Quick Take: Which Fitness App Should You Actually Use?
I’ve been testing fitness apps for over two years now. Started because I wanted to get back into working out after a long break, and the sheer number of options was overwhelming. I downloaded probably 25 different apps, paid for subscriptions I didn’t need, and eventually narrowed things down to the ones that actually kept me coming back.
Here’s what I landed on after all that testing. Not ranked by some arbitrary scoring system – just organized by what each app does best.
| App | Best For | Price | Platforms |
|---|---|---|---|
| Strong | Weight training tracking | Free / $4.99/mo Pro | iOS, Android |
| Nike Training Club | Free guided workouts | Free | iOS, Android |
| Hevy | Social fitness + tracking | Free / $5.99/mo | iOS, Android, Web |
| Fitbod | AI-generated gym plans | $12.99/mo | iOS, Android |
| JEFIT | Exercise library + logging | Free / $6.99/mo | iOS, Android |
| Apple Fitness+ | Apple Watch users | $9.99/mo | iOS, tvOS |
| Peloton | Cardio + strength classes | $12.99/mo (app only) | iOS, Android |
| FIIT | UK-based studio workouts | Free trial / $10/mo | iOS, Android |
Strong – Best for People Who Lift Weights
If you do any kind of resistance training, Strong is probably the app you want. I’ve tried at least 8 different workout loggers, and this one has the cleanest interface by far.
The free version gives you 3 custom routines. That’s enough for most people running a push/pull/legs split or an upper/lower program. You tap the exercise, enter your weight and reps, and move on. No bloat, no social feeds, no upsells shoved in your face every 10 seconds.
The Pro version ($4.99/month) unlocks unlimited routines and some extra features like Apple Watch integration and workout history exports. I paid for it after about a month because I run 5 different programs depending on my schedule.
What I like about Strong
- Rest timer between sets with configurable defaults per exercise
- Progressive overload tracking – you can see your volume going up week over week
- Super clean UI with zero learning curve
- Apple Watch app that actually works (rare for fitness apps)
What could be better
- No built-in workout programs. You’re building everything yourself.
- The free tier is pretty limited at 3 routines
- No video demos for exercises (you’ll need to look those up separately)
Honestly, if you already know what exercises to do and just need a clean way to track them, Strong is hard to beat. I’ve been using it for 14 months and haven’t looked back.
Nike Training Club – Best Free Option (And It’s Not Close)
Nike made their entire premium library free back in 2022, and it’s still free in 2026. That gives you access to hundreds of guided workouts – bodyweight stuff, dumbbell routines, yoga, mobility work, HIIT sessions.
The production quality is legitimately high. Professional trainers walk you through every exercise with clear form cues. Workouts range from 5 minutes to 60 minutes, and you can filter by equipment, muscle group, or difficulty.
I used NTC exclusively for about 4 months when I didn’t have gym access. The bodyweight programs are solid. Not quite as intense as what you’d get from a dedicated calisthenics program, but way better than random YouTube videos.
Where NTC falls short
- Weight tracking is basically nonexistent. You can log that you did a workout, but you can’t track sets, reps, or weight in any meaningful way.
- The recommendation algorithm is pretty generic
- Some of the multi-week programs feel repetitive by week 3 or 4
For the price (free), it’s the best deal in fitness apps. Period. If you’re someone who wants to be told what to do and just follow along, NTC delivers.
Hevy – Best for Social Motivation
Hevy is what you’d get if Instagram and Strong had a baby. It’s a workout tracker at its core, but the social features are what set it apart. You can follow friends, share workouts, and see what other people in your gym are doing.
The tracking is comparable to Strong – maybe slightly less polished, but the free tier is more generous. You get unlimited routines without paying, which is a big deal if you don’t want another subscription.
I know a lot of people in the r/fitness community switched to Hevy specifically because of the unlimited free routines. The social feed can be motivating if you have friends on the platform, though personally I found myself spending too much time scrolling instead of, you know, actually lifting.
Standout features
- Unlimited routines on the free plan
- Web app for reviewing workout history on desktop
- Import from Strong (one-tap migration)
- Body measurements tracking with progress photos
Downsides
- The social feed can become a distraction
- Some users report sync issues between devices
- Pro version is $5.99/mo for features that probably should be free (like warm-up sets)
Fitbod – Best AI-Powered Workout Plans
Fitbod does something genuinely useful that most fitness apps don’t: it generates workouts based on your available equipment, recovery status, and training history. Tell it you have access to dumbbells and a bench, and it’ll build a full program around that. Go to a fully equipped gym the next day, and the workout adjusts.
The algorithm tracks which muscles are fresh and which are still recovering, then programs accordingly. After about two weeks of consistent use, the recommendations got noticeably better. By week four, it was suggesting workout splits that made sense for my goals.
At $12.99/month, it’s one of the pricier options on this list. That said, if you don’t have the knowledge to program your own workouts and don’t want to hire a personal trainer ($50-150/hour), the math works out.
Worth noting
- Exercise substitutions are smart – it won’t suggest barbell squats if you only have resistance bands
- Integration with Apple Health and Google Fit for recovery tracking
- The exercise demo videos are high quality with multiple camera angles
Where it struggles
- Price. $12.99/month for a workout app feels steep.
- The AI occasionally suggests weird exercise combos early on (gets better over time)
- Not ideal for people following a specific program like Starting Strength or nSuns
JEFIT – Best Exercise Library
JEFIT has been around since 2010. Not the flashiest app on this list, but it has the most comprehensive exercise database I’ve seen – over 1,400 exercises with animated demonstrations.
The workout logger works fine. Not as smooth as Strong, but functional. Where JEFIT really shines is if you’re someone who frequently needs to look up exercises or substitute movements. The search and filter system is thorough.
The free version shows ads and limits some features, but it’s usable. The Elite plan at $6.99/month removes ads and unlocks advanced analytics.
Best features
- Massive exercise database with clear animated guides
- Community-created workout plans you can import
- Detailed body stats tracking with graphs
- Rest timer with plate calculator
Not so great
- The UI feels dated compared to Strong or Hevy
- Ads in the free version are aggressive
- Sync between devices isn’t always reliable
Apple Fitness+ – Best for Apple Watch Owners
Look, I’m going to be direct here: Apple Fitness+ is only worth it if you own an Apple Watch. The entire experience is built around real-time metrics showing up on screen during workouts. Your heart rate, calories burned, activity rings – all synced live.
The workout library covers everything: strength, HIIT, yoga, cycling, rowing, dance, meditation. Production quality is what you’d expect from Apple – polished, well-lit studios, professional trainers, good music curation.
New workouts drop every week. The “Time to Walk” audio series is genuinely good if you do a lot of walking. And the integration with Apple Music means you can save songs from workouts to your library mid-session.
The catch
- $9.99/month with no meaningful free tier
- Basically useless without an Apple Watch
- No Android version. Apple ecosystem lock-in at its finest.
- Strength workouts don’t track weight/reps automatically
If you’re deep in the Apple ecosystem and already have a Watch, it’s a solid pick. Otherwise, skip it.
Peloton App – Best Cardio and Strength Classes
You don’t need a Peloton bike or tread to use the Peloton app. The app-only membership at $12.99/month gives you access to thousands of on-demand classes across cardio, strength, yoga, stretching, outdoor running, and more.
The instructors are what keep people coming back. Peloton invested heavily in building a roster of charismatic trainers, and it shows. The strength classes in particular have gotten significantly better over the past year – they used to be an afterthought, but now there are dedicated powerlifting and hypertrophy programs.
I used Peloton’s app for a 3-month stretch when I was traveling and only had hotel gyms. The 20-minute full-body strength classes were perfect for those situations. The outdoor running audio classes are also underrated – way better than just putting on a playlist.
Worth the money?
- Yes if you prefer instructor-led classes and need variety
- No if you want detailed tracking or custom programming
- The free tier gives you a very limited selection – not really enough to evaluate
FIIT – Best for Studio-Style Home Workouts
FIIT is less well-known in the US but has a strong following in the UK. The app offers structured training plans with video classes that range from 10 to 60 minutes. What makes it different from Peloton or Apple Fitness+ is the emphasis on progressive plans – you don’t just pick random classes, you follow a structured program that builds over weeks.
The heart rate tracking integration (works with most Bluetooth HR monitors) adds a competitive element. You can see your effort score compared to other users who’ve done the same workout.
I tested FIIT for about 6 weeks. The “Sweat and Tone” plan was genuinely challenging and well-programmed. The trainers are energetic without being annoying, which is harder to find than you’d think.
Pros
- Structured multi-week programs (not just random classes)
- Heart rate zone training with compatible monitors
- Less crowded market position means the community is tight-knit
Cons
- Smaller library than Peloton or Apple Fitness+
- Some content feels UK-centric
- No weight tracking for strength exercises
How I Picked These Apps
I tested each app for a minimum of two weeks. For the ones I liked, I extended that to a month or more. Here’s what I focused on:
- Does it actually help me work out? Some apps are so busy with features that they get in the way of training.
- Is the free version usable? Not “usable” as in technically functional but so limited you’re forced to upgrade. Actually usable.
- Tracking accuracy. If I log 3 sets of 8 at 185 lbs, that data needs to be there tomorrow. Sync issues are a dealbreaker.
- Does it respect my time? Minimal loading screens, no upsell popups mid-workout, no mandatory onboarding that takes 15 minutes.
I didn’t include apps that are primarily habit trackers or step counters. This list is for apps that help you actually train – whether that’s in a gym, at home, or outdoors.
Gym Tracker vs. Guided Workout App: Which Type Do You Need?
This is the first question to answer before downloading anything. They’re two fundamentally different categories:
Gym trackers (Strong, Hevy, JEFIT) assume you know what to do. You build your own routines, log your own weights, and the app tracks your progress. Think of them as a digital notebook.
Guided workout apps (NTC, Peloton, Apple Fitness+, FIIT) tell you what to do. A trainer walks you through each exercise, sets the pace, and manages your rest periods.
If you’ve been lifting for a year or more and have a program you follow, go with a tracker. If you’re newer to fitness or prefer being coached through workouts, go guided. Some people use both – a tracker for gym sessions and a guided app for home workouts or cardio. That’s what I do now, using Strong at the gym and Peloton at home.
For more productivity tools and calendar apps to organize your training schedule, we have dedicated guides.
FAQ
What’s the best free fitness app in 2026?
Nike Training Club. It’s completely free with hundreds of guided workouts, no hidden paywalls. For gym tracking specifically, Hevy’s free tier is the most generous with unlimited routines.
Are fitness apps worth paying for?
Depends on what you need. Free options like NTC and Hevy’s free plan cover most people. Paid apps like Fitbod make sense if you want AI-generated programming. Peloton and Apple Fitness+ justify their cost if you actually use the classes regularly – but most people use them heavily for 2 months and then forget they’re paying.
Can a fitness app replace a personal trainer?
For general fitness, yes. Apps like Fitbod can program workouts that are 80% as good as what a decent trainer would write. But if you have specific goals (competing in powerlifting, rehabbing an injury), a human trainer who can watch your form is still worth the money.
Which fitness app has the best exercise demonstrations?
JEFIT has the largest library with over 1,400 animated exercises. Fitbod’s video demos are higher quality but cover fewer movements. Nike Training Club shows form cues during guided workouts but doesn’t have a standalone exercise library.
Do I need an Apple Watch for fitness apps?
Only for Apple Fitness+, which is pretty much built around the Watch experience. Every other app on this list works fine without one. Strong and Hevy have optional Watch apps that are convenient for logging sets without pulling out your phone, but they’re not required.