporary throttling of requests.

Usage Tracking

We track API usage metrics (such as token counts and model usage) for internal cost monitoring and service operations. This data is used to maintain and improve the Service and is not shared with third parties. See our Privacy Policy for more details on data collection.

11. Termination

You may stop using the Service at any time. We may suspend or terminate your access if you violate these Terms or for any other reason at our discretion. Upon termination, your right to use the Service ceases immediately.

Following termination or account closure, you may request a copy of your account data by contacting us within 30 days. We will delete your account and associated data within 30 days of termination or account closure, unless retention is required to comply with legal obligations, resolve disputes, or enforce our agreements. Any data retained for these purposes will be deleted once the retention purpose has been fulfilled.

12. Disclaimer of Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE WILL BE ERROR-FREE, SECURE, OR UNINTERRUPTED. WE DO NOT WARRANT THAT AI-GENERATED CONTENT WILL BE ACCURATE, COMPLETE, ORIGINAL, OR FREE OF DEFECTS.

13. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY LAW, NESOI GROUP LLC AND ITS OFFICERS, DIRECTORS, EMPLOYEES, AND AGENTS SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, DATA, OR GOODWILL, ARISING OUT OF OR RELATED TO YOUR USE OF THE SERVICE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

OUR TOTAL LIABILITY FOR ANY CLAIM ARISING FROM THESE TERMS OR THE SERVICE SHALL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID US IN THE 12 MONTHS PRECEDING THE CLAIM, OR (B) $100 USD.

14. Indemnification

You agree to indemnify, defend, and hold harmless Nesoi Group LLC and its officers, directors, employees, and agents (collectively, the "Indemnified Parties") from and against any claims, damages, losses, liabilities, and expenses (including reasonable attorneys' fees) arising from or related to: (a) your use of the Service; (b) your User Content; (c) your use or distribution of AI-Generated Content; (d) your violation of these Terms; or (e) your violation of any applicable law or third-party rights.

You agree to: (i) promptly notify us in writing of any claim for which indemnification may be sought; (ii) provide reasonable cooperation in the defense of such claim at your own expense; and (iii) allow us to assume sole control of the defense and settlement of any claim, provided that we will not settle any claim that imposes obligations on you without your prior written consent. Our failure to provide timely notice of a claim shall not relieve you of your indemnification obligations except to the extent that such failure materially prejudices your ability to defend the claim.

15. Governing Law and Disputes

These Terms are governed by the laws of the State of New York, without regard to conflict of law principles. Any disputes arising from these Terms or the Service shall be resolved exclusively in the state or federal courts located in New York County, New York, and you consent to personal jurisdiction in those courts.

16. Changes to These Terms

We may update these Terms from time to time. When we do, we will revise the "Last Updated" date above. For material changes — such as modifications to fees, data practices, or limitation of liability — we will provide at least 30 days' advance notice via email or a prominent notification within the Service before the changes take effect. Your continued use of the Service after changes take effect constitutes acceptance of the updated Terms. If you do not agree with the updated Terms, you should stop using the Service before the changes take effect. We encourage you to review these Terms periodically.

17. Severability

If any provision of these Terms is found unenforceable, the remaining provisions will continue in full force and effect.

18. No Waiver

Our failure to enforce any provision of these Terms shall not constitute a waiver of that provision or any other provision. Any waiver must be in writing and signed by Nesoi Group LLC to be effective.

19. Assignment

You may not assign or transfer these Terms or any rights or obligations under these Terms without our prior written consent. We may assign these Terms without restriction, including in connection with a merger, acquisition, or sale of all or substantially all of our assets. Any attempted assignment in violation of this section is void. These Terms are binding on and inure to the benefit of each party's successors and permitted assigns.

20. Entire Agreement

These Terms, together with our Privacy Policy, Acceptable Use Policy, and Copyright Policy, constitute the entire agreement between you and Nesoi Group LLC regarding the Service and supersede any prior agreements.

21. Contact Us

If you have questions about these Terms, please contact us at:

Nesoi Group LLC Email: support@envelope.build Website: https://envelope.build/