Compare · IronStack
IronStack, line by line.
Line by line, including what they do better. Checked against their own pages, . Pricing coming soon.
IronStack is a lifting log for iPhone and Apple Watch. You bring your history, log a set by tapping, typing or saying it, and the rest clock talks in your earbuds.
One thing that isn't a row below: MissionStack puts the workout you're logging on a TV, an iPad or a Mac, one lifter at a time today.
Line by line
| Feature | IronStack | Hevy | Strong |
|---|---|---|---|
| Bring your history | Hevy and Strong exports bring your history and routines. JuggernautAI and any spreadsheet you kept bring history. A preview shows what it found before anything is saved. | Imports Strong CSV files only. One import per account, which can be reverted. Files converted from other apps are not supported. | No import. Strong's own CSV export "cannot be imported back into Strong." |
| Apple Watch | A watch app that runs the workout with your phone nearby: log the set, the rest clock, timed sets, finish from your wrist. The workout lands in Apple Health with heart rate. Coming soon The watch runs the workout on its own when your phone is out of range. | Watch app (and Wear OS). The site says you can track workouts "completely from your Apple Watch or WearOS device." The App Store says watch workouts save when the watch reconnects to the iPhone. | Watch app that logs workouts "with or without your iPhone." Plate and warm-up calculators are not on the watch. |
| Rest timer | Starts itself, calls "Thirty seconds", "Five seconds" and "Get to work" in your earbuds, and fills the screen at the end. | Automatic rest timer, with a per-exercise and a default setting. | "Built in Auto Countdown Timer," with Live Activity and Dynamic Island. |
| Plates and prep sets | The bar drawn the way it is loaded, plates per side, and prep sets fitted to your plates. | Plate calculator. Warm-up set calculator: Pro. | Plate and warm-up calculators are Strong PRO features. Free users can tag warm-up sets by hand. |
| Starter programs | Ten starter programs, from powerlifting to yoga, every week written out, to read in Plan before you pick one. | Routine library and split guides. Hevy Trainer (automatic programming) needs Pro. The free tier allows 4 routines. | "Some default templates as examples." The free tier allows 3 templates. |
| Exercise demos | Testing now on 4 lifts. Coming soon A demo and coaching cues for every lift. | "400+" exercises with animated demos (its comparison page says about 450). Custom exercises can take a video or GIF. | "Detailed exercise instructions with a growing library of animated videos." |
| Social | Only partners you invite. Support, no comments, on purpose. | A feed: follow, like and comment on workouts. The feed can be turned off in settings. | A share sheet for workouts and routines. |
| Android | No. iPhone and Apple Watch. | Yes, plus Wear OS. | Yes. |
| Privacy | Not on the App Store yet, so there is no label to quote. Everything you log is a file on your phone. Nothing goes to Anthropic until you turn Stack AI on. IronStack sends no usage data at all. | App Store label: no "Data Used to Track You" section shown. Linked to you: purchases, usage data (analytics), email, name, contacts. Not linked: user ID, sensitive info, diagnostics. | App Store label: no "Data Used to Track You" section shown. Linked to you (app functionality): health and fitness, purchases, email, user ID, device ID, crash data, other data. |
Their cells quote or sum up their own website, help center or App Store page, linked in each cell. App Store privacy labels are each developer's own declarations. Where their pages don't say, we leave the row out rather than guess.
What they do better
- Hevy runs on Android, Wear OS and the web as well as iPhone and Apple Watch. hevyapp.com
- Hevy has a built-in social feed with follows, likes and comments. hevyapp.com
- Hevy's library has "400+" exercises with animated demos. hevyapp.com
- Hevy Trainer generates programs with progressive overload (Pro). hevyapp.com
- Hevy pairs the lifter app with a coach product, Hevy Coach. hevycoach.com
- Strong runs on Android. strong.app
- Strong's watch app logs workouts "with or without your iPhone." apps.apple.com
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