Synapse: Dual N-Back

Synapse is a focused dual n-back training app built for short, structured sessions. Start with an introductory baseline, learn the visual and audio matching task, then build a routine at a level that adapts to your performance. FEATURES • Visual and audio dual n-back training • Quick, Deep and Marathon session options • Adaptive difficulty • Personal progress and session history • Streak tracking and achievements • Optional reminders • Local-first design: your training history stays on your iPhone • No account required Synapse provides estimated cognitive scores for motivation and progress tracking. These scores are not medical assessments or clinical measurements. Synapse does not diagnose, treat, cure or prevent any condition. Subscriptions unlock ongoing training. Payment is charged to your Apple ID. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Privacy Policy: https://trysynapseapp.vercel.app/privacy.html Terms of Service: https://trysynapseapp.vercel.app/terms.html