Training
The workout tracker that remembers last time.
Made in the UK by Bolt Business Limited, company number 16864050 · No ads, no trackers
Health AI is a workout tracker and gym log for iPhone. Every exercise shows what you lifted last time, a rest timer counts down on your Lock Screen, and your best lifts are kept for you. The coach reads your last 30 days of training, food and runs.
- 3 days free
- Then £9.99 a month
- Cancel any time in your Apple account
Logging
How do you log a workout?
Start a routine you built, or an empty workout, and add exercises from a library of 300, all with written steps, most with a drawing. Every exercise shows what you did last time beside each set: tick a set to log the numbers shown, or type over them.
Weights, bodyweight, holds and warm-ups: how each is logged
| Kind of set | Logged as |
|---|---|
| Weight and reps | Kilograms or pounds. |
| Bodyweight | Reps, for pull-ups and press-ups. |
| Holds | Seconds, timed as you hold. |
| Warm-ups | Kept out of your volume, bests and set counts. |
Sets save to your phone as you go, no signal needed.
The rest timer on your Lock Screen, and on your wrist
| Under Rest in Train → Settings | What it does |
|---|---|
| Default rest | 90 seconds, or 15 seconds to 5 minutes. |
| Start rest after each set | Starts the timer when you tick a set. Off by default. |
| Alert when the screen is off | A notification when a rest ends, with a tap on a paired Apple Watch. |
The countdown and your next set stay on the Lock Screen, with +15 and Skip; with a Dynamic Island, the countdown shows there in other apps.
- 3 days free
- Then £9.99 a month
- Cancel any time in your Apple account
Cancel at least 24 hours before the three days are up and you pay nothing.
Personal bests
Which personal bests does it keep?
For every weighted lift: your heaviest weight, estimated one-rep max, and best set and session by volume. For bodyweight it keeps your most reps; for holds, your longest. A NEW BEST badge appears mid-workout the moment you beat your heaviest.
The coach reads your last 30 days of workouts
Each exercise's set count and top set, and saved routines.
Ask for a routine and it drafts three to eight exercises to check and save; it never logs anything.
Also see the running app, the protein tracker, the AI coach, or everything Health AI does.
Workout log app, notebook or spreadsheet: what each does between sets
| What you need | Health AI | A notebook | A spreadsheet |
|---|---|---|---|
| Last time's sets | Beside every set | Turn back the pages | Scroll up |
| Rest timer | On the Lock Screen | A separate timer | A separate timer |
| Personal bests | Kept for you | By hand | Formulas you write |
| Food and runs | In the same app | Elsewhere | Another sheet |
| Cost | £9.99 a month, after 3 days free | A notebook and a pen | Free |
A notebook never needs charging.
One session, set by set
A bench press session, as the app records it.
Follow one bench press session to a new best
Questions
Workout tracker questions, answered.
Is there a free workout tracker app?
Several are free with limits. Health AI is three days free, then £9.99 a month, with no adverts. If you stop paying, logging workouts keeps working.
How do I cancel the free trial?
In your iPhone's Settings → your name → Subscriptions. Cancel at least 24 hours before the three days end and you pay nothing.
Does it work on Apple Watch?
Not for logging: sets go in on your iPhone. With iOS 18 and watchOS 11, its card shows in the Smart Stack; switch on Alert when the screen is off and a rest ending taps your wrist.
How often should you strength train?
The NHS advises strengthening activities that work all the major muscles on at least 2 days a week, and lifting weights counts. Health AI's weekly goal starts at 3 workouts.
Can I get my workouts out?
Yes: every workout as one JSON file, from Train → Settings → Export workout data. Finished ones can also go to Apple Health.
Coming to the App Store in the UK, for iPhone with iOS 17 or later. Screens show sample data.
Every set, remembered.
Training, runs and food in one app, with a coach that reads your last 30 days of all three.
- 3 days free
- Then £9.99 a month
- Cancel any time in your Apple account
Cancel at least 24 hours before the three days are up and you pay nothing.