Bodyfat Tracker vs Flash Interval Timer Workout
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bodyfat Tracker
Easily track your body fat percentage and other key metrics to support weight loss or muscle building goals. Simply input your waist measurement and weight to monitor progress over time with detailed charts and customizable goals.
- Body fat percentage tracking
- Waist to Height Ratio (WHR) calculation
- BMI calculation for comparison
- Progress charts (bar and line)
- Goal setting for weight, waist, and body fat
- Automatic result updates
- Multiple measurement systems
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*Update - now includes the new Army body fat calculation method as an option, which was introduced in June 2023. If you want to lose weight or are trying to build muscle then you need an accurate and simple way to track body fat percentage and other important metrics. With this app you simply need to measure your waist and weigh yourself - that’s it! No messing around with callipers and such. With these measurements each day you can track your progress over time using the charts and waist and weight goals you set yourself. Get a true picture of your body status with accurate metrics like Waist to Height Ratio (WHR) and Bodyfat percentage. Gives an overall body category based on body fat percentage and WHR. BMI is also shown for comparison. Features include: - both bar and line charts to monitor progress - trend line can be activated to see if you're on the right track - enter your goal weight, waist and even body fat percentage to give yourself motivation - move back and forth by date and add or modify entries quickly using the arrow buttons - Automatically updates results as you type! No need to press a 'calculate' button every time to see your results like with other body fat calculator apps - entry view where you can view a list of all entries made that month - choose your measurement system between kilograms, pounds or stones and pounds - summary popup box shows important metrics and overall progress at a glance - charts can be viewed in full screen mode to get a good view of progress over a longer time period - Waist to Height Ratio (WHR) and BMI metrics - Multiple themes available - Supports English, French, Chinese and Japanese languages
Flash Interval Timer Workout
This app provides a customizable interval timer for various high-intensity interval training (HIIT) and circuit workouts. Easily build, save, and access your training sessions with clear visual cues and audio prompts to keep you focused.
- Customizable work and rest phases
- Save and favorite workouts
- Large, clear countdown display
- Audio and voice cues
- Workout history tracking
- Multiple appearance themes
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Flash Interval Timer Workout is a fast, focused interval timer for HIIT, Tabata, circuits, running, strength work, and custom training sessions. Build sessions in seconds, save them to your library, and stay locked in with a large circular countdown that makes it obvious what phase you are in, how long is left, and what comes next. Features: Big full-screen interval timer Custom work, rest, prepare, and cooldown phases Save workouts to your library Favourite workouts for quick access Presets for fast setup Advanced custom sets and variations Skip the last rest option Audio and voice countdown cues Multiple sound themes Per-phase colour customisation Workout history Light, dark, and system appearance options Flash Interval Timer Workout is designed to reduce friction before and during training, so you can start quickly and keep moving.
Screenshots
Verdict
The clearest difference is in-app purchases: Flash Interval Timer Workout at none against Bodyfat Tracker's 6. Bodyfat Tracker's advantage is ads (none vs shown) and update cadence (every 3 days vs every 9 days). On price, rating, review sentiment and ratings volume there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Bodyfat Tracker sells 6 in-app purchases, starting at $0.99 per month. Flash Interval Timer Workout asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Bodyfat Tracker against 4.9 for Flash Interval Timer Workout. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Bodyfat Tracker ships an update every 3 days, Flash Interval Timer Workout every 9 days. The most recent releases landed on October 5, 2026 and October 7, 2026 respectively.
| Parameter | Bodyfat Tracker | Flash Interval Timer Workout |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.9 (7 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 | 7 — better |
| Update frequency | Every 3 days — better | Every 9 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 46 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Simon Burgess | Colin Differ |
Customer experience
Bodyfat Tracker
Flash Interval Timer Workout
In-app purchases
Bodyfat Tracker
- Premium Monthly$0.991 Month
- Premium Annual$5.991 Year
- Small tip$0.99
- Medium tip$1.99
- Large tip$4.99
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- Premium Lifetime$9.99
Flash Interval Timer Workout
No in-app purchases
Questions
Is Bodyfat Tracker free?
Is Flash Interval Timer Workout free?
Which has better reviews, Bodyfat Tracker or Flash Interval Timer Workout?
Do Bodyfat Tracker or Flash Interval Timer Workout have ads?
Which is updated more often, Bodyfat Tracker or Flash Interval Timer Workout?
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