Mental Stamina

Spend about 6–10 minutes completing three exercises drawn from mental math, short-term memory, spatial memory, and rule reasoning. Review your accuracy and response times for exercises in this app. Training data stays on your device by default. Daily sessions and automatic difficulty adjustment are always free. Subscribe to Mental Stamina Pro monthly for focused practice, per-module duration or question count, manual difficulty levels 1–10, and your complete local history. Your subscription renews automatically and can be canceled anytime in App Store Account Settings. This app is not a medical device and does not screen for, diagnose, or treat cognitive impairment. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/