Your workouts are changing your biological age. MakeFit shows you exactly how.
Every session, every night of sleep, every rest day — tracked and scored against your Body Age, a real-time fitness indicator built from VO2 max estimates, heart rate recovery, sleep consistency, strength volume, and training zone distribution.
JOIN YOUR COMMUNITY
Compare your biological age and aging rate on shared leaderboards. See who's improving fastest. Get personalized recommendations based on real health data, not algorithms optimized for engagement.
DAILY READINESS & RECOVERY
Vitals scores combine sleep quality (duration, efficiency, consistency) with daytime recovery signals so you know whether to push or rest before you start.
TRAINING THAT ADAPTS
The workout recommender adjusts daily and weekly targets to your actual recovery state — cardiovascular, strength, and rest balanced against your fitness trend, not a fixed plan.
AI FITNESS COACH — FULLY ON DEVICE
On supported devices with Apple Intelligence, your health coach processes everything locally. Nothing leaves your phone. No cloud, no profile, no exposure.
ADVANCED WORKOUT ANALYSIS
Heart rate zones, training distribution, heart rate recovery curves, 42-day fitness trend with projection. Every metric feeds back into Body Age.
SLEEP DEFICIT TRACKING
Cumulative 3-day sleep deficit model with visual alert. Bedtime notifications use fresh, context-aware data — not a fixed schedule.
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MakeFit is not a medical device. Not a substitute for medical advice. Insights are informational and trend-based only.
Terms: makef.it/app-terms
I really like that the app is fully local and private with the health data
Doesn't sync unless you open the app
AziSteller
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Developer Response
Hi, just making it clear that this is for an much older version, from basically ten years ago, that was using Pebble watch to sync, if you remember that wonderful thing. Has nothing to do with the current version of the app, absolutely no code is being shared. Completely different MakeFit, just name share.
Must download for pebble users
Ggreet
Great app for tracking workouts I have a Bluetooth heart rate monitor it it seemly connected to the watch for easy phone less HR viewing. I searched for an hour trying to find an app with this functionality and this I the only one I found that was free.
Bug fixes and improvements to weekly goals time in zone counting
Version 3.1.15
The developer, Cronian Labs, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
