Simple Timer vs RoundShift
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Timer
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30 seconds of work, and 10 seconds of rest. "Simple Timer" is a minimalist interval timer that fully automates your custom time cycles. Whether you're stretching, practicing yoga, meditating, or focusing on your daily routines, you no longer need to constantly tap your screen to reset the timer. It is designed purely as a tool to keep your focus unbroken from start to finish. Look at the screen, and you'll see a clean circle quietly visualizing the remaining time. Close your eyes, and Siri's voice feedback or soothing ambient sounds will guide you through phase transitions. Stripped of unnecessary features and flashy animations, it simply exists to organize your time beautifully. ■ Basic Features (Free) * Intuitive Setup: Easily input WORK, REST, and the number of SETS. * Soothing Sounds: Choose from relaxing ambient sounds (like Rain or Forest) or toggle transition sounds. * Voice Assistant: Siri will announce your sets and countdowns in English, allowing you to stay focused without looking at the screen. * Theme Colors: Available in Blue and Red. Blends perfectly with both Dark and Light modes. * Save Presets: Save up to 3 timers for your specific routines. * Apple Health Integration: Automatically log your timer sessions as Mindful Minutes or Workouts in the Apple Health app. ■ Pro Features (One-time purchase) Remove all ads and unlock the full potential for deeper focus. * iCloud Sync & Backup: Automatically safely sync your custom timers across all your devices. * Multilingual Voice Assistant: Unlock Siri voice feedback in 6 additional languages, including Japanese, Spanish, and French. * Expanded Storage: Save up to 50 timers. * Unlock All Colors: Customize your timers with Cyan, Magenta, Orange, and more. * Screen Auto-Lock (Dimming): Automatically dims the screen after a set time to save battery and prevent visual distractions. * Personal Memos: Add notes like yoga poses or breathing techniques directly to your timers. * Lock Feature: Prevents accidental taps while your timer is running.
RoundShift
This interval timer app provides voice coaching for various workout types, allowing you to keep your eyes on your exercise rather than the screen. It offers customizable presets, multiple voice options, and can even display workouts on a larger screen for group sessions. Advanced features like adaptive rest and Apple Health integration are available with a Pro upgrade.
- Voice coaching for workouts
- Customizable interval presets
- Plain language workout builder
- Multi-language coach voices
- Screen-off and face-down operation
- AirPlay for group sessions
- Adaptive rest with Apple Watch
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The interval timer you don't have to look at. RoundShift calls out every round — get ready, work, rest, half way, last round — so your eyes stay on the workout, not the screen. BUILT IN SECONDS • Tabata, HIIT, EMOM, strength presets — or design your own • Warm-up, custom intervals, unlimited rounds • Describe a workout in plain words and let RoundShift build it VOICE THAT COACHES • Real coach voices in 10 languages — or calm and hype styles • 89 exercise names spoken aloud in custom workouts • Works with the screen off, phone face down, music playing COACH MODE ON THE BIG SCREEN • AirPlay the countdown to any TV for group sessions and classes • Giant display the whole room can read APPLE WATCH + ADAPTIVE REST (PRO) • Full timer on your wrist with live heart rate • Rest that adapts: end rest early when your heart rate recovers, or extend it when you need more • Workouts logged to Apple Health with the right activity type SEE YOURSELF SHOW UP • Streaks, weekly minutes, and a calendar of every session • Home Screen widgets and quick actions NOT JUST FOR THE GYM • Box breathing and breathwork: 4-4-4-4 in seconds • Stretch and physio holds with spoken changeovers • Focus sprints for study and deep work • Anything that repeats: intervals are intervals RoundShift is free forever for running timers and built-in workouts. RoundShift Pro (one-time purchase, no subscription) unlocks saved workouts, stats, widgets, and Apple Watch.
Screenshots
Verdict
The clearest difference is ads: RoundShift at none against Simple Timer's shown. RoundShift also leads on device support (4 vs 1) and iOS requirement (15.0 vs 17.6). On price, update cadence and in-app purchases 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. Simple Timer sells 1 one-off in-app purchase and RoundShift sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Simple Timer ships an update every 4 days, RoundShift every 2 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.
| Parameter | Simple Timer | RoundShift |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 143 MB |
| Age rating | 4+ | 4+ |
| Developer | Takehiro Asano | Carl Law |
In-app purchases
Simple Timer
- Simple Timer Pro$4.99
RoundShift
- Intervo Pro (Lifetime)$4.99









