IntervalTimer Duo

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