Best Workout App: Criteria to Choose the Right One

There are hundreds of workout apps, and most lists simply rank them by popularity. That does not help much, because the best app for you depends on how you train. Someone who follows a program written by a coach needs different things from someone who builds their own routine, and both differ from a person who just wants a log.

This guide does not rank brands. It gives you the criteria that actually matter, explains why each one matters, and ends with a short test you can run before you commit to any app. The criteria stay useful even when the apps change.

Start with what you need the app to do

Write down the one or two jobs you want the app to do. For most people they are one of these: follow a ready-made program, build and edit your own plan, log every set quickly, or see progress over time. An app that does many things badly is worse than one that does your main job well.

Also think about where you train. If you train in a basement gym or a place with a weak signal, offline use is not optional. If you train at home with a few dumbbells, a large library of machine exercises will not help you. Match the app to your real situation, not to the screenshots.

Logging speed

The most important feature of a training app is how fast you can record a set. If logging takes too many taps, you will skip it on tired days, and a log with gaps is much less useful. Count the taps needed to record weight and repetitions for one set, and check how the app handles the next set.

Good apps copy the previous values so that you only change what is different. They let you adjust the weight in small steps, because jumping from one weight to the next in large steps makes progress harder. They also let you fix a mistake without losing the rest of the session.

Showing the last session

When you start an exercise, the app should show what you did last time. That one piece of information tells you what to try today: add a repetition, add a small amount of weight or repeat the same load. Without it you are guessing, or you are scrolling through old workouts between sets.

This is the core of progressive overload. If you want to understand how to use that information, read our guide on progressive overload.

Progression support

Some apps only record. Others suggest what to do next, for example when it is time to increase the weight. Suggestions can help beginners, but they should be easy to ignore, because you know when you slept badly or felt pain. Be careful with apps that push you to increase the load every session.

Check how the app handles rest as well. A rest timer that starts after each set and signals the end quietly saves you from using your phone for other things between sets.

Offline use and speed

A gym is not always a place with a good signal. Check whether the app opens quickly, works without internet and syncs your data later. Loading screens between sets are annoying and tend to make people stop using an app. Our article on why offline workout apps matter explains this in more detail.

Exercise library and flexibility

A good library has clear names, a short description and the option to add your own exercises. The ability to substitute an exercise when a machine is busy is also very useful. Check whether you can create routines freely or whether you are locked into fixed programs.

• Can you add your own exercises and notes?
• Can you swap an exercise in the middle of a session?
• Can you edit a routine without losing the history?

Your data: history, export and ownership

Your training history becomes more valuable with time. Before you use an app for months, check whether you can export your data in a common format, whether you can delete your account and what happens to your history if you stop paying. An app that traps your data makes it hard to switch later.

Also check what the app collects. Training apps often store body weight, photos or health data. Read the privacy information and share only what you are comfortable with.

Cost: free tiers and subscriptions

Look at what is free and what is paid. A free tier that lets you log workouts and see recent history may be enough for many people. Paid plans often add things like unlimited routines, advanced charts or export. Compare the price with how often you would really use those features, and check whether the plan renews automatically.

Wearables and extras

Connection with a watch can be useful for rest timers, but it is not essential. If it matters to you, read the product details and test it before paying, and do not assume that an app works with a specific watch. Our guide to tracking sets with a smartwatch can help you decide whether you need it.

Practical example: a one week test

Before you commit, test the app for a week with your real routine. Use the same exercises you normally do and record every set.

• Day 1: create or import your routine and record the whole session. Note how many taps a set takes.
• Day 2 to 3: train again and check that the last session appears when you start each exercise.
• Day 4: train without internet and see what happens when the connection returns.
• Day 5: change an exercise in the middle of a session and edit a routine.
• Day 7: look at your history and try the export option.

If the app passes this week without frustrating you, it is probably a good fit.

Common mistakes

• Choosing by popularity: a popular app may not fit how you train.
• Ignoring logging speed: if it takes too long, you will stop using it.
• Not checking data export: switching later becomes painful.
• Paying before testing: always test the free version with a real week of training.
• Expecting the app to train for you: an app records and suggests, but you decide.

Next step

Write your one or two main jobs, then test one or two apps for a week using the plan above. In eBolts you can adjust the weight in steps as small as 1 kg, see what you did last time for each exercise, and use the app offline with syncing afterwards. You can try it with a free account and compare it with any other app using the same test.