Nana

Terms and Conditions

Last Updated: 22 September 2026 Effective Date: 6 September 2026

1. Acceptance of Terms

By downloading, installing, or using Nana ("the App"), you agree to be bound by these Terms and Conditions ("Terms"). If you do not agree to these Terms, do not use the App.

These Terms constitute a legal agreement between you and Cosmos One ("we", "us", or "our"). We reserve the right to modify these Terms at any time. Continued use of the App after changes constitutes acceptance of the modified Terms.

You must be at least 13 years of age to use Nana.

In Nana versions that include regional age checks, Google Play may provide your age band and applicable app-change approval status. For ages 13–17, Nana relies on Play-managed download approval where applicable and restricts access when a relevant app-change approval is outstanding or refused. Nana does not operate a separate parent-registration service. If Google does not share age information, Nana may ask you to declare your age group; only a self-declared adult can proceed through that fallback. You must answer accurately. When Google explicitly requires verification or supervision, normal access waits until you complete that process and a new check permits access. A technical failure does not establish adulthood.

These checks apply when available in your installed version. Older versions may not include them. Publishing these Terms does not enable a new app feature or replace any separate app-change notice.

Age restrictions do not automatically delete your saved thoughts or cancel a subscription. Export, account-deletion and subscription-management options remain available from the access screen. Google Play subscriptions must be managed separately.

2. Description of Service

Nana is a voice-first personal knowledge app for Android, operated by Cosmos One. Capture a spoken or typed thought — from the App or its home-screen Quick Capture widgets — and Nana transcribes it, extracts the people, places, topics, decisions, and facts it mentions, and connects them into a searchable personal knowledge graph that you can query with plain-language questions.

Key features:

  • Voice and text capture, including home-screen widgets for one-tap voice notes and quick text notes.
  • Transcription of voice notes into text.
  • Knowledge extraction: titles, summaries, tags, topics, and a personal knowledge graph of the people, places, organisations, and relationships mentioned in your notes.
  • Search and retrieval, including semantic search across your notes.
  • Ask and answer: ask questions about your own notes and receive answers with citations back to the notes used.
  • Export and backup: plaintext exports (Markdown/JSON) and passphrase-protected encrypted backups.

Nana is local-first: your notes, transcripts, and knowledge graph are stored in an encrypted database on your device. The App does not sync your notes to a server. Sign-in is provided with your Google account, and AI processing (transcription, extraction, embeddings, and answers) is delivered through Cosmos Services, a cloud-based API platform operated by Cosmos One. AI processing requires an internet connection and is subject to usage quotas and rate limits administered by Cosmos Services, which may change over time.

Capturing thoughts requires a Plus or Premium membership, sold as an auto-renewing subscription through Google Play. The App shows no advertising. Memberships are described in §7.

3. Important Disclaimers

3.1 Not Professional Advice

The App's summaries, extractions, and answers are generated by automated systems for your personal information and organisation only. They are not professional advice of any kind — including medical, legal, financial, or other professional advice — and must not be relied upon as such.

3.2 Accuracy of AI Output

Transcription, extraction, and answers are produced by AI models and may contain errors, omissions, or misattributions. Nana uses your notes as context and can provide supporting references, but references do not guarantee correctness or that every statement came from your notes. Verify important information against the original transcripts and audio before relying on it. You are responsible for reviewing and correcting your notes.

3.3 Service Availability

AI processing depends on Cosmos Services and third-party AI providers, and on your internet connection. Features may be unavailable, delayed, or limited by quotas, rate limits, or service changes. Voice recordings are limited in length.

3.4 Local Data and Backups

Your notes are stored only on your device. Android system backups and device transfers are disabled for the App's data, so a lost, reset, or replaced device means your notes are lost unless you have created your own backups with the App's export and encrypted backup features. Maintaining backups is your responsibility. On a new installation, audio recordings are deleted after processing unless you enable Keep original recordings. An installation upgraded with an existing database may retain recordings until you review that setting.

4. Licence Grant

Subject to your compliance with these Terms, Cosmos One grants you a limited, non-exclusive, non-transferable, revocable licence to download, install, and use the App for your personal, non-commercial use.

You may not:

  • copy, modify, distribute, sell, lease, or sublicense the App, except as permitted by applicable law;
  • reverse engineer, decompile, or disassemble the App, except as permitted by applicable law;
  • remove or obscure any proprietary notices;
  • use the App for any unlawful purpose or in violation of applicable law or the usage policies of our AI providers;
  • transfer your licence to anyone else; or
  • use the App to generate content that is unlawful, harmful, deceptive, or infringes the rights of others.

5. User Accounts and Security

Nana uses Google Sign-In via Android Credential Manager. We never receive or store your Google password. When you sign in, Google issues an ID token that Cosmos Services verifies to create and maintain your account, as described in the Privacy Policy.

You are responsible for:

  • maintaining the security of your Google account and device;
  • all activity that occurs under your account;
  • keeping your account information accurate.

You may request account deletion at any time in the App (Settings → Advanced → Delete Account) or at cosmosone.cloud/account-deletion. A completed account deletion is irreversible and is handled by Cosmos Services as described in the Privacy Policy. After server deletion succeeds, in-app deletion also attempts to erase the local note database and recordings. A website request cannot erase data on your phone. If local cleanup fails, clear Nana’s Android app storage or uninstall it. Exported files and backups outside Nana must be deleted separately. Our use of Google user data complies with the Google API Services User Data Policy, including the Limited Use requirements.

6. User Content

You retain ownership of all notes, recordings, and other content you create in Nana ("User Content").

By using the App, you represent and warrant that:

  • you have the right to create, record, and use your User Content;
  • your User Content does not violate any applicable law or the rights of any third party (including privacy and recording-consent laws that apply where you record); and
  • you are solely responsible for your User Content and any consequences of creating, storing, or sharing it.

You acknowledge the personal nature of voice recordings and should obtain the consent of others before recording them where the law requires it.

Nana is local-first: your User Content is stored on your device and never leaves it, except for the processing described in the Privacy Policy and any exports or backups you create yourself.

7. Subscriptions and Billing

7.1 Memberships and Plans

Nana memberships are auto-renewing subscriptions (such as Plus and Premium tiers, each available in monthly and yearly billing cycles). Features, usage allowances, and processing quotas vary by membership tier.

7.2 Payment Processing and Pricing

All payments are billed and processed directly by Google Play. We never receive, process, or store your credit card, debit card, or other payment account details.

  • Prices, billing periods, renewal dates, and any applicable free trial are shown by Google Play on the purchase screen before you confirm a purchase.
  • The price displayed by Google Play at checkout is the price you pay, inclusive of applicable taxes determined by Google Play.

7.3 Renewal, Management, and Cancellation

  • Subscriptions renew automatically at the end of each billing period through your Google Play account unless cancelled before the renewal date.
  • You can view, manage, change, or cancel your subscription at any time in Google Play (Settings → Manage subscription in Nana opens your Google Play subscription page).
  • Cancellation stops future automatic renewals. You retain access to your membership tier until the end of your current paid billing period.
  • We validate purchases server-side using a purchase token and an obfuscated account identifier. Entitlements may be revoked if a purchase is refunded, charged back, or otherwise invalidated by Google Play.

7.4 Refunds and Account Deletion

  • Refunds, price changes, and billing disputes are governed by Google Play's policies and terms of service.
  • Deleting your Nana account does not automatically cancel an active Google Play subscription — you must cancel it in Google Play. Self-service deletion may remain blocked while your subscription entitlement is active, even after you cancel renewal and until your paid period ends. Contact support for help; you can also request deletion at cosmosone.cloud/account-deletion.

8. Privacy

Your privacy is important to us. Our collection and handling of information is described in the Privacy Policy, which forms part of these Terms. Key points:

  • Your note library is stored on your device in an encrypted database; they are not synced to a server.
  • AI processing sends content to Cosmos Services and its configured AI provider for transcription, organisation, semantic search, and answers using your questions and relevant note excerpts; results are returned to your device.
  • No note-database synchronisation — Nana does not synchronise the local note database to a server.
  • Optional approximate location for regional age checks. Nana explains the use before requesting consent and Android permission. Android location and geocoding providers may process the location. Nana does not retain coordinates or send them to Cosmos Services. Declining or unavailable location skips a new regional check in production; test releases check age everywhere. Already-required Google verification must still be completed. See the Privacy Policy for details and controls.
  • No advertising, analytics, or crash reporting, and no data selling (see §7 and the Privacy Policy).

9. Data Storage and Security

Your notes, transcripts, knowledge graph, and search index are stored on your device in an AES-256-encrypted database (SQLCipher), with encryption keys held in Android Keystore-wrapped encrypted storage. Authentication tokens are stored in encrypted preferences. Audio recordings are held in app-private storage. On a new installation, they are deleted after processing unless you enable Keep original recordings; an upgraded installation with an existing database may retain recordings until you review that setting.

Nana sends account information, usage information, purchase-validation information, and requested AI-processing payloads to Cosmos Services. The local note database is not synchronised to a server. Cosmos Services temporarily caches encrypted AI results for retries; its replay window is 24 hours, followed by scheduled cleanup. Some billing, usage, security, and audit records remain after account deletion, as described in the Privacy Policy. Nana's communications with Cosmos Services use TLS. Android location and geocoding services operate under their providers' security practices.

For regional age checks, Nana uses coordinates, returned regions and age bands temporarily in memory. It stores only your location choice and minimal access-restriction markers in app-private preferences, excluded from note exports and Android backups. Provider processing and retention are separate, as explained in the Privacy Policy.

Because your data is local-first, you are responsible for your own backups, as described in §3.4. Full details of storage and security measures are in the Privacy Policy.

10. Third-Party Services

The App relies on the following third-party services, which are subject to their respective terms and policies:

  • Google Sign-In for Android (Google Play Services): authentication.
  • Google Play Age Signals: age-related access checks and available app-change approval signals.
  • Android location and geocoding providers: country/state lookup from approximate location after consent and permission; the provider depends on your device.
  • OpenAI: AI processing accessed through Cosmos Services.
  • Google Play Billing: subscription payments and entitlement validation.
  • Netlify: Cosmos Services API hosting.
  • Supabase: Cosmos Services database infrastructure, including encrypted temporary AI results.

Subject to their respective terms and policies.

11. Intellectual Property

The App, including its code, design, features, and documentation, is owned by Cosmos One and is protected by intellectual property laws. "Nana", "Cosmos One", and "Cosmos Services" names and logos are our trademarks; you may not use them without permission.

Your User Content remains yours (see §6). AI-generated summaries, extractions, and answers derived from your notes are provided to you for your use.

12. Disclaimer of Warranties

The App is provided on an "AS IS" and "AS AVAILABLE" basis, without warranties of any kind, whether express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, accuracy, and non-infringement. We do not warrant that the App will be uninterrupted, error-free, or that AI output will be accurate or complete (see §3.2). We do not warrant that local data will survive device loss, damage, or reset (see §3.4).

Australian Consumer Law Notice: Nothing in these Terms excludes, restricts, or modifies any consumer guarantee, right, or remedy conferred on you by the Australian Consumer Law (Schedule 2 of the Competition and Consumer Act 2010) that cannot be excluded, restricted, or modified by agreement. If the Australian Consumer Law applies, then to the extent permitted, our liability is limited to resupplying the service or paying the cost of having it resupplied.

13. Limitation of Liability

To the maximum extent permitted by law, Cosmos One shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of profits, data, or goodwill, arising out of or relating to your use of the App — including loss of User Content stored on your device caused by device failure, loss, OS upgrades, or failure to maintain backups.

Our aggregate liability arising out of or relating to the App is limited to AUD 100 or the total amounts you paid us for subscriptions in the twelve months before the claim arose, whichever is greater.

Nothing in these Terms limits liability that cannot be limited by law, including under the Australian Consumer Law.

14. Indemnification

You agree to indemnify and hold harmless Cosmos One, its affiliates, and their personnel from any claims, damages, losses, and expenses (including reasonable legal fees) arising out of or relating to: your use of the App; your violation of these Terms; your violation of any law or the rights of a third party (including recording or privacy laws); or your User Content.

15. Termination

By you: you may stop using the App at any time. To remove your data: delete your account in the App (Settings → Advanced → Delete Account) or at cosmosone.cloud/account-deletion (server data), and delete local data via Settings → Advanced → Delete All Local Data or by uninstalling the App (device data).

By us: we may terminate or suspend your access to Cosmos Services-backed features if you violate these Terms, misuse the service, or create risk or legal exposure for us.

Effect: upon termination, your licence ends and your server-side account data is handled as described in the Privacy Policy. In-app account deletion attempts to erase the local note database and recordings after server deletion succeeds; a website request cannot do that. If local cleanup fails, clear Nana’s Android app storage or uninstall it. Exported files and backups outside Nana remain until you delete them yourself.

16. Changes to the Service

We may modify, suspend, or discontinue the App or any part of it (including AI features and quotas) at any time, without notice where reasonably necessary. We are not liable to you for any modification, suspension, or discontinuation of the service. Because your notes are stored locally, they remain available on your device even if server-backed AI processing becomes unavailable.

17. Changes to These Terms

We may update these Terms from time to time. The "Last Updated" date at the top reflects the current revision. Where notice is required by applicable law, we will provide it through an appropriate channel. Continued use of the App after changes take effect constitutes acceptance of the modified Terms.

18. Governing Law

These Terms shall be governed by and construed in accordance with the laws of Australia, without regard to conflict of law principles. Any disputes arising under these Terms shall be subject to the exclusive jurisdiction of the courts of Australia.

Nothing in these Terms limits any rights you may have under the Australian Consumer Law or other mandatory consumer protection legislation in your jurisdiction.

19. 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.

20. Entire Agreement

These Terms, together with the Privacy Policy, constitute the entire agreement between you and Cosmos One regarding the App, and supersede all prior agreements and understandings, whether written or oral, relating to its subject matter.

21. Contact Information

If you have any questions about these Terms:

Email: [email protected]
Subject Line: [Nana Terms]
Website: https://cosmosone.cloud
Response Time: Within 5 business days