Nimora Privacy Policy
Effective date: 2026-09-17
Operator: BigBookPlus (independent developer) (“we”, “us”)
Contact: xulingchang@gmail.com
Nimora is an iOS app that estimates heart rate, heart-rate variability (HRV) and a stress score from your device’s camera. This policy explains what data the app handles, where it goes, and the choices you have. The short version: your camera video never leaves your device, we do not operate our own servers, and we do not track you.
1. Data we process and why
| Data | Where it is processed | Purpose | Stored? |
|---|---|---|---|
| Camera video frames | On your device only, in memory | Detect your face and extract the pulse signal (rPPG) | No. Frames are discarded immediately after analysis. No photo or video is saved or transmitted. |
| Derived measurements (heart rate, HRV metrics, stress score, signal quality, timestamp, measurement duration) | On your device | Show your result, history and trends | Yes — on your device, and optionally in your private iCloud (see §3). |
| Generated PDF reports | On your device | Let you share a report when you choose to | Only while you are sharing; the file is written to a temporary folder. |
| Subscription status | Apple StoreKit on your device | Unlock Premium features | A transaction identifier is held by Apple; the app only reads your current entitlement. |
| Device model and diagnostic logs | On your device (Apple unified logging) | Choose the right on-device model tier; troubleshooting | Not sent to us. Available to you via Console.app; shared with Apple only if you opt into iOS analytics sharing. |
We do not collect your name, email address, account credentials, location, contacts, photos, health records, or advertising identifiers. Nimora does not use HealthKit.
2. No accounts, no servers, no third parties
- Nimora has no sign-up or login. We do not operate a backend that receives data from the app.
- The app contains no third-party analytics, crash-reporting, advertising or tracking SDKs.
- We do not sell, rent or share your data with anyone.
3. iCloud sync (optional)
If you are signed in to iCloud on your device and iCloud Drive is enabled for Nimora, your measurement history is synchronised through Apple’s CloudKit to your own private iCloud database (container iCloud.ai.spirits.nimora). Only your Apple ID can read it; we cannot access it. Apple’s handling of this data is governed by Apple’s Privacy Policy.
You can disable sync at any time in Settings › [your name] › iCloud › Apps Using iCloud › Nimora. Data already synced can be removed from iCloud in Settings › [your name] › iCloud › Manage Account Storage.
4. Purchases
Nimora Premium is an auto-renewable subscription sold through Apple’s In-App Purchase system. Payment, billing details and refunds are handled entirely by Apple; we never see your payment information. See Apple’s Media Services Terms.
5. Data retention and deletion
- All measurement data is under your control. Delete individual entries in the History screen, or delete the app to remove all local data.
- To remove iCloud copies, follow §3.
- We keep nothing on our side because nothing is sent to us.
6. Security
Analysis runs on-device using Apple’s Core ML. Local data is protected by iOS data protection (encrypted at rest when your device is locked). iCloud data is encrypted in transit and at rest by Apple.
7. Children
Nimora is not directed at children under 13 (or the minimum age in your jurisdiction) and we do not knowingly collect data from them. Because no data is collected by us, no special handling applies; parents who wish to remove data can simply delete the app.
8. Your rights
Depending on where you live (for example the EU/UK GDPR, California CCPA/CPRA, China PIPL), you may have rights to access, correct, delete or port personal data. Since we hold no personal data about you, these rights are exercised directly on your device as described in §5. For any questions, contact xulingchang@gmail.com; we respond within 30 days.
9. International users
The app is distributed worldwide through the App Store. All processing happens on your device; iCloud data is stored by Apple in the region associated with your Apple ID.
10. Health information notice
Readings produced by Nimora are wellness estimates for informational purposes only and are not medical data, diagnoses or advice. See the Health Disclaimer.
11. Changes to this policy
We may update this policy as the app evolves. Material changes will be announced in the App Store release notes and the effective date above will change. Continued use after the effective date constitutes acceptance.
12. Contact
BigBookPlus (independent developer)
xulingchang@gmail.com
This English version is the authoritative text. Translations are provided for convenience.