What’s up, Product Hunters! I’m Jaron, the builder behind HIITem — a HIIT workout timer PWA built because I was tired of jumping between a timer app and a workout list mid-exercise. HIITem keeps your full workout visible while you’re in it. You see exactly what’s coming next, stay in the zone, and never lose count. Build a custom workout in under a minute, hit go, and the app handles the rest — prep countdowns, exercise-by-exercise pacing, and a clean ring timer that keeps you locked in. I use this a lot, and what keeps me coming back is the combination of a social feed (follow friends, see their activity) and an activity heatmap that tracks your consistency. I feel accountable when my friends are active, and I love the fact that every day is a new opportunity to get after it. No app store needed — install it straight from the safari browser and it runs like a native app. Would love to hear what workouts you build first. Drop them below!

HIITem

Build and share custom HIIT workouts / track your progress!

Build and share custom HIIT workouts / track your progress!