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By the team behind Defiant. Prices and ratings from the US App Store, checked October 7, 2026. Sources
HevyBest for fast logging and training with friends
DefiantBest for a weight and rep target on every set, in rep rangesThe short answer
- Pick Hevy ifyou know how you want to progress, want a social feed, or need Android or the web.
- Pick Defiant ifyou want the app to set the weight and reps for every set and adjust them as the workout goes.
Side by side
| Hevy | Defiant | |
|---|---|---|
| Picks your next weight and reps | Shows last time; Pro adds an adaptive trainer | Yes, every set, recalculated after each set |
| Rep ranges | Yes | Yes, on any exercise |
| Programs | Your own routines, plus routines shared by others | 26 ready to run, or one built from eight questions |
| Social feed | Yes: follow friends, copy routines | No |
| More than one gym | Not described | Yes, with separate machine history per gym |
| Your data | Account-based; CSV export | No account; iPhone and your iCloud; CSV export any time |
| Price | Free tier; Pro $23.99/yr, $2.99/mo or $74.99 lifetime | Free now; Pro $69.99/yr or $9.99/mo later. First 1,000 downloads free for life |
| Platforms | iPhone, iPad, Android, web | iPhone (iOS 26.1+) |
| Apple Watch app | Yes | Yes |
Round 1: Deciding your next set
Hevy shows what you lifted last time and leaves the next step to you; its Pro tier adds an adaptive trainer. Defiant fits a strength model to each lift from your sets, reps in reserve and how much you fade between sets, then gives every set a weight and rep target inside its rep range. After each set, the next target is recalculated, so a bad first set changes the rest of the workout, and every target has a "Why this target?" explanation.
Round toDefiant
Round 2: Logging
Hevy's logging is fast, polished and battle-tested by a huge user base, with warm-ups, supersets, RPE and notes. Defiant logs the same things and adds a rest timer in the Dynamic Island, but it hasn't had years of feedback from millions of lifters yet.
Round toHevy
Round 3: Community
Hevy has a social feed where you follow friends, see their workouts and copy their routines. Defiant has no social features at all; your training stays on your phone.
Round toHevy
Round 4: Devices
Hevy runs on iPhone, iPad, Android, the web and Apple Watch. Defiant is iPhone and Apple Watch only, and needs iOS 26.1 or later.
Round toHevy
Round 5: Price
Hevy Pro is one of the cheapest subscriptions in fitness: $23.99 a year, $2.99 a month, or $74.99 for life. Defiant is free during early access and the first 1,000 downloads keep Pro free for life; after that it's $69.99 a year. Unless you're one of the first 1,000, Hevy costs less.
Round toHevy
Round 6: Everything else
Defiant keeps separate gyms with their own equipment and machine history, runs with a GPS map and splits inside any workout, and guided stretching and warm-ups with a voice coach. It doesn't need an account. Hevy's strengths are elsewhere.
Round toDefiant
Scorecard
4Hevy2Defiant- Deciding your next setDefiant
- LoggingHevy
- CommunityHevy
- DevicesHevy
- PriceHevy
- Everything elseDefiant
Rounds aren't worth the same to everyone. If the one that matters most to you went to Hevy, that's your answer.
Where Hevy wins
- A bigger, proven community and a social feed
- Android, iPad and web
- Cheaper Pro, with a lifetime option
- Years of polish
Where Defiant wins
- A weight and rep target on every set
- Targets that adjust during the workout
- Separate gyms with their own machine history
- Runs and stretching built in; no account
Switching from Hevy
- In Hevy, go to Settings → Export & Import Data → Export workouts. Save the file to Files, or AirDrop it to your iPhone.
- In Defiant, go to Settings → Your data → Import from another app, and choose the file.
- Set up your plan: answer eight questions and Defiant builds one, pick one of 26 programs, or rebuild your own routine.
- Every workout and set comes across, including warm-ups, supersets, cardio, notes and RPE (as reps in reserve).
- Hevy routines don't come across, only logged workouts.
- Importing the same file twice is safe.
More detail: switching from Hevy.
Questions
Is Defiant better than Hevy?
For deciding the weight and reps of every set, yes: that's what Defiant is built for, and Hevy leaves it to you on the free tier. For a social feed, Android or the web, or the lowest price, Hevy is the better pick.
Can I import my Hevy workouts into Defiant?
Yes. Export workouts from Hevy's settings and choose the file in Defiant under Settings → Your data → Import from another app. Every set comes across, and your first targets are based on it.
Does Defiant have a social feed like Hevy?
No. Defiant has no social features and no account; your data stays on your iPhone and in your iCloud.
Can I use both?
Yes, though you'd log twice. Some people keep Hevy for the feed and log in Defiant for the targets, then re-import Hevy history when they switch for good.
Weight and reps for every set, worked out from your own training. iPhone and Apple Watch. First 1,000 downloads get Pro free for life.
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Scan with your iPhoneSources
We make Defiant, so this is a vendor's guide, not an independent ranking; we've tried to say plainly where another app is the better pick. Defiant isn't affiliated with or endorsed by any app on this page. Spotted something out of date? Email [email protected] and we'll fix it.
