Thumb calculator vs Tabata Timer

A calculator that is easy to operate with just the thumb of one hand, even on large-screen smartphones. *Specially placed numeric keypad

Tabata Timer - SLOX is built exclusively for the Dr. Izumi Tabata interval protocol — not a generic HIIT, EMOM, or boxing round timer. WHAT IS TABATA? In 1996, Dr. Izumi Tabata published a study showing that 20 seconds of maximum effort followed by 10 seconds of rest, repeated 8 times (~4 minutes), dramatically improves VO₂max. That exact 20:10 × 8 format is the heart of this app. CLASSIC PROTOCOL (FEATURED) • 20s WORK / 10s REST × 8 rounds = ~4 minutes • Round dot progress indicator • Full-screen phase colors: Ready (amber) · Work (red) · Rest (cyan) • "Tabata Round X/8" and live 20:10 ratio display during workout 10 TABATA PRESETS Classic, Beginner, Endurance, Strength, Intense 45, Power 40, Sprint, Beast Mode, Micro, and Custom — all using Tabata-style work/rest intervals, not minute-based EMOM or 3-minute boxing rounds. TABATA GUIDE & SESSION LOG Tap ⓘ for the full Tabata protocol explanation, preset reference, and your recent completed sessions with work:rest ratio and round count. OTHER FEATURES • Countdown before start (0–15 sec) • Vibration cues for phase changes • Keep screen on during workout • Session count and total workout time • 7 languages: English, Korean, Japanese, Chinese (Simplified & Traditional), Spanish, Portuguese NOT THE SAME AS OTHER SLOX APPS • EMOM Timer — starts every minute (E2MOM, E3MOM) • HIIT Timer — free Work:Rest ratio settings • Boxing Timer — 3-min rounds / 1-min corner rest Tabata Timer is the only SLOX app dedicated to the Tabata 20:10 protocol. Free with ads. Visit slox.co.kr for privacy policy and terms.