In short. Capture, Think, and your graph stay on this device. When you run cloud Jump (generative AI), we send only a small cited card packet—not your whole library.
1. Who we are · contact
Jump Brain (“the app”, “we”). Questions or account deletion: lism60987@gmail.com
2. What stays on your device
By default the following stay local (e.g. on-device SQLite):
- Notes, topics, concepts, insights, and the link graph
- Photo attachment paths; text after speech-to-text
- Settings, theme, language; optional Premium coupon state
- Exports (e.g. Markdown) leave the device only when you share them
Capture and Think work without signing in. Your local brain does not require an account.
3. AI feature (Jump) and data transmission — Purpose 1
Jump is a cloud generative AI feature and the app’s primary AI brand. Running Jump sends data off your device.
- When: you explicitly run Jump (e.g. reading-order suggestions)
- What: a selected card packet (title, body, and related fields needed for cited proposals)—not a bulk upload of your entire library or photo originals
- Why: app functionality—to produce the Jump proposal you requested
- Path: device → our Jump proxy (Cloudflare Workers) → a large language model provider (current closed beta: DashScope / Qwen family). Providers may change; we will update this policy when they do
- Logging: the proxy is designed not to retain or log message bodies long-term. Technical metadata for quotas and reliability (e.g. rate limits, status codes) may be stored
If you never run Jump, this transmission does not happen. The local capture → think loop still works offline for your notes.
4. Account · limits — Purpose 2 (security / quota)
Optional Google sign-in (via Supabase Auth) supports monthly cloud Jump limits that survive reinstall.
- Examples: email, account identifiers, auth tokens, free Jump counts
- Purposes: account management, abuse prevention, monthly Jump caps
- The proxy may use technical signals such as request IP for rate limits
5. Device permissions
- Camera · photos: attach images to notes / on-device OCR
- Microphone · speech recognition: dictation. Platform speech services may process audio
You can deny permissions and still type notes. Photo binaries are not part of the default Jump packet.
6. Product improvement — Purpose 3 (inactive today · B0)
Later we may use limited data to improve quality (prompts, linking, reliability) only if you opt in. When that exists:
- Default OFF — no improvement collection without consent
- Pseudonymization and masking — strip direct identifiers; reduce or aggregate content (not a full-brain archive)
- Not for: ads targeting, sale to third parties, or publishing your notes as open training data for others
- Withdraw via settings (when available) or email
Today (policy v1.0): we do not run a separate product-improvement collection pipeline. When we introduce one, we will revise this policy, ship an in-app control, and update Play Data Safety together.
7. Third parties · service providers
- Cloudflare — Jump proxy and hosting for this page
- LLM provider — Jump generation (beta: DashScope / Qwen)
- Supabase — optional authentication
- Google — optional OAuth sign-in
- On-device embedding model CDN — model file download, not note upload
These process data to run the product and infrastructure within the purposes above. We do not sell your notes for advertising profiles.
8. Retention · deletion
- Local data: uninstall, device reset, or in-app delete / export actions
- Jump packets: processed to fulfill the request; we do not mirror your full brain on our servers
- Account: email lism60987@gmail.com to request deletion
9. International transfer · security
Jump and cloud services may process data in regions outside your country. We use HTTPS and similar industry practices in transit. No method is perfectly secure.
10. Children
The app is not directed at children. We do not knowingly collect personal information from children.
11. Changes
When practices change, we update the date and version on this page. Material changes may also be noted in the app or store listing.
12. Contact
Privacy questions and deletion requests: lism60987@gmail.com