Surge: Interval & Boxing Timer
SportsUtilities

Surge: Interval & Boxing Timer

Nixes · released 12 Jun 2026 · Open in App Store ↗

Revenue 30d not estimated
Downloads 30d not estimated
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Description

The interval timer that shows you what your heart did every round.

Big, color-coded, readable from across the gym. Voice cues over your music

with the screen locked. And after every workout: heart rate, calories, and

recovery — round by round, straight from your watch.

BUILT FOR EVERY FORMAT

Boxing rounds, Tabata, HIIT, EMOM, AMRAP — one tap to load

Block editor: work, rest, warm up, cool down — any structure you want

Repeat groups: build circuits and repeat them ×2 to ×99

Quick Start: work/rest × rounds in two taps

MADE FOR THE GYM FLOOR

Massive countdown digits you can read from meters away

Green means work, blue means rest — full-screen color coding

Voice coach announces what's next; beeps count you down

Plays over your music and keeps running with the screen locked

YOUR HEART, EVERY ROUND — WITH ANY WATCH

Workouts saved to Apple Health automatically

Heart rate & calories from your watch, right

Recovery: how fast your heart rate drops between rounds — the number

coaches actually care about

Round-over-round drift shows you when your engine fades

Pro: the full per-round breakdown and chart

WORKS WITH ANY SMARTWATCH

Wrist alerts at every interval — Apple Watch, Garmin, Samsung, Pixel & more

Your watch tracks the workout; Surge cues th