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Terms of Use for Notone

Last Updated: 29 May 2026

Agreement to Terms

By downloading, installing, or using the Notone app (the "App"), you agree to be bound by these Terms of Use ("Terms"). If you do not agree to these Terms, please do not use the App.

Description of Service

Notone is a personal knowledge management app that helps you capture notes and connect them like neurons. The App provides the following features:

  • Create, edit, organise, and delete notes with types, tags, and lifecycle states
  • Connect notes with synapse links and explore them through associative recall
  • Semantic search powered by AI embeddings
  • An AI assistant that can answer questions about your notes
  • Reminders for time-based notes, delivered via push notifications
  • Synchronisation of your notes across your devices via our cloud backend
Important: Notone relies on a cloud backend and on third-party AI services to provide its core features. Some features may require an internet connection and may be offered as part of a paid subscription.

Accounts

You may use Notone anonymously or sign in with email, Google, or Apple. You are responsible for:

  • Maintaining the confidentiality of your sign-in credentials
  • All activity that occurs under your account
  • Providing accurate information if you choose to register

If you use the App anonymously and lose access to your device or sign-in information, recovery of your data may not be possible. We recommend signing in to enable account recovery.

Licence

Grant of Licence

Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, revocable licence to:

  • Download and install the App on Apple devices you own or control
  • Use the App for your personal, non-commercial purposes

Restrictions

You agree NOT to:

  • Modify, reverse engineer, decompile, or disassemble the App
  • Remove any copyright or proprietary notices from the App
  • Use the App for any illegal or unauthorised purpose
  • Attempt to gain unauthorised access to the App, our backend, other users' data, or any connected systems
  • Interfere with, overload, or disrupt the App or its infrastructure, including by excessive automated requests
  • Sell, rent, lease, or sublicense the App
  • Store or transmit content that is unlawful, infringing, or that violates the rights of others

User Content

The notes, tags, links, and other content you create within the App are your content. You retain full ownership of your content. Notone does not claim any ownership rights over the content you create.

You grant us a limited licence to store, process, and transmit your content solely to operate and provide the App's features. This includes sending the text of your notes to AI service providers to generate embeddings and to power the AI assistant, as described in our Privacy Policy. We do not use your content to train AI models.

You are solely responsible for the content you create and for ensuring that you have the right to store and process it through the App.

Data and Privacy

Your use of the App is also governed by our Privacy Policy, which is incorporated into these Terms by reference. Key points:

  • Your notes are stored on our cloud backend (Cloudflare)
  • The text of your notes is sent to OpenAI to generate embeddings for search
  • The AI assistant processes your messages and relevant notes when you use it
  • We use Firebase for authentication, analytics, push notifications, and app attestation
  • We do not sell your data
  • For full details, see our Privacy Policy

Subscriptions and Purchases

Billing

Notone may offer paid subscriptions or in-app purchases through the App Store. Payment is charged to your Apple ID account at confirmation of purchase.

Auto-Renewal

  • Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period
  • Your Apple ID account is charged for renewal within 24 hours before the end of the current period
  • You can manage and cancel subscriptions in your Apple ID account settings
Important: Refunds are handled by Apple in accordance with App Store policies. We do not directly process refunds for purchases made through the App Store.

Intellectual Property

Our Content

The App and its original content, features, design, and functionality are owned by the developer and are protected by international copyright, trademark, and other intellectual property laws.

Feedback

If you provide us with any feedback, suggestions, or ideas about the App, you grant us the right to use such feedback without any obligation to you.

Disclaimer of Warranties

THE APP IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO:

  • Warranties of merchantability or fitness for a particular purpose
  • Uninterrupted, error-free, or secure operation
  • Accuracy, relevance, or reliability of AI-generated search results or assistant responses
  • Accuracy or completeness of any content processed by the App
  • Reliability of reminder notifications
  • Compatibility with all iOS versions or future Apple updates
Important: AI features can produce inaccurate or incomplete results. Do not rely on AI-generated output as a sole source of truth for important decisions. Reminder delivery depends on iOS notification permissions and system settings.

Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IN NO EVENT SHALL THE DEVELOPER, ITS AFFILIATES, OR LICENSORS BE LIABLE FOR:

  • Any indirect, incidental, special, consequential, or punitive damages
  • Loss of data, including notes, due to service interruption, device failure, OS updates, or accidental deletion
  • Damages arising from missed reminders or notification failures
  • Damages arising from reliance on AI-generated output
  • Any damages arising from your use or inability to use the App

TO THE MAXIMUM EXTENT PERMITTED BY LAW, OUR TOTAL LIABILITY TO YOU FOR ANY CLAIM SHALL NOT EXCEED THE AMOUNT YOU PAID FOR THE APP IN THE TWELVE MONTHS PRECEDING THE CLAIM, OR USD 50, WHICHEVER IS GREATER.

Indemnification

You agree to defend, indemnify, and hold harmless the developer and its affiliates from any claims, damages, obligations, losses, liabilities, costs, or expenses (including solicitor's fees) arising from:

  • Your use of the App in violation of these Terms
  • Your violation of any applicable laws or regulations
  • Your violation of any third-party rights
  • The content you store or process through the App

Changes to the App

We reserve the right to:

  • Modify, update, or discontinue the App or any feature at any time
  • Change the AI providers used to deliver features
  • Update the App for compatibility with new iOS or Apple hardware versions

We are not liable to you for any modification, suspension, or discontinuance of the App or any feature.

Changes to Terms

We may revise these Terms from time to time. We will notify you of changes by:

  • App Store update notes
  • Updating the "Last Updated" date on this page

Your continued use of the App after changes become effective constitutes acceptance of the revised Terms.

Termination

By You

You may stop using the App at any time by deleting it from your device. You may request deletion of your account and server-side data by contacting us at support@sbryu.com.

By Us

We may suspend or terminate your access to the App immediately, without prior notice or liability, if you breach these Terms, misuse the service, or if we are required to do so by law.

Effect of Termination

Upon termination, your licence to use the App will immediately cease. We may delete your server-side data after termination, subject to any retention required by law.

Dispute Resolution

Governing Law

These Terms shall be governed by and construed in accordance with the laws of Japan, without regard to conflict of law principles.

Jurisdiction

The Tokyo District Court shall have exclusive jurisdiction as the court of first instance for any dispute arising out of or relating to these Terms or the App, except where mandatory consumer protection laws of your country of residence provide otherwise.

Informal Resolution

Before filing a claim, you agree to contact us and attempt to resolve the dispute informally by emailing support@sbryu.com.

Apple-Specific Terms

App Store Requirements

  • These Terms are between you and the developer, not Apple
  • Apple has no responsibility for the App or its content
  • Apple has no warranty obligation for the App
  • Apple is not responsible for maintenance or support services for the App
  • Apple is not liable for any claims related to the App, including product liability, consumer protection, or intellectual property claims

Third-Party Beneficiary

Apple and its subsidiaries are third-party beneficiaries of these Terms and, upon your acceptance, Apple will have the right to enforce these Terms against you.

Severability

If any provision of these Terms is found to be unenforceable or invalid, that provision will be limited or eliminated to the minimum extent necessary, and the remaining provisions will remain in full force and effect.

Waiver

Our failure to enforce any right or provision of these Terms will not be considered a waiver of those rights.

Entire Agreement

These Terms, together with our Privacy Policy, constitute the entire agreement between you and the developer regarding the App and supersede all prior agreements.

Contact Information

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

  • Email: support@sbryu.com

Acknowledgment

BY USING NOTONE, YOU ACKNOWLEDGE THAT YOU HAVE READ THESE TERMS OF USE, UNDERSTAND THEM, AND AGREE TO BE BOUND BY THEM.