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Man in a red shirt holding a plank next to a phone showing a 20-second timer on a gym floor

Gustav training apps

Workout apps 
that get out of your way.

A precise interval timer and a dead-simple lifting log for iPhone & iPad.

Download on the App Store
Gustav Timer app icon
Gustav Weights app icon

No ads

No subscriptions

100% free

iPhone + ipad app

Gustav Workout Timer

The interval timer built for real training. Set any combination of work, rest, and rounds — or start instantly with built-in Tabata, HIIT, EMOM & AMRAP presets. Save your favourites, follow along with haptics and sound cues, and keep the big always-on display in view through every round. No ads. No subscriptions.

Learn more about the timer

Features

  • Fully Customizable Intervals
  • Favorites, Built for Sharing
  • Built-In Timers, Zero Setup
Download on the App Store
Gustav Timer app icon
Phone on a gym bench next to dumbbells showing a 13-second countdown
Large green 3 countdown in Gustav Timer on a gym floor
Gustav Timer showing a Wall Sit interval with work and rest settings
Fingers tapping the green button in Gustav Timer during a 26-second countdown
Gustav Weights app showing a bench press entry with a number keypad

iPhone App

Gustav Weights

The strength log without the bloat. Add your own exercises, punch in the weight in two taps, and watch your personal records climb. Every set is saved to a clean, searchable logbook — so you always know what to beat next time. No ads. No subscriptions.

Download on the App Store
Gustav Weights app icon

FAQ

Are the apps really free?

Yes. Both apps are free, with no ads and no subscriptions.

Do they work offline?

Completely. Everything runs and is stored on your device.

iPad and landscape?

Gustav Timer supports iPad and landscape mode.

Which presets are included?

Tabata, HIIT, EMOM, and AMRAP — plus fully custom intervals.

How do I get support?

Email gustav@daliborjanecek.cz