Workout tracker for iPhone and Android
Free workout log.
No caps.
Unlimited templates, every chart and every body measurement, free. Bring your whole Strong or Hevy history in one import.
Free to download for iPhone and Android. The AI coach is Kilos Pro after 5 free questions.
- Import from Strong or Hevy
- Works offline
- No ads
Free in Kilos
Load as much as you like.
Charts, unlimited templates and every body measurement, free. In Strong and Hevy, parts of these are paid features.
- Workouts
- Templates
- Charts
Logging, templates, charts, measurements and both calculators are free in Kilos. The AI coach is Kilos Pro: your first 5 questions are free, then it is a subscription.
| Feature | Kilos | Strong | Hevy |
|---|---|---|---|
| Workout templates | FreeNo limit | Partly free1Free version: 3 routines; more with Strong PRO | Partly free2Free version: 4 routines; more with Hevy Pro |
| Exercise charts | FreeEvery exercise, back to your first workout | Partly free3,4Strong's help centre lists the Charts tab as Strong PRO; the Records and History tabs are free | Partly free2,5Free version: up to 3 months of history; all time with Hevy Pro |
| Body measurements | FreeAll 18: weight, body fat, calories and 15 body parts | Partly free6Weight, body fat and calories free; Strong's help centre lists body part measurements as Strong PRO | Partly free7Free version: body weight and waist; the rest with Hevy Pro |
| Plate calculator | Free | Paid tier8Strong's help centre lists it as a Strong PRO feature | Free9 |
| Warm-up calculator | Free | Paid tier10Strong's help centre lists it as a Strong PRO feature | Paid tier2Hevy Pro |
| Custom exercises | FreeNo limit | Free11Strong's help centre (2021) describes creating them with no limit or PRO mentioned | Partly free12Free version: 7; more with Hevy Pro |
| CSV export | Free | Free13Strong's help centre (2021) describes it with no PRO mentioned | Free14 |
| Apple Watch app | Not yet | Free1 | Free5 |
| Supersets | Not yet | Free1 | Free5 |
| RPE tracking | Not yet | Free4On strong.app's feature list | Free15 |
Competitor details from Strong's App Store listing, strong.app and help.strongapp.io, and from Hevy's help centre (help.hevyapp.com), read 4 November 2026. Features and prices may have changed since.
The Kilos column was checked against the app on 15 October 2026.
The 15 sources
- Strong, App Store listing (US), read 4 November 2026
- Hevy, Help centre: Hevy Pro Subscription, what does it include?, read 4 November 2026
- Strong, Help centre: About Exercise Detail Screen, read 4 November 2026
- Strong, strong.app home page, read 4 November 2026
- Hevy, Help centre: 2026 Features Guide, read 4 November 2026
- Strong, Help centre: How to add Measurements, read 4 November 2026
- Hevy, Help centre: switching from Pro to the free version, read 4 November 2026
- Strong, Help centre: About Plate Calculator, read 4 November 2026
- Hevy, Help centre: How to use the Plate Calculator, read 4 November 2026
- Strong, Help centre: Warm-up calculator, read 4 November 2026
- Strong, Help centre: How do I create a custom exercise?, read 4 November 2026
- Hevy, Help centre: Exercise Library and Custom Exercises, read 4 November 2026
- Strong, Help centre: Can I export my workout data?, read 4 November 2026
- Hevy, Help centre: Exporting Your Data from Hevy, read 4 November 2026
- Hevy, Help centre: Workout Settings Preferences, read 4 November 2026
Switching from Strong or Hevy
Bring your whole logbook.
Every workout you logged comes across in one import and sits next to the new ones, so your records and charts start where you left off.
- Export your workouts as a CSV file in Strong or Hevy.
- Open Settings in Kilos, then Import & export.
- Choose Import from Strong or Import from Hevy and pick the file.
Step-by-step guides: import from Strong or import from Hevy.
Records
A trophy on every set that beat your best.
Lift heavier than ever, or more reps than ever at a weight, and the set is marked as a record the moment you log it, with what you beat and by how much.
Watch the numbers climb.
Every exercise has its own chart, free: estimated one rep max, heaviest weight and volume, back to your first workout. The estimate uses the Epley formula, the same one as our free one rep max calculator.
- 88.6 kgon Jul 28
- 91.8 kgon Aug 6
- 97.5 kgon Aug 13
- 98.2 kgon Aug 24
- 104 kgon Sep 3
- 107.2 kgon Sep 19
Romanian deadlift over eight weeks in a sample log. One plate per 2.5 kg of estimated one rep max above 70.
In the workout
Less typing between sets. More lifting.
Log a set in one tap
Tick the set off, or tap Start when you pick up the bar and Finish when you put it down. Last time’s weight and reps sit next to it, so you know the number to beat.
Rest that counts itself
The rest timer starts when the set ends. Rest longer than you planned and you see by how much, right under the set.
Machine busy? Swap it
Tap Machine busy for exercises that train the same muscles. With Kilos Pro, the coach adds its picks and a reason for each.
Lifting with a friend? Log for both of you.
Add a friend who does not have the app and log their sets on your phone as you go. When you finish, send them the workout with a link; it is theirs when they install Kilos. Your own workouts stay private until you choose to share one.
A coach that has read your recent workouts.Pro
Ask how your lifts are going and the answer comes with numbers from your recent workouts. It can plan a week around your goal and your gym’s equipment. Your first 5 questions are free; it is off until you turn it on, and the app shows what is sent before you do.
- No ads, no selling data. We do not sell data, show ads or share it with anyone else.
- Private by default. A workout is only seen by others if you choose to share it.
- The coach asks first. Nothing goes to the AI coach until you turn it on.
- Leave any time. Export every set as CSV, or delete your account and its data from the app.
Questions
Is Kilos free?
Logging workouts, your history, templates, charts, measurements, imports and training with friends are free. The AI coach is Kilos Pro: your first 5 questions to the coach are free (per account, not per day), then it needs a subscription, as do Plan with AI and the coach's Machine busy picks. You subscribe in the app, through the App Store or Google Play; the price, and any free trial your account can get, is shown there before you pay.
Is Kilos on iPhone and Android?
Kilos is made for iPhone and Android, with the same account and your workouts on both. The iPhone app is in the App Store. The Android app is in Google Play.
Can I import my workouts from Strong or Hevy?
Yes. Export your history as a CSV file in Strong or Hevy, then in Kilos open Settings, Import & export, and choose Import from Strong or Import from Hevy. Your workouts and sets come across, and the steps to get the file are shown in the app.
Can I export my data?
Yes. Settings, Import & export, Export all workouts gives you a CSV file with one row per set as it was done: the exercise, weight, reps, and when the set started and ended. You can also delete your account and all its data from the app.
What does the AI coach see?
Nothing until you turn it on. Before you do, the app shows what would be sent and to whom. Once it is on, the coach gets the exercises, sets, reps and weights you log, your recent workouts, body measurements you entered and your gym's equipment list. Turn it off in Settings at any time. We do not sell data or show ads.
Does it work without a connection?
Yes. Logging a workout happens on your phone and needs no connection; anything you log offline syncs the next time you have signal. The coach needs a connection, because it runs on our server.
Something else? See Support or mail support@kilosapp.com.
Free lifting calculators
The same math the app uses, in your browser. No account needed.
Lift. Log.
Get stronger.
Log your next workout in Kilos, free and with no caps, and bring your Strong or Hevy history with you.
Free to download for iPhone and Android. The AI coach is Kilos Pro after 5 free questions.