Privacy Policy

Last updated: March 15, 2026

This Privacy Policy describes how Jarji ("we", "our", "us") collects, uses, and protects information when you use our nFlow family of applications: CODnFlow, BalancenFlow, and EndurancenFlow (collectively, "the Apps").

1. Information we collect

On-Device Data (never leaves your phone):

Body pose detection data from the camera (processed by Apple Vision Framework entirely on-device)
CMAS, BESS, and fitness assessment scores stored locally
Exercise completion history and XP progression
Motion data from device sensors for movement phase detection
AI coaching cues generated by Apple Foundation Models on-device

Data shared with Apple (standard iOS):

GameCenter leaderboard scores (if you authenticate with Game Center)
App Store subscription status via StoreKit
Crash reports and basic analytics (if you opt in via Apple Settings)

Data shared with Google (Pro subscribers only, with explicit consent):

If you subscribe to Pro and grant consent via our Gemini Consent Sheet, video analysis data may be sent to Google Gemini API for advanced form analysis
This feature is entirely optional and can be disabled in Settings at any time
No data is sent to Google without your explicit, informed consent (Apple Guideline 5.1.2i)

2. How we use information

To provide real-time form analysis and coaching cues during exercises
To calculate and track your CMAS, BESS, or fitness assessment scores
To maintain your exercise history, streaks, and GameCenter rankings
To deliver haptic coaching cues via iPhone, Apple Watch, or Bluetooth devices
To improve the Apps through anonymised, aggregated usage patterns

3. Camera and microphone

The Apps use your device camera for real-time body pose detection and form analysis. Video is processed entirely on-device using Apple Vision Framework and is never recorded, stored, or transmitted unless you explicitly choose to save an assessment recording to your Photo Library.

The microphone is only accessed when Advanced AI Analysis (Gemini, Pro only) is enabled and you choose to record audio alongside your workout video.

4. Data storage and security

All exercise data, scores, and history are stored locally on your device using Core Data
Subscription status is managed by Apple StoreKit and not stored on our servers
We do not operate any backend servers. There is no user account system.
If you use Gemini AI analysis (Pro), the API key is stored in your device Keychain with hardware encryption

5. Third-party services

Apple GameCenter: For leaderboard rankings and achievements
Apple StoreKit: For subscription management
Apple Foundation Models: For on-device AI coaching (iOS 26+)
Apple Vision Framework: For on-device body pose detection
Google Gemini API: For advanced form analysis (Pro only, with consent)
Stripe: For website pre-order payments (nflow.fit only, not in-app)

6. Children's privacy

The Apps are rated 4+ and do not knowingly collect personal information from children under 13. The Apps do not require an account and do not collect personally identifiable information.

7. Data retention and deletion

All data is stored locally on your device. Deleting the App removes all associated data. There is no cloud backup of your exercise data unless you use iCloud backup for your entire device.

8. Your rights

Since all data is stored locally on your device, you have complete control over your data at all times. You can:

View all your data within the App (Progress tab)
Delete all App data by deleting the App
Disable camera access in iOS Settings at any time
Disable Gemini AI analysis in the App's Settings
Opt out of Apple Analytics in your device Settings

9. Changes to this policy

We may update this Privacy Policy from time to time. We will notify you of any changes by posting the new Privacy Policy on this page and updating the "Last updated" date.

10. Contact us

If you have any questions about this Privacy Policy, please contact us at:

Email: privacy@nflow.fit
Developer: Jarji
Location: Turin, Italy
Apple Developer Team: XTJM946P35