Exercise Timer alternativesExercise Timer is an open-source app for Linux and Flathub. It is free to use. Developed by Lorinc Serfozo.AlternativesOpenHIITLapzAika Workout TimerTimerLabsProtoFit: Workout & HIIT TimerSeconds Interval TimerWODroundsGymPulseTimerChirp TimerOnline Interval TimerIntervally - Interval TimerHIRT Tracker