Privacy Policy — Sihha Fit

Effective date: June 9, 2026 · Developer: Hadi Ataei · ataeii@gmail.com

1. What data we collect

Category	Examples	Purpose
Account data	Email address	Authentication (Firebase Auth)
Profile data	Name, age, weight, height, fitness goal, equipment	Personalise AI-generated workouts and meal plans
Workout data	Exercise logs, sets, reps, weights, completed workouts	Track progress, generate progressive overload suggestions
Nutrition data	Food logs, calorie and macro entries, meal photos	Nutrition tracking and AI analysis
Body metrics	Weight entries, body fat percentage	Progress charts
Health data (iOS)	Heart rate, resting heart rate, step count, active calories	Display fitness stats alongside your logged data
Usage data	In-app actions, crash reports	App stability and improvement

2. How we use your data

AI features — Your profile, workout history, and nutrition logs are sent to Google Gemini (via Firebase Vertex AI) to generate personalised workouts, meal plans, food analysis, and coaching summaries. No data is stored by Google for training purposes under the Vertex AI enterprise agreement.
Authentication — Email and password are handled by Firebase Authentication. We do not store plaintext passwords.
Health data — Apple Health data is read on-device only. It is displayed in the app and is never uploaded to our servers or sent to third parties.
Payments — Subscription management is handled by RevenueCat. We do not store payment card details.
Analytics / crash reporting — We may collect anonymised crash data via Expo/EAS to improve stability.

3. Data storage and security

All user data (workouts, nutrition, metrics) is stored in Google Firestore, secured with per-user access rules — only you can read and write your data. Data is stored in Google Cloud's US region. Connections between the app and our servers use TLS encryption.

4. Data sharing

We do not sell your data. We share data only with the following service providers, strictly to operate the app:

Provider	Purpose	Privacy policy
Google Firebase	Auth, database, AI	policies.google.com/privacy
Google Vertex AI	AI workout and nutrition generation	cloud.google.com/terms
RevenueCat	Subscription management	revenuecat.com/privacy
Apple HealthKit	On-device health data reading	apple.com/legal/privacy

5. Health data (HealthKit)

Sihha Fit requests read access to Apple Health to display your steps, active calories, heart rate, and resting heart rate in the Progress screen. This data is read on-device only, is never uploaded to Sihha Fit's servers, is never shared with third parties, and is used solely for display purposes within the app.

6. Your rights

Delete your account — Contact ataeii@gmail.com to have your account and all associated data permanently deleted from Firestore.
Export your data — Contact us to request a copy of your data.
Revoke health permissions — Go to iOS Settings → Privacy & Security → Health → Sihha Fit.

7. Children

Sihha Fit is not directed at children under 13. We do not knowingly collect data from children under 13.

8. Changes to this policy

We will notify users of material changes via an in-app notice. The effective date at the top of this page will be updated.

9. Contact

Questions? Email ataeii@gmail.com.