Software · Everyday life

Exercise Timer

Exercise Timer is a timer and time tracking program, available on Linux.

Completely free
Linux
Open source

At a glance

All of Exercise Timer is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

Exercise Timer is a simple utility to conduct high intensity interval training. Following a short preparation period, a prescribed number of exercise sets are played. In between each exercise, there is a resting period. The app does not make an assumption about the kind of the exercise. Features: Save and recall presets containing the number of sets and the duration of the exercise, rest and preparation periods. A beeping sound is played at- and prior to each transition. The volume of the sound can be adjusted. Light and dark mode follows the system's setting.

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Facts collected from Official plan pages (pricing, licence, terms) (commercial use) — 8 November 2026
Last technical check: 7 November 2026
Description from Flathub — AppStream (Flathub)

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