IntervalTimer Duo vs Interval Timer (Simple)
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IntervalTimer Duo
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IntervalTimer Duo is a simple and easy-to-use interval timer app for iPhone and iPad that runs up to 10 timers in sequence. 【Key Uses】 • HIIT (High-Intensity Interval Training) • Pomodoro Technique (work and break cycles) • Cooking timing management • Stretching and yoga routines • Study and rest cycle management 【Features】 • Run your timers back to back, automatically • Build workouts with up to 10 timers — warm up, work, rest, cool down (Premium from the third timer) • Each timer adjustable from 1 second to 60 minutes • Preset feature to save and instantly recall favorite settings (1 preset free; unlimited presets: Premium) • Share presets via link — let friends import your timer setup in one tap • Set counter to track progress toward your target sets (Premium) • Audio notifications and vibration when timers end • Live Activity shows remaining time on Lock Screen and Dynamic Island (Premium) • Customizable alert sounds (extra sounds: Premium) • Simple and intuitive interface 【Preset Sharing】 • Share your favorite timer configurations via link • Recipients can import presets with a single tap • Sync routines with your team or workout partners 【Ease of Use】 • One-tap start, pause, and reset • Quick time setting with preset buttons • Visual circular progress bars show remaining time • Second timer can be enabled/disabled as needed • Set counter tracks completed sets toward your goal 【Free & Premium】 The app is free to download and use. After installing, all premium features are unlocked for a 14-day free trial. When the trial ends, premium features require a one-time purchase (pay once, use forever) — a Universal Purchase shared between iOS and macOS. Free forever: • Two timers running alternately (1 second to 60 minutes each) • One saved preset • Basic alert sounds • Audio and vibration notifications when timers end • Circular progress bar • Preset sharing via link (sending and receiving are both free) Premium (one-time purchase, or during the free trial): • A third timer and beyond (up to 10, each with its own name and sound) • Unlimited presets • Set counter • Additional premium alert sounds • Live Activity on Lock Screen and Dynamic Island 【Compatibility】 • iPhone and iPad • Available in English, Japanese, French, German, and Spanish 【Universal Purchase】 If you own the macOS version, you can use the iOS version at no additional cost. A simple yet fully-featured interval timer app that's perfect for any timing needs. Privacy Policy: https://techback.info/interval-timer/ios/privacy-policy.html Terms of Use (EULA): https://techback.info/interval-timer/ios/terms-of-use.html
Interval Timer (Simple)
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Why are all these interval timers so complicated? Ain't nobody got time for that. Stupid simple interval timer. Set interval. Toggle sound. Get to work. EXOX timer (Every X On The X).
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Verdict
The clearest difference is update cadence: Interval Timer (Simple) at weekly against IntervalTimer Duo's every 3 weeks. Interval Timer (Simple) also leads on iOS requirement (15.1 vs 26.1). On price, ads, in-app purchases and device support 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. IntervalTimer Duo sells 1 one-off in-app purchase and Interval Timer (Simple) sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
IntervalTimer Duo ships an update every 3 weeks, Interval Timer (Simple) weekly. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | IntervalTimer Duo | Interval Timer (Simple) |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 26.1 | 15.1 — better |
| Further details — not scored | ||
| Size | 10 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | kosuke konuma | Domett Xing |
In-app purchases
IntervalTimer Duo
- Full Version$2.99
Interval Timer (Simple)
- Lifetime Purchase$6.99
Questions
Is IntervalTimer Duo free?
Is Interval Timer (Simple) free?
Do IntervalTimer Duo or Interval Timer (Simple) have ads?
Which is updated more often, IntervalTimer Duo or Interval Timer (Simple)?
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