Apple Watch · App review

What's the Best Apple Watch App
for the Gym?

I've been training in the gym for about ten years. I've worn an Apple Watch through most of that time, and I've tried using every gym app that runs on it: Strong, Hevy, the built-in Workout app, and a few smaller ones nobody talks about anymore.

Every single one had the same problem: usability. They all looked fine on paper. They all fell apart at the rack.

This post is what I wish someone had written before I downloaded the tenth one. Not feature lists. Not screenshots of pretty UI. Just the answer to one question: what should a workout app on your wrist actually do, and how do you know if it's the right one?

What "good" looks like on the Watch

Forget feature comparisons for a second. Here's what should happen when you finish a set, in the right app:

You tap once. The set is logged. The rest timer starts on its own. That's it.

If you finished fewer reps than planned, you scroll the Digital Crown to adjust the number. That's the entire interaction. No keyboards, no scrolling lists of exercises, no tapping through three screens.

This sounds obvious. It is not. Most apps make you do at least three of the following: select the exercise from a list, type the weight, type the reps, mark the set complete, then start the timer manually. By the time you're done, you've forgotten what set you were even on.

The rest timer is more important than people think

The rest between sets is where most apps lose you. You finish the lift, you log it, you sit down. If you have to think about starting a timer, you'll forget. If the timer doesn't know how long you actually need, it might cut you off after 60 seconds when you're doing heavy squats and need three minutes.

The right behavior: the timer starts automatically, and the duration comes from the template you built for that workout. Warmup sets get short rests. Working sets get long ones. You don't think about it. The Watch buzzes when it's time.

It's a small thing. It changes everything.

What sounds important but doesn't matter

Apple Watch gym apps love to advertise two things you'll almost never actually use: AI form analysis and social sharing.

AI form analysis on the Watch is mostly theatre. Your wrist can't see what your back is doing during a deadlift. If your form is off, a coach, a mirror, or a friend with their phone is going to help you more than your watch will. Don't pay for it.

Social sharing is the other one. The gym isn't a social network. The people who share workouts online aren't using a wrist app to do it. They're posting from their phone afterward. A "share to feed" button on the Watch is a button you'll never press.

Both features look impressive in App Store screenshots. Neither will make your training better.

An honest thing about your phone

Most articles about Apple Watch gym apps assume you put your phone away during workouts. I don't, and you probably don't either. Mine's in my pocket. I scroll between sets. I check messages.

The point of a good Watch app isn't that it forces your phone into a locker. The point is that the Watch could do everything you need, and that's a meaningful difference. When you're mid-set, gloves on, hands chalked, the Watch is what's actually within reach. If logging on it is friction-free, you'll do it. If it isn't, you'll forget.

Use your phone for whatever you want. Just don't rely on it for the actual workout.

The one test that tells you the truth

If you're standing in the App Store right now deciding between gym apps, here's the one test I'd run. Download the app, build one template, and do one workout with it. After that workout, ask yourself a single question:

That's it. If the answer is yes, keep it. If you finished the workout and your brain felt more cluttered, not less, delete it and try another. Don't get distracted by feature lists. Don't read a hundred reviews. The Watch is on your wrist for thirty minutes during a workout, and either it helps or it doesn't.

What I built (and why I'm biased)

After years of trying every Apple Watch gym app I could find, I started building Gymbell because I wanted that one-tap flow to exist. Logging a set is one tap. The Digital Crown adjusts the reps. The rest timer auto-starts at the duration you set in the template. There's no account to create, no cloud to sign in to. Your data lives on your device and syncs through your own iCloud.

It works for every gym exercise I've ever programmed. Barbell work, dumbbell work, machines, accessories. The flow is the same. Tap. Crown. Timer. Move on.

There's a one-month free trial with full access. After that, it's $2.99/month or $39.99 once for lifetime. No tiers. No features locked behind a higher plan.

Disclosure: this post was written by the developer of Gymbell. The comparisons are based on personal use of multiple Apple Watch gym apps over years of training.