Best iOS Weight Lifting App for iPhone & Apple Watch (2026)

Musklr is the best iOS app for lifting weights if your priority is logging sets fast on iPhone and Apple Watch: two taps per set, 2,000+ exercises, a live muscle heatmap, and Pro at about $2 a month. Run a whole workout from your wrist with live heart rate, and every set logs offline whether you sign in or not.

Most lifters want the same few things from a tracking app: log a set without slowing down, never lose a session, and see whether the numbers are going up. We compared the five most popular iOS lifting apps side by side: Musklr, Strong, Hevy, Jefit and Fitbod. The comparison covers the seven things that actually decide which one you keep: price, exercise library, Apple Watch support, offline logging, ads, muscle heatmaps and built-in programs.

For the job most people are really asking about, which is registering sets quickly on an iPhone or Apple Watch, Musklr came out on top. It has the largest exercise library, a live muscle heatmap, two-tap logging and a full Apple Watch app, and full features run about $2 a month.

What are the best iPhone workout tracker apps?

Green best, amber middle, red weakest in each row; grey = not documented.

Prices and features verified 1 July 2026; subscriptions vary by region. Musklr Pro is $2/mo billed annually; Hevy's Pro price is approximate. "Not published" means the vendor doesn't list an exercise count. "Not stated" means offline use isn't documented on the vendor's own pages (it may still work). Hevy shows muscle-group volume charts rather than a body heatmap.

How does Musklr compare with Strong, Hevy, Jefit and Fitbod?

Musklr: fastest logging, best value

Musklr is built for one job: registering sets as fast as possible, on iPhone and Apple Watch. It has the largest exercise library here, a live muscle heatmap, live heart rate on the watch, and it logs offline whether you sign in or not. It's free to use for as long as you like, and Pro is about $2 a month for unlimited routines and cloud sync, or $99 once if you would rather not subscribe at all. If you want the quickest, most complete way to log your own training, it's our pick.

See what Musklr does →

Strong: a minimal logger, three routines free

Strong is a minimal logger with an Apple Watch app. The free tier caps you at three routines, and the moment you want more, Pro is $4.99/mo (with a one-time lifetime option), more than double Musklr's roughly $2 a month for full features.

Hevy: a 14M+ athlete community and a routine planner

Like the others, Hevy is freemium, with 14M+ athletes and a routine planner. Musklr shares programs too: follow a curated one, or explore what other lifters are running and download theirs. Hevy leans on muscle-volume charts rather than a live heatmap, and it doesn't publish an exercise count, so there's nothing to weigh against Musklr's published 2,000+ movements.

Jefit: 1,400+ exercises and expert-built plans

Jefit is the one for data lovers: 1,400+ exercises with guided instructions, expert-built plans, a muscle-recovery breakdown and detailed progress analytics. The trade-off is ads on the free tier, which Elite ($12.99/mo) removes.

Fitbod: automated programming, no permanent free tier

Fitbod's algorithm builds and adapts each session around your recovery. There's no permanent free tier, just a short trial, then from $12.99/mo. With Musklr you can follow a curated program, explore what other lifters are running and download theirs, or bring your own, and full features are about $2 a month.

Why is Musklr best for logging workouts?

Musklr is built around one job, registering sets as fast as possible, and it brings the tools of a heavier app to that job without slowing down. That combination is why it's our overall pick.

• Largest published library. 2,000+ movements with video instructions. Jefit lists 1,400+, Fitbod 1,000+, and Strong and Hevy don't publish a count.
• Two taps per set. The whole app is tuned so the common case, logging the set you just did, is the fastest path on both iPhone and Watch.
• The best Apple Watch app here. Run a whole workout from your wrist, with live heart rate and a Live Activity that keeps the session a glance away. It's a full app, not a stripped-down companion, and it's included free.
• A live muscle heatmap while you log. It updates during the session rather than in a report you open later. Strong, Jefit and Fitbod have heatmap or recovery views too, but Musklr's is live.
• A full logging toolkit. Rest timers with haptics, estimated 1RM, volume and RPE tracking, and dropsets. It has the depth of an analytics app but keeps logging quick.
• Offline-first. No signal in the basement gym? Every set still logs and syncs once you're back online.
• Affordable. Full features cost about $2 a month billed annually, a fraction of the $12.99 a month Jefit or Fitbod charge.

And the free tier is not a trial that runs out. You can log your training free, forever, fully offline, without signing in, and your data stays on your device. Pro is for serious lifters who want more: unlimited routines, your full training history, and cloud sync and backup across devices.

And Musklr won't auto-generate your workouts. If you want an algorithm to program for you, that's Fitbod. But if you want the fastest, most complete way to log training you've planned yourself, Musklr is it.

See everything Musklr does →

How were the five most popular iOS lifting apps compared?

We compared each app on the seven decisions lifters actually weigh. The figures come from primary sources, mainly App Store listings and each app's own site, checked on 1 July 2026, and we kept the per-figure sources on file. Where a vendor doesn't publish a number, such as an exercise count, or a behaviour, such as offline logging, we label it rather than guess.

Musklr is newly launched on the App Store, so its community is smaller than the established apps here. Prices and tiers change and vary by region, so confirm the current price in the App Store before you subscribe.

Which is the best iOS app for lifting weights?

For the core job, logging sets fast on iPhone and Apple Watch, one app comes out on top:

• Best overall for logging lifts: Musklr. The fastest way to register sets on iPhone and Apple Watch, with the largest exercise library, a live muscle heatmap and full features for about $2 a month.
• Cheapest full-feature tier: Musklr. About $2 a month for everything, against $4.99 for Strong, roughly $3 for Hevy and $12.99 for Jefit and Fitbod.

For most lifters, the ones who know their plan and just want to log it quickly, Musklr is our pick.

Frequently asked questions

Is there a free lifting app for iPhone?

Yes. Musklr is free to use for as long as you like, with no ads, and every set logs offline whether you sign in or not. The free tier covers one program and two workouts. Pro is optional at about $2 a month, or $99 once if you would rather not subscribe.

Which lifting app works on Apple Watch?

All five have Apple Watch apps, and Musklr's is the most complete. It adds live heart rate and a Live Activity, and lets you run a whole session from your wrist, all included free. It is a full app rather than a stripped-down companion, and for wrist-first logging it is our pick.

Strong vs Hevy vs Musklr: which is better?

For logging sets fast on iPhone and Apple Watch, Musklr. Two taps record a set, it works offline whether you sign in or not, and it stays ad-free even on the free tier. Musklr publishes 2,000+ exercises, shows a live muscle heatmap while you log, and runs a whole workout from the wrist with live heart rate. Full features are about $2 a month, against Strong's $4.99 and Hevy's roughly $3.

Do workout apps have ads?

Some do. Musklr does not, on any tier: no ads in the free app and none in Pro. Where ads do appear it is usually on a free tier, so check the App Store listing before you install.

Which workout app has the most exercises?

Of the apps that publish a number, Musklr leads with 2,000+, ahead of Jefit's 1,400+ and Fitbod's 1,000+. Strong and Hevy don't publish an official exercise count, so we don't rank them here.

What's the best app to log gym sets on iPhone?

Musklr. Two taps record a set, it works offline, and logging is the fastest path on both iPhone and Apple Watch. Rest timers with haptics, estimated 1RM, volume and RPE tracking and dropsets are all there too, with the depth of an analytics app and none of the slowdown.

Do iPhone workout apps work offline at the gym?

Musklr is offline-first, so every set logs without a connection and syncs later. Strong also supports offline logging. Hevy, Jefit and Fitbod don't clearly document offline behaviour, so we don't claim it either way. Check before relying on it if your gym has no signal.

Which workout app has a muscle heatmap?

Musklr does, and its version updates live as you log rather than in a report you open later. That is what sets it apart: you can see what the session has covered while you are still in it.