Why Strong Fitness Tracker Beats Fitbit for Gym Buffs

⚡ Last tested: April 2026  |  Independent review — not sponsored

If you spend more time under a barbell than on a treadmill, you already know that most fitness apps are built for runners, not lifters. Strong Fitness Tracker changes that entirely. We tested Strong Fitness Tracker over several weeks across a range of gym sessions — from powerlifting to hypertrophy training to general strength work — and the results were clear: this is one of the most focused, no-nonsense workout logging apps available right now. While Fitbit and Garmin chase step counts and sleep scores, Strong keeps its attention firmly on what matters to gym-goers: sets, reps, weights, and progressive overload. In this Strong Fitness Tracker review, we’ll break down exactly what it does well, where it falls short, and whether it’s worth your money as a UK-based lifter. Spoiler: if you train with weights regularly, it probably is.

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What Is Strong Fitness Tracker?

Strong Fitness Tracker is a dedicated gym workout logging app available on iOS and Android. Unlike general fitness platforms such as Fitbit or Apple Health, Strong is built exclusively around resistance training — tracking sets, reps, weight lifted, rest periods, and personal records with impressive precision. Developed by Strong App, Inc., the app has built a loyal following among powerlifters, bodybuilders, and everyday gym-goers who want a reliable digital training journal.

At its core, Strong lets you build fully customisable workout plans, log every exercise in real time, and view detailed progress graphs over time. You can browse a built-in exercise library containing hundreds of movements, complete with muscle group categorisation, or add your own custom exercises. The app also features a built-in rest timer, one-rep max calculator, and workout history that never disappears. Whether you follow a Push/Pull/Legs split, a 5/3/1 programme, or something entirely bespoke, Strong accommodates it cleanly and without fuss.

It’s a mobile-first experience that keeps things simple — and that simplicity is its greatest strength.

Key Features

📋 Detailed Set, Rep, and Weight Logging

Strong’s bread and butter is its logging interface. Each exercise entry lets you record multiple sets with weight and reps, and the app intelligently pre-fills your previous session’s data so you’re never starting from scratch. You can log in kilograms or pounds, switch between them at any time, and add notes to individual sets. Warm-up sets can be marked separately so they don’t skew your progress data. It’s the kind of granular detail that general fitness apps simply don’t offer.

📈 Progress Tracking and Personal Records

Every workout you log feeds into Strong’s progress charts, which display your estimated one-rep max, total volume lifted, and maximum weight over time for any exercise. The app automatically flags personal records during your workout — a small but genuinely motivating touch. For anyone following progressive overload principles, being able to visualise upward trends on your squat or bench press over months is genuinely useful, not just a gimmick.

🗓️ Customisable Workout Plans and Templates

Strong allows you to create as many workout templates as you like, organising them however suits your training style. You can build full weekly programmes, reorder exercises via drag-and-drop, and duplicate or edit templates quickly. The app also offers a curated selection of pre-built programmes — including popular strength protocols — which is handy if you’re new to structured training or want a solid starting point.

⏱️ Built-In Rest Timer with Notifications

A rest timer is built directly into the logging flow, so you don’t need to switch apps between sets. You can set different rest durations per exercise, and the app sends a notification when your rest period is up — even when your phone screen is locked. It’s a small feature that makes a genuine practical difference when you’re mid-session and trying to stay in the zone.

How Strong Fitness Tracker Compares

Feature	Strong	Fitbit App	Hevy
Set / Rep / Weight Logging	✅	❌	✅
Personal Record Detection	✅	❌	✅
Customisable Workout Plans	✅	❌	✅
Built-In Rest Timer	✅	❌	✅
All-Day Activity Tracking	❌	✅	❌
Sleep Tracking	❌	✅	❌
Social / Friend Features	❌	✅	✅
Free Tier Available	✅	✅	✅

Pros and Cons

Pricing

Strong operates on a freemium model with a fairly clear distinction between what you get for free and what requires a paid subscription.

Plan	Price	What’s Included
Free	£0	Up to 3 workout routines, full logging history, basic progress tracking
Strong Pro (Monthly)	Approx. £4.99/month	Unlimited routines, advanced analytics, custom exercise videos, plate calculator, no ads
Strong Pro (Annual)	Approx. £29.99/year	All Pro features at a significant saving over monthly billing

The free tier is genuinely usable if you follow a single training programme and don’t need unlimited templates. However, serious gym-goers running multiple splits or programme variations will find the three-routine cap frustrating quickly. The annual Pro plan represents decent value — less than the cost of a single personal training session for a full year of the complete feature set.

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Who Is Strong Fitness Tracker Best For?

Perfect For:

• Powerlifters and strength athletes who need precise set, rep, and weight tracking with one-rep max estimates
• Bodybuilders and hypertrophy-focused trainers running multiple exercise variations and needing clear volume tracking
• Intermediate gym-goers ready to move on from pen-and-paper logs and wanting reliable digital records
• Personal trainers who want a quick, no-fuss way to log client sessions in real time
• Programme followers running established protocols like 5/3/1, GZCLP, or PPL who want to build templates once and use them long term

Not Ideal For:

• Runners and cyclists who need GPS tracking, route mapping, or cardio-specific analytics
• All-day activity trackers who want step counts, calories burned, and heart rate monitoring throughout the day
• Beginners who need guided coaching — Strong assumes you already know what exercises you want to do
• Anyone who primarily exercises at home with no equipment — the app’s exercise library skews heavily towards gym-based, equipment-focused movements

Our Verdict

After weeks of thorough testing, our Strong Fitness Tracker review conclusion is straightforward: this is the best dedicated workout logging app available for UK gym-goers who train with weights. It doesn’t try to be everything to everyone — and that restraint is exactly why it excels. The logging experience is faster and more intuitive than any competitor we tested, the progress data is genuinely insightful, and at less than £30 per year for the Pro plan, it’s outstanding value for any serious lifter. The lack of cardio features and the limited free tier are real drawbacks, but if strength training is your focus, neither of those things will matter much. Strong does one thing, and it does it better than Fitbit, Hevy, or any general-purpose fitness app on the market.

Category	Score
Value for Money	9.0 / 10
Features	8.5 / 10
Ease of Use	9.0 / 10
UK Availability	8.0 / 10
Overall	8.5 / 10

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Frequently Asked Questions

Is Strong Fitness Tracker free to use?

Yes, Strong has a free tier that allows you to log workouts, track progress, and access the exercise library. However, the free plan limits you to three saved workout routines. For unlimited routines, advanced analytics, and additional features such as a plate calculator and custom exercise videos, you’ll need a Strong Pro subscription, which is available monthly or annually.

Is Strong better than Fitbit for gym training?

For weight training specifically, yes — Strong is significantly better than Fitbit. Fitbit is designed primarily as an all-day wearable activity tracker and lacks the ability to log sets, reps, and weights in any meaningful way. Strong is purpose-built for gym sessions and offers detailed strength tracking, progress charts, and personal record detection that Fitbit simply cannot match for lifters.

Does Strong Fitness Tracker work on Android?

Yes, Strong is available on both iOS and Android. The app experience is consistent across both platforms, with the same core features available regardless of your device. There is currently no desktop or web app version, so Strong is strictly a mobile application. Both the App Store and Google Play versions receive regular updates.

Can I use Strong Fitness Tracker without a gym membership?

Absolutely. While Strong’s exercise library is weighted towards gym-based movements using barbells, dumbbells, and machines, you can add custom bodyweight or home workout exercises. The app works equally well for home gym training, calisthenics, or any resistance-based workout. You’re not restricted to commercial gym exercises, and all logging features work the same regardless of your training environment.

Does Strong track calories or nutrition?

No — Strong Fitness Tracker does not include any nutrition or calorie tracking features. It is focused exclusively on workout logging. If you want to track your food intake alongside your training, you’d need to use a separate app such as Nutracheck or MacroFactor alongside Strong. Some users find this separation actually keeps both apps cleaner and easier to use.