SynapseGym
Brain training backed by studies. Not vibes.
SynapseGym doesn't just hand you a score. It measures your mind across six core skills, shows you where you're sharp and where you slip, then builds your daily training around your weakest one — and you watch the numbers actually move. Real cognitive science (Dual N-Back, Stroop, Go/No-Go), turned into short sessions that feel like play. Plus meditation and gratitude, because a sharp mind needs a calm one.
Most brain games just give you a score
You play a few rounds, a number goes up, and you never really know what changed. SynapseGym works the other way around: it measures where your mind is sharp, where it slips, and trains exactly the skill that's holding you back — then proves the difference with numbers that actually move.
Built on studies, not vibes
A short Mind Check maps you across six cognitive skills. From there, a daily session targets your weakest one — built on paradigms cognitive scientists actually use:
- Working memory — Dual N-Back
- Attention & control — Stroop, Go/No-Go
- Processing speed — reaction drills
- Flexibility, impulse control, planning — and more
Re-check every couple of weeks and watch your reaction time and scores climb. A few minutes a day is enough.
More than a brain trainer
A sharp mind needs a calm one. Built-in meditation, a gratitude journal and habit tools keep you steady — because focus isn't only about pushing harder.
Small, honest, yours
Built by one person in Munich. Most exercises are free; Premium — a few euros a month, cheaper yearly — unlocks your full cognitive profile and the complete library. A training and self-assessment tool, not a medical device or a diagnosis.
Screenshots
Tech stack
- Swift
- SwiftUI
Platforms
- iOS
Tags
- Health
- Brain Training
- Mental Fitness
Articles about this app.
Privacy
Show full privacy policy
PRIVACY POLICY - SynapseGym
Your privacy matters. This app is designed with privacy in mind.
1. What Data Does the App Collect?
User-Generated Content (stored locally):
- Training Results: Performance statistics, scores, progress
- Training Settings: Difficulty level, exercise selection
- HealthKit Data: Only when user enables (workouts, heart rate)
- Apple Watch Data: Training sessions, movement data
- App Settings: Language, notifications, design
- Achievements: Earned badges and levels
Data that is NOT collected:
- No user accounts or registration
- No analytics or tracking
- No crash reports
- No device information
- No location data
- No usage statistics
- No advertising IDs
2. Where is Data Stored?
Primary: Local Storage (iPhone/iPad/Apple Watch)
- Core Data: All training data and statistics
- HealthKit: Health data (if enabled)
- UserDefaults: App settings
- WatchKit: Apple Watch companion app data
Optional: Via Apple Services
- HealthKit Sync: Between iOS devices (user-controlled)
- Watch Sync: Between iPhone and Apple Watch
- No iCloud: Training data stays local
3. Permissions
Requested Permissions:
- HealthKit: "SynapseGym wants to write training data to the Health app"
- Apple Watch: For companion app and workout tracking
- Notifications: For training reminders (optional)
NO other permissions
- No camera access
- No microphone
- No location
- No contacts
- No photo library
4. Data Transmission
Only Apple Services:
- App Store: For in-app purchases
- HealthKit: Only when user enables
- Apple Watch: Secure synchronization
- No external tracking or analytics
No External Data Transmission:
- All data stays within Apple ecosystem
- No third-party services
- No cloud backup except Apple
5. Legal Compliance
App Store Privacy Label: "Data not collected" (for tracking)
Justification:
- All data stays local or within Apple services
- No external data transmission
- HealthKit is user-controlled and Apple-encrypted
6. Contact
For questions: privacy@synapsegym.app Updated: 2026