Interval Timer vs RX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Timer
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The simple and powerful interval timer for workouts, training, and fitness. Interval Timer – Workout Timer is a clean, fast and easy-to-use timer app for interval training, HIIT workouts, Tabata sessions, boxing rounds and gym training. Create your workout in seconds: Set work time Set rest time Choose rounds Tap start Perfect for: HIIT training Tabata workouts Boxing and fight rounds Gym training Fitness workouts Home workouts Interval training Core features: Interval timer for workouts HIIT and Tabata presets Boxing and round timer Custom work and rest intervals Simple controls Clear countdown Sound alerts Screen always on Clean and minimal UI Fast performance Battery friendly Why users love it: No complex setup No unnecessary features No cluttered interface Just a fast and reliable workout timer Upgrade to Pro to unlock: Unlimited custom timers HIIT, Tabata and Boxing presets Full background audio support Bluetooth audio support Workout history and stats Custom sounds Countdown voice No ads Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
RX
This app provides a versatile workout timer designed for functional fitness. It supports various training formats like AMRAP, EMOM, and Tabata with customizable durations and clear visual cues. The app offers offline functionality, a high-contrast display, and the ability to stream to external screens.
- Multiple workout formats (AMRAP, EMOM, Tabata, RFT)
- Customizable work/rest intervals
- Large, high-contrast display
- Landscape full-screen mode
- Work/rest color coding
- Stream timer to TV via AirPlay
- Offline functionality
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A WOD timer in your pocket, always ready when you are. No hunting for the gym clock. No dead remote batteries. No digging through menus before a workout. RX-Timer is built for one job: start training fast, see the clock clearly, and stay focused on the work. 100% free. No account. No ads. No subscription. Just a timer that does everything you need, without getting in the way. Every workout format • Count up for AMRAP and For Time • Count down for timed efforts, with optional pre-start countdown (3, 2, 1) • Intervals with work/rest rounds for EMOM, Tabata, RFT, and chipper-style sessions • Adjust any duration down to the second. Built for the gym • Huge digits you can read from across the room. • High contrast display • Landscape full-screen mode. Tap to start, pause, or resume • Work/rest colour coding. Red and green cues like the clock at your box • Clear beeps and haptics at starts, transitions, and finish • Sound works alongside your music Stream to a TV • Mirror the timer to AirPlay displays. • Perfect when your phone is propped up or you want the whole gym to see the clock. Track your training • See how many timers you have completed and view your activity on a heat map. • Built in, on your device, with no login. Zero friction • Works offline • No sign-up required • All settings and stats stay on your phone • Sound can be turned off anytime Whether you are hitting a WOD at the box, training in the garage, or travelling without a gym clock, RX-Timer is the timer you will actually want to open every session. RX-Timer is a workout timer for functional fitness. It is not a medical device, medication reminder, or prescription app.
Screenshots
Verdict
The clearest difference is in-app purchases: RX at none against Interval Timer's 1. On price, ads, device support and iOS requirement 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 in-app purchase, starting at $4.99 per month. RX asks for nothing beyond the download.
| Parameter | Interval Timer | RX |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Mariyan Dechev | Daniel Thrnaholm |
In-app purchases
Interval Timer
- PRO$4.991 Month
RX
No in-app purchases









