# MSCLS — Private Gym & Strength Tracker for iPhone

> A beautifully crafted, on-device gym and strength tracking app for iPhone. No accounts, no cloud, no tracking. Privacy at its core.

MSCLS is an iOS app for logging strength training workouts. It is built with Apple's native design language and follows Apple Human Interface Guidelines. All data stays on your device — there are no accounts, no analytics, no tracking SDKs, and no data collection. If iCloud is enabled, sync stays within the user's own iCloud account.

MSCLS is available on the App Store (id 6772619596) for €1.49/month (30-day free trial) or €24.99 for lifetime access.

## Key features

- **Thermal Muscle Heatmap**: A dynamic 7-day heatmap across male and female body figures shows which muscles were trained and how hard. Helps identify overtraining and neglected muscle groups at a glance.
- **Live Workout Runner**: A focused active view for logging sets, weights, and reps. Personal records are detected and surfaced in real time.
- **Multi-Gym Tracking**: Logs and personal records are kept separate per gym location, so different equipment and plate weights never blur together.
- **Smart Exercise Library**: A searchable, filterable picker for every exercise. Effective weight for bodyweight variants is calculated automatically.
- **Optional Heart Rate**: Heart rate is strictly opt-in. The iPhone runs the session on its own; a paired Apple Watch or Garmin watch can stream heart rate when desired.
- **Apple Health Sync**: Finished sessions, durations, and heart-rate data can be synced to Apple Health.
- **Strava Export**: Opt-in upload of finished workouts to Strava as rich strength activities, including a muscle heatmap, heart-rate chart, and per-exercise breakdown.
- **Privacy by Design**: No account or login required. No server-side data storage. Nothing leaves the device unless the user explicitly chooses to share.

## Ideal for

- People who want a gym tracker that doesn't collect or monetize their health data
- Lifters who train at multiple gyms and need separate logs per location
- Anyone who wants to visualize weekly muscle load and recovery
- iPhone users who value native iOS design and do not want a subscription to a cloud service
- Users who want optional Strava or Apple Health integration without being forced into it

## Platform

- **Requires**: iPhone with iOS 17 or later
- **Optional**: Apple Watch or Garmin watch for heart-rate streaming only (no logging on watch required)
- **Languages**: English
- **Privacy**: No account, no analytics, no third-party SDKs, no data collection

## Pricing

- Monthly: €1.49/month with a 30-day free trial
- Lifetime: €24.99 one-time purchase
- Current pricing is always shown on the App Store listing

## Links

- [Website](https://mscls.app/): Homepage with feature overview and FAQ
- [Privacy Policy](https://mscls.app/privacy.html): Full privacy policy
- [App Store](https://apps.apple.com/app/id6772619596): Download on the App Store
- [Instagram](https://www.instagram.com/mscls.app): @mscls.app
- [Contact](mailto:mscls.app@icloud.com): mscls.app@icloud.com