Two sliders. One button. Works with the phone locked No subscription

PureTimer - The simplest interval timer

Built for HIIT, boxing rounds, sprint intervals, and circuit training. Set your work time, set your rest time, press start, and let PureTimer drive every round with clear audio cues and a focused interface.

Download on the App Store Support

PureTimer in action

Real app screens showing the fast setup flow, the live workout timer, and the completion summary after a session.

PureTimer setup screen with work, rest, rounds, and prep controls before starting a workout

PureTimer active workout screen showing a circular interval timer and current round progress

PureTimer workout complete screen showing total time, round count, and a done button

Simple by design

Two interval sliders, one rounds control, and one big start button. No templates, no setup maze, no wasted taps.

Loud, clear cues

Distinct sounds for work and rest transitions, plus a 3-2-1 countdown that still cuts through gym noise and AirPods.

Keeps going in the background

Your workout continues when the screen locks or you switch apps, so the timer stays reliable mid-session.

One-time support unlock

Support the app with a tip to unlock supporter features forever. No subscriptions, no hidden upsell flow.

Ready every workout

PureTimer remembers your last setup, keeps the screen awake, and adds haptics on every phase change.

Made for real interval training

Whether you are doing short explosive sets or long conditioning rounds, the app is built to stay legible, fast, and dependable under pressure.

HIIT Quick work and rest cycles without setup friction.

Boxing Clear round timing that works even with music playing.

Circuit Training Repeatable intervals for clean station-to-station flow.

Sprints and Holds Precise timing for track work, planks, carries, and more.

No signup. No subscription. No nonsense.

PureTimer is built to disappear into your workout. Configure it in seconds, trust it to keep going, and support it once if you want the extra lock screen and widget controls.

Need help with PureTimer? Support