IntervalTimer Duo
HIIT, Pomodoro & Yoga Timer
Free · In-App Purchases
Two alternating timers with automatic set tracking. Built for HIIT and Pomodoro. Lock Screen progress, preset sharing by link. v1.2.5: more reliable in the background.
IntervalTimer Duo is a simple and easy-to-use interval timer app for iPhone and iPad that alternates between two customizable timers.
【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】
• Automatically alternate between two timers
• 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 (Premium)
• 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
Premium (one-time purchase, or during the free trial):
• Unlimited presets
• Preset sharing via link
• 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
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
v1.2.5 — Background & Live Activity improvements
• Fixed an issue where timer alerts could stop sounding in the background
• Fixed the Live Activity on the Lock Screen and Dynamic Island freezing mid-session
• The Live Activity is now localized in 5 languages
• Alert sounds now respect the silent switch
• Improved VoiceOver support
• Other stability improvements
The developer, kosuke konuma, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- kosuke konuma
- Size
- 10.6 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.1 or later.
- iPhone
Requires iOS 26.1 or later. - iPad
Requires iPadOS 26.1 or later. - Mac
Requires macOS 12.0 or later. - Apple Vision
Requires visionOS 26.1 or later.
- iPhone
- Languages
English and 4 more
- English, French, German, Japanese, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Version EGP 149.99
- Copyright
- © 2026 nwpo