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TRIO: Tabata & HIIT Timer

Interval timer you can read
Kazuto Kato · Health & Fitness
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App info

Developer
Kazuto Kato
Category
Health & Fitness, Sports
Released
Oct 16, 2026
Version
1.0.1 (Oct 19, 2026)
Price
Free
Size
23.2 MB
Requires
iOS 15.0
Age rating
9+
Languages
English and Japanese

In-app purchases

No ads + 4 themes$1.99
Current prices, App Store US.
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About TRIO: Tabata & HIIT Timer

A Tabata & HIIT timer you can read from across the room. THREE CIRCLES THAT SWAP READY, WORK and REST are circles. The current one sits big in the center and smoothly swaps places when the next phase begins. During a workout the whole screen takes on that phase's color, so you know where you are at a glance. VOICE COUNTDOWN A voice counts down the last seconds of each phase — "five, four, three…". Choose when it starts (OFF, 3, 5 or 10). Your music keeps playing and only dips while the voice speaks. SCREEN STAYS ON By default the screen stays on during workouts. If you lock your phone, the remaining seconds show on the Lock Screen and in the Dynamic Island. EVERY DAY YOU TRAIN COUNTS Finish a workout and the day is logged — no typing. Your color deepens every 30 days, and you earn crowns: bronze at 365 days, silver at 730, gold at 1,095. See it on a Home Screen widget. Your days move to…
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