Gym Workout App: Comparing 6 Popular Options — What to Choose in 2025

Chaotic gym visits without a plan are one of the main reasons people spin their wheels for months. The right gym workout app solves this problem: it structures your training, tracks progress, and reminds you exactly what you did in your last session. In this article you'll find an honest comparison of six popular tools so you can find the one that fits your goals.

Why You Need a Gym Workout App at All

Most people start going to the gym with a notebook — or keep everything in their head. A couple of months later they can't remember how much they lifted last week, they've missed load progression, and they feel like "progress has stalled." This is exactly where a gym fitness app becomes indispensable.

What an app gives you compared to a paper diary:

Always on hand — your phone is already in your pocket
Automatically stores the history of all your workouts
Reminds you of your working weights from the last session
Calculates your total training volume for the week
Won't get wet or get lost

The value of a structured plan is especially noticeable in the first six months. When you have a clear gym training programme with progression built in, every visit has a specific goal. You don't waste time wondering what to do at the machine — you just open the app and follow the plan.

Who benefits most from a gym workout tracker:

Beginners — no need to keep technique and the plan in your head at the same time
Self-coached athletes without a personal trainer — the app takes on the role of navigator
People with busy schedules — a workout goes faster when everything is mapped out in advance
Anyone who has hit a plateau — logging data helps you find the weak link

If you are just starting out at the gym, also read about the 5 biggest beginner mistakes at the gym — many of them are solved precisely at the level of tools and planning.

The Criteria We Used to Compare the Apps

To make the comparison objective, we evaluated each in-app training plan against a consistent set of parameters. Here is what matters when choosing a gym tool:

Ready-made training programmes — are there structured plans available out of the box, or do you need to build everything yourself?
Sets, reps, and weight log — how easy it is to record data right in the middle of a set
Exercise library with technique descriptions — availability of illustrations, video, or written instructions
Interface and speed in gym conditions — can you log a result and move to the next set in 3–5 seconds?
Customisation — ability to create your own workouts, add exercises, and edit programmes
Offline mode — does the app work without internet? (important for gyms with a poor signal)

These six criteria determine whether a tool will actually be used every workout or deleted after the second visit to the gym.

Comparison Table: 6 Gym Workout Apps

Criterion	Hevy	Strong	JEFIT	Gymbook	FitNotes	BodyFit
Ready-made programmes	✅	✅	✅	❌	❌	✅
Sets/weight log	✅	✅	✅	✅	✅	✅
Exercise library	✅	✅	✅✅	Basic	Basic	✅
Customisation	✅	✅	✅	✅	✅	✅
Offline mode	✅	✅	Partial	✅	✅	Partial
iOS	✅	✅	✅	✅	❌	✅
Android	✅	✅	✅	❌	✅	✅
Free version	✅	Limited	✅	✅	✅	✅

Quick summary:

Hevy — for those who want a community and a clean interface
Strong — for experienced athletes who need a fast, minimalist tracker
JEFIT — for those who value exercise variety and detailed analytics
Gymbook — for iOS users who prioritise design
FitNotes — for Android users who want a free, clean diary
BodyFit — for those who prefer ready-made programmes from experts

Hevy works on a simple principle: you create a workout, add exercises from the library, and log your sets as you go. The interface lets you enter weight and reps in a couple of taps — which matters when you have 60–90 seconds of rest between sets.

Key features of Hevy:

An activity feed in the style of a social network — you can see friends' and followers' workouts
Ability to "like" others' sessions and comment — creates a sense of training together
Automatic saving of each exercise's history: the app shows what you did in your last session
Simple creation of workout templates tailored to your goals
Progress charts by weight and training volume

Hevy suits those looking for the best gym app with a motivational element through community. If you want your workouts to be not only structured but also slightly "social," this is a good choice. At the same time the social element doesn't get in the way — it's easy to ignore if you just want to train.

Who we recommend it for: people who draw energy from others' activity and like sharing their progress.

Strong — A Minimalist Tracker for Experienced Athletes

Strong is built on the principle of "open it, log it, close it." There are no extra screens, news feeds, or complex menus. You pick a workout template, tap "Start," and land straight on the first exercise.

Strong's main feature is a rest timer. After logging each set, a countdown starts automatically. This simple solution keeps you disciplined and stops you from stretching a rest pause longer than needed.

Other things to know about Strong:

Workout templates are easy to copy and edit — handy if you have several variations of "leg day" or "press day"
Minimal required actions: tap "+", enter weight and reps, done
Set history is always visible — one swipe lets you check past results right in the middle of a set
The free version is limited in the number of exercises per template

Strong is one of the fastest tools in its class. For an experienced athlete who already knows the technique and simply wants to stay on top of progression, it is the ideal gym workout tracker. If you are still building a programme from scratch, it helps to first read how to put together a training programme yourself.

Who we recommend it for: experienced athletes who value speed and don't want to be distracted by extra features.

JEFIT — A Vast Library and Detailed Analytics

JEFIT stands out from competitors primarily through its exercise library — one of the largest among all fitness apps. Every exercise comes with animated technique illustrations, which is especially valuable for anyone learning new movements.

What JEFIT offers:

Ready-made training programmes broken down by goal (muscle gain, weight loss, strength) and fitness level (beginner, intermediate, advanced)
Detailed progress charts for every exercise — you can see how your working weight grows over time
Ability to build fully custom workouts from scratch
A muscle journal — a visual overview of which muscle groups you have trained this week
A community where you can find other users' programmes

JEFIT is somewhat "heavier" on the interface than Strong or Hevy, but it gives you the maximum information for analysis. If you want to understand how to track workout progress and see a detailed picture of your gains, JEFIT will give you a solid data foundation.

Who we recommend it for: those who want exercise variety, ready-made plans, and clear progress tracking all in one place.

FitNotes and Gymbook — Lightweight Alternatives for Android and iOS

These two apps are worth considering together: each occupies its own platform niche and does one thing — logs a workout quickly and without fuss.

FitNotes (Android):

A completely free workout diary with no in-app ads
The simplest interface possible: pick an exercise, enter sets, done
No ready-made programmes, no technique library — just a clean diary
CSV data export for those who want to analyse progress in spreadsheets
Works fully offline — ideal for gyms without a stable signal

Gymbook (iOS):

Focused on clean Apple-style design: minimalist, fast, no visual clutter
Quick data entry — a few taps and the set is logged
Includes a basic exercise library with the option to add your own
Suits those for whom the visual aesthetic of an app matters

The key difference between the two: FitNotes is a no-frills tool — maximum functionality at zero cost; Gymbook is about the experience of use and the pleasure of the interface, which matters particularly when you are opening the app every 2–3 minutes during a workout.

Who we recommend them for: FitNotes — Android users who don't want to pay and don't need ready-made programmes; Gymbook — iOS fans with high design standards.

BodyFit by Bodybuilding.com — Ready-Made Programmes from Experts

BodyFit is an app from one of the world's largest fitness resources. Its main strength is a huge library of ready-made programmes written by coaches and athletes with real names. These are not just generic "muscle-building programmes" — there are plans with specific authors, a philosophy, and a defined approach.

BodyFit features:

Hundreds of ready-made programmes of varying length, intensity, and focus
A built-in workout diary for logging weight and reps
An exercise library with video instructions
Articles and guides on nutrition and recovery built into the app
Offline mode does not cover all content

Limitation: a significant portion of the programmes is available by subscription only. If you simply want to keep a diary, there are cheaper tools for that.

BodyFit is best suited to those looking for not just a gym workout tracker but a full learning environment — where it matters not only to record results but also to understand why a particular programme structure produces results. If your goal is muscle gain, compare the options in the dedicated article on the best apps for gaining muscle mass.

Who we recommend it for: those who want to follow tried-and-tested author programmes and receive context alongside the workout.

FAQ

Which gym workout app is best for a beginner?

Beginners are better off starting with JEFIT or BodyFit: both offer ready-made training programmes broken down by level and exercise libraries with technique descriptions. This reduces the risk of mistakes and removes the question "what should I do today?" If you want the simplest possible start without information overload, Hevy also works well: a clean interface and minimal clutter. Read more about getting started at the gym in the article for gym beginners.

Are there free gym apps without ads?

Yes. FitNotes is completely free and ad-free (Android only). Hevy has a generous free version. JEFIT is free for basic use, but analytics and some programmes require a subscription. Strong's free version limits the number of exercises per template, which quickly becomes inconvenient.

Do these apps work without internet?

FitNotes and Strong work fully offline — everything is stored locally. Hevy and Gymbook also function without a connection for basic tasks. JEFIT and BodyFit may require a connection to download programmes and videos, although downloaded content remains available. If your gym is in a poor-signal area, it is worth checking this before making a choice.

How does an AI trainer differ from a regular tracker app?

A regular tracker logs what you do — but doesn't make decisions. An AI trainer analyses your goals, experience, health, and available equipment, then builds a personalised plan and adapts it as you go. The difference is roughly like a sat-nav versus a paper map: both show you the road, but only one recalculates the route in real time. Read more in the article AI trainer vs regular trainer.

Do you need to pay for a good gym app?

No, if all you need is a set log. FitNotes and the free versions of Hevy and JEFIT cover that at no cost. Paying makes sense if you want ready-made programmes, detailed analytics, or personalisation. Assess exactly what you need before taking out a subscription — many people overpay for features they never use.

💪 Not sure where to start? The F/AI AI trainer will ask you about your goals and limitations and put together a plan for your first week. Open F/AI →