Small, focused iPhone apps for recovery, sleep, fasting and nutrition — built on Apple Health, with your data staying on your device.
Recovery & Strain
Know whether today is a day to push or a day to back off. Rythm reads your Apple Health data — HRV, resting heart rate, sleep and workouts — and turns it into a daily recovery score, a strain score, and a plain-English insight about what changed and why.

Subscription required
Calorie, Macro & Fasting Tracker
Your fast tracks itself. Log a meal and MacroFast works out your fasting window from it automatically — no timer to remember to start or stop. Scan a barcode or search an offline food database for calories and macros, and if you wear a CGM, see how what you ate and how long you fasted line up with your glucose.

Free download · Premium subscription available
Intermittent Fasting Tracker
See what fasting actually does to your body. Start your fast and watch the ring fill — then open Insights to see your heart rate, HRV, blood glucose and weight graphed across the fast, pulled straight from Apple Health. Most fasting apps stop at the timer.

Free download · Premium subscription available
Sleep timer for Apple Music
Fall asleep to your own Apple Music library. Set a timer, and MySleepMusic fades the volume down gently and stops playback — so the music doesn't play all night or cut off abruptly.
Subscription required