The Best Fitness Apps for Android, iOS and Apple Watch in 2025

Most people do not need a fancy AI coach to get stronger. They need a place to log sets, a way to repeat good sessions, and enough structure to keep progressive overload moving. The best free strength training apps on this list all solve those basics, but they do it in different ways. Some are built for detailed barbell programming, some are better as no-drama logs, and some are ideal if you train at home or want bodyweight work too. If you want a refresher on movement quality before choosing an app, Core Principles & Techniques for Every Lifter is a useful companion.

What makes a good free strength training app?

A good free app should do more than store workouts. At minimum, it should make logging fast, support progressive overload, and show your history clearly enough that you can tell whether your training is actually improving. If it also gives you rest timers, 1RM estimates, RPE or RIR logging, plate calculators, and structured templates, that is even better. For a deeper training primer, Optimize Your Training is a helpful next stop.

Look for these basics before you download anything:

• Fast logging so you can enter weight, reps, sets, and notes without breaking your flow.

• Progress tracking such as PRs, graphs, training volume, or estimated 1RMs.

• Program support if you prefer 5x5, PPL, upper/lower, or a coached plan.

• Free-tier limits that still let you train normally, not just sample the app.

• Platform fit so the app works on your phone, watch, or desktop.

Quick comparison of the best free strength training apps

1. Boostcamp

Boostcamp is the strongest all-around free option if you want a real strength training app instead of a stripped-down log. Its free tier includes 11,000+ programs, most of the 130+ coach-designed library, full set, rep, and weight tracking, RPE/RIR fields, a plate calculator, rest timers, and basic PR tracking. Boostcamp also says the free tier is the actual product, not a limited demo. (boostcamp.app)

Best for: lifters who want a program plus a tracker in one place.

Why it stands out: Boostcamp is one of the few free apps that gives you both structure and logging without forcing you into a paywall first. It is especially useful if you want barbell progress, auto-adjusted loading, and a simple way to follow a multi-week plan. (boostcamp.app)

Watch-outs: Pro adds advanced analytics, exclusive coach programs, and unlimited custom program creation, so power users may eventually want to upgrade. (boostcamp.app)

If you want to think more deeply about programming and progression, Setgraph Training Guide makes a good companion read.

2. StrengthLog

StrengthLog is one of the cleanest free logging apps for lifters. The company says the free version has no ads, unlimited workouts, basic training stats, 450+ exercises, automatic set timers, 1RM calculators, workout planning, and the ability to create or follow basic training programs. It also supports special set types like supersets, circuits, AMRAP, and EMOM, which makes it useful for more than just straight sets and reps. (strengthlog.com)

Best for: lifters who want a simple interface with enough depth to support real training.

Why it stands out: StrengthLog feels purpose-built for strength work. It covers the basics well, but it also gives you data that matters, such as personal records, history, goals, and an exercise library with instructions. (strengthlog.com)

Watch-outs: advanced logging with RPE/RiR is premium, so if that is central to your programming, you will need the paid tier. (strengthlog.com)

If you like practical, no-fluff training reading, Fitness & Workout Tips is a useful place to keep exploring.

3. JEFIT

JEFIT sits in a sweet spot between a simple tracker and a more structured training platform. The company says the app is free to start and ad-free, and it includes 1,500+ exercises, templates like 5x5, PPL, and full-body, plus volume, PR, 1RM, and muscle-group tracking. It also works across mobile, watch, and web, which is handy if you like checking your plan on different devices. (jefit.com)

Best for: lifters who want ready-made templates and a larger exercise database.

Why it stands out: JEFIT is a strong pick if you like seeing progress in charts and want a bigger planning system than a basic log book. It is one of the more complete free options for people who like structure but still want room to build their own routine. (jefit.com)

Watch-outs: the deeper analytics and some premium tools are outside the free tier, so casual users may not need everything it offers. (jefit.com)

4. Hevy

Hevy is the polished, social-first choice on this list. The App Store says it is free and ad-free on iPhone, iPad, Apple Watch, and iMessage, and the app includes exercise videos, custom exercises, unlimited routines, automatic rest timers, muscle-group graphs, 1RM calculation, and lift progression charts. It is also built around sharing and comparing workouts with other users. (apps.apple.com)

Best for: iPhone users who want a clean interface and social motivation.

Why it stands out: Hevy is easy to like if you care about the experience as much as the numbers. The design is polished, the lifting visuals are helpful, and the social layer can make training feel more engaging. (apps.apple.com)

Watch-outs: the free version is limited to 4 routines, 7 custom exercises, and shorter stats history, so heavy users may hit the ceiling faster than they expect. (help.hevyapp.com)

If you want to compare how lifters talk about apps in real life, Setgraph App Reviews (2025) is a useful read.

5. Caliber

Caliber is a good free pick if you want more guidance without jumping straight into paid coaching. The company presents it as a top-rated free gym tracker, and its app page highlights 100+ strength and mobility plans, 700+ exercises, custom exercises, supersets, adjustable rest timers, fast logging, workout history, and progress analytics such as Strength Score, strength balance, and 1RM charts. (caliberstrong.com)

Best for: beginners and intermediate lifters who want structure plus feedback.

Why it stands out: Caliber gives you a lot of training support for a free app. The combination of plans, logging, and analytics makes it appealing if you want the app to do more of the thinking for you. (caliberstrong.com)

Watch-outs: if you want a pure workout journal with almost no extra coaching flavor, another app on this list may feel simpler. (caliberstrong.com)

6. FitNotes

FitNotes is the simplest choice on Android. Its site says the app is only available on Android, free to use, and no ads ever. The help docs also show that it supports progress tracking, PRs, CSV export, workout groups, and a 1RM calculator, which is enough for most lifters who just want to log training and move on. (fitnotesapp.com)

Best for: Android users who want a lightweight workout log.

Why it stands out: FitNotes strips away the fluff. If you do not want social feeds, subscription prompts, or a busy interface, it is easy to see why this app has such a loyal following. (fitnotesapp.com)

Watch-outs: it is Android-only, so iPhone users need a different option. (fitnotesapp.com)

7. Fitloop

Fitloop is the best free option if your strength work is mostly bodyweight or mixed with gym lifts. Its free plan includes a guided calisthenics path, built-in programs, workout logging, a 1,000+ exercise library, progress tracking, a streak calendar, and no ads. Fitloop also says it can handle barbell, dumbbell, cable, machine, and bodyweight exercises in one app, so it works well for people who split time between home and the gym. (fitloop.app)

Best for: bodyweight training, home strength work, and mixed training styles.

Why it stands out: Fitloop is a strong free pick if you want a guided path but do not want to pay for it. The built-in programs make it easier to start, and the exercise library is broad enough for long-term use. (fitloop.app)

Watch-outs: if your main priority is barbell logging with deeper analytics, Boostcamp, StrengthLog, or JEFIT may fit better. (boostcamp.app)

How to choose the right one for you

The best free strength training app depends on how you train, not just which interface looks nicest.

• Choose Boostcamp if you want the strongest mix of free programming, tracking, RPE/RIR, and progression tools. (boostcamp.app)

• Choose StrengthLog if you want a clean log that still feels serious about strength training. (strengthlog.com)

• Choose JEFIT if you like templates, exercise variety, and multi-device support. (jefit.com)

• Choose Hevy if you want polished tracking and a social layer on iPhone or Apple Watch. (apps.apple.com)

• Choose Caliber if you want free guidance, workout plans, and more coaching-style support. (caliberstrong.com)

• Choose FitNotes if you want an ultra-simple Android log with no ads. (fitnotesapp.com)

• Choose Fitloop if you want bodyweight or home strength training with built-in programs. (fitloop.app)

If you want more context on building a routine that actually progresses, Setgraph Training Guide is a solid place to keep learning.

FAQ

Are free strength training apps good enough?

Yes, for most lifters they are. A good free app can handle logging, progression, and basic planning without much compromise. The main question is whether the free tier covers the features you actually use, such as custom routines, history length, or advanced analytics. (boostcamp.app)

What features matter most for strength training?

The most useful features are fast set logging, PR tracking, rest timers, estimated 1RMs, and a way to repeat or progress workouts cleanly. If you follow a specific method, RPE/RIR and plate calculators are especially helpful. (boostcamp.app)

Which app is best for beginners?

Caliber and Boostcamp are the easiest starting points if you want more structure, while FitNotes is a good low-friction option if you already know what you want to do and just need a log. (caliberstrong.com)

Which app is best for iPhone users?

Hevy is the most polished iPhone-first option in this list, while Boostcamp, StrengthLog, Caliber, and Fitloop also support iOS. (apps.apple.com)

Which app is best for Android?

FitNotes is the simplest Android-only pick, but Boostcamp, StrengthLog, Caliber, and Fitloop are also available on Android. (fitnotesapp.com)

If you want one final place to keep exploring, Setgraph App: Insights, Tips & Training Guides is a handy hub.

Final take

If you want the best free strength training app overall, start with Boostcamp. If you want a simple log, choose FitNotes on Android or StrengthLog if you want a cleaner all-around tracker. If you care about programming, JEFIT and Caliber are the best places to look. And if your training is mostly bodyweight or home-based, Fitloop deserves a close look. The right app is the one you will actually open consistently, because consistency still beats fancy features every time. (boostcamp.app)

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