Rounds: HIIT Workout Timer

Rounds is a HIIT interval timer for people who train in the time they actually have. Pick 5, 7, 10 or 15 minutes, choose what you want to work, and start — the timer runs the whole circuit for you, 30 seconds of work and 10 seconds of rest, calling each exercise before it arrives. No equipment. No sign-up. No counting reps in your head. WHAT'S INSIDE • 20 bodyweight circuits across five focuses — Full Body, Core, Legs & Glutes, Upper Body and Quiet • Three difficulty tiers, so the same circuit grows with you • 50 exercises, each with a form cue and a 3D demonstration you can watch from the front or the side • Three 30-day challenges with a calendar you fill in one round at a time A TIMER THAT DOES THE THINKING It counts you in, announces the next exercise during your rest, beeps the last three seconds, and flips the screen from navy to red the moment work starts. You can put the phone down and still know exactly where you are. QUIET WORKOUTS FOR SHARED WALLS Live in a flat? Every focus has a Quiet version, and it is a real workout rather than a watered-down one — no jumping, no thudding, nothing your downstairs neighbours will hear. Look for the NO JUMPS label on any exercise. 30-DAY CHALLENGES Three tracks: a five-minute starter, the classic seven, and a core-focused month. One short round a day, with recovery days built in. Miss a day and it simply becomes today — no streak shaming, no starting over. HONEST ABOUT WHAT IT MEASURES Rounds shows you time and rounds completed. It does not estimate calories burned or your heart rate, because a phone in your pocket cannot measure either, and a made-up number about your health is worse than no number at all. FREE AND OFFLINE Every circuit, every tier and all three challenges are free. Nothing is locked behind a purchase. Once installed the app works with no connection at all — the only thing that needs the internet is the ads that pay for it. Your workouts stay on your phone. No account, no sign-in, nothing sent anywhere.