Faster Stronger

Privacy Policy — Effective May 14, 2026

Overview

Faster Stronger is a personal health coaching app that reads your Apple Health data on-device and uses AI to generate personalized insights and coaching. Your privacy is fundamental to how the app is built — we do not run our own servers, do not maintain user accounts, and do not store your health data outside your device.

Data We Access

With your explicit permission, Faster Stronger reads the following data types from Apple HealthKit:

• Step count and walking/running distance
• Active energy burned and exercise minutes
• Heart rate, resting heart rate, and heart rate variability (HRV)
• Sleep analysis (in-bed, asleep, core, deep, REM, awake stages)
• Workouts (activity type, duration, calories, distance)
• Flights climbed
• VO2 max

The app accesses your device microphone only if you choose to use the optional voice coaching feature.

How Your Data Is Used

• On-device analysis: Your health data is processed locally on your device to compute trends, segments, charts, and statistics. This requires only HealthKit permission.
• Explicit consent for AI features: Before any health data leaves your device for a third-party AI provider, the app presents a separate “Enable AI Coaching” consent screen that explains what data will be sent, to which provider, and why. AI features remain disabled until you tap “Enable AI Coaching”. You can revoke this consent at any time in Settings > AI Coaching.
• AI-powered insights: Once you consent, your recent health data — daily metrics, sleep stages, workouts, heart-rate samples — is included in the prompt sent to your selected AI provider only when you trigger an analysis. The data leaves your device only for the duration of the request.
• No third-party storage of your data is requested. AI providers may temporarily retain prompt content for abuse-monitoring as described in their own policies, but the data is not used to train models or shared further.

Data Storage

• All HealthKit data remains in Apple Health on your device.
• The app caches the most recent AI insights, coaching messages, daily snapshots, and answered follow-up questions locally on your device so it can run offline and personalize over time. This local cache is removed when you delete the app.
• We do not maintain any external database of your health information.
• The app has no user accounts, no logins, and no authentication systems.

Third-Party Services

Faster Stronger uses third-party services to deliver the AI coaching experience. You can choose your AI provider in Settings.

• Anthropic (Claude) — AI provider for health analysis and coaching (anthropic.com/privacy)
• Berget (GLM models) — alternate AI provider for health analysis (berget.ai/privacy)
• OpenAI — alternate AI provider used in some configurations (openai.com/privacy)
• ElevenLabs — voice synthesis and recognition for the optional voice coaching feature (elevenlabs.io/privacy)
• Apple StoreKit — processes your subscription purchase. Apple, not Faster Stronger, handles your payment information.

We recommend reviewing the privacy policies of any provider you choose to use.

Subscriptions and Purchases

Faster Stronger Pro is an auto-renewable subscription billed monthly through your Apple ID. The subscription automatically renews each month unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription at any time in iOS Settings > Apple ID > Subscriptions.

The app receives anonymous transaction identifiers from Apple StoreKit to verify your subscription status. We do not receive your name, email, billing address, or payment details — that information stays with Apple.

Diagnostics

If you tap Send Diagnostics in Settings, the app will send your recent in-app log and basic device information (model, iOS version, locale, app version) to the developer to help fix bugs. This is opt-in — nothing is sent without you explicitly tapping the button. Diagnostic submissions never include your health data, credentials, or API keys.

Data Sharing

We do not sell, rent, or share your personal health data with any third parties for marketing or advertising purposes. We do not use any analytics or tracking SDKs. We do not use IDFA, advertising identifiers, or cross-app tracking.

Your Control

• You can revoke HealthKit access at any time in iOS Settings > Privacy & Security > Health > Faster Stronger.
• HealthKit permissions are granular — you choose which data types to share.
• Deleting the app removes all locally cached data.
• You can cancel your subscription at any time in iOS Settings > Apple ID > Subscriptions.

Children's Privacy

Faster Stronger is not directed at children under 16. We do not knowingly collect data from children. If you believe a child has used the app, contact us and we will help you remove any locally cached data.

Changes to This Policy

We may update this privacy policy from time to time. Material changes will be reflected on this page with an updated effective date.

Contact

If you have questions about this privacy policy or how the app handles your data, please contact hlandgren@gmail.com.