Interval Timer vs Radical Trainers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Timer
This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.
- Customizable work and rest periods
- Set number of sets and rounds
- Background operation support
- Music playback compatibility
- Apple Watch integration
- Heart rate monitoring (Apple Watch)
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This app is handy interval timer that helps you keep track of your work and rest periods during your HIIT interval training and workouts. The application is very easy to use, enter the Work, Rest, Sets, Rounds and start workout. You can listen to music during workouts or use the timer in the background. There is also app on the Apple Watch that will allow you to monitor your heart rate during workouts. Apple Watch app features: - iCloud sync with iPhone - integration with the Health app - monitoring heart rate during workouts
Radical Trainers
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We’ve rebuilt the Radical Fitness App from top to bottom. The third generation Radical Fitness App is here now. Easier and friendlier to navigate - plus create your own playlists as simple as 123. Bigger, better, faster - download the new App today and get the same features and benefits, which have been significantly upgraded for the users' simplicity of use. Key features of the new App: • Design is now simpler to operate. • Program layout is now customized vertically, so much easier to click on the program and the release you want to access. Simply scroll for mix selection. • Users can now view six mixes on the screen compared to only two to three before. • Searching for tracks is smoother as you can easily move back to where you were previously without starting back at the beginning again. • A new indicator gives you a visual record of the tracks being downloaded. • Individual tracks can now be downloaded rather than the whole mix, meaning that you can also now delete a single track from a mix you’ve downloaded. This frees up space with tracks you won’t use. • Creating playlists is easier and more functional, and the deleting of tracks is a simple smooth double click. • In MY LIBRARY, you can view only the mixes that have been downloaded, which makes searching a breeze. • Searching for your favorite track just got easier as you can now search for a song by its name. • FAVORITES, you can select favorite tracks, making it easier to search for tracks you like. • In NOW PLAYING, you can view what track is coming up next. • In NOW PLAYING, you can also see the Beats per Min of each track, which allows you to see the peaks in a class. • If you get a new device, you will keep your playlists and favorites; you will only have to download them again or use them with an internet connection!
Screenshots
Verdict
The clearest difference is in-app purchases: Radical Trainers at none against Interval Timer's 1. Radical Trainers also leads on ads (none vs shown). Interval Timer's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 17.0). On price and update cadence 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. Interval Timer sells 1 one-off in-app purchase. Radical Trainers asks for nothing beyond the download.
Interval Timer ships an update every 2 months, Radical Trainers every 3 months. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.
| Parameter | Interval Timer | Radical Trainers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (246 ratings) — better | — |
| Positive reviews | 83.5% of reviews | — |
| Number of ratings | 246 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 12 MB | 61 MB |
| Age rating | 4+ | 4+ |
| Developer | Yosyp Hameliak | Radical Fitness |
In-app purchases
Interval Timer
- Remove Ads$4.99
Radical Trainers
No in-app purchases
Questions
Is Interval Timer free?
Is Radical Trainers free?
Do Interval Timer or Radical Trainers have ads?
Which is updated more often, Interval Timer or Radical Trainers?
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