Train like a beast. Dominate every round. BeastInterval is the ultimate high-intensity interval timer for serious athletes, fighters, and anyone who wants to train with purpose. Push your limits with precision. 4 Full Workouts Free – No fluff. Just sweat. Unlock everything with a 3-day free trial when you're ready to go beast mode. Why Beast Interval hits harder: 18 Killer Programs – Built for HIIT, Tabata, EMOM & more. Modify rounds up to 20 and go hard. Custom Workouts – Create your own training sessions with insane control: up to 30 rounds, 5min 59s work + 5min 59s rest. Beast Progress View – Track your grind: current/longest streaks, completion rate, 7-day graphs, full history & more. Achievements – Unlock trophies as you crush goals. Built-in motivation. Fast, Clean UI – No ads. No BS. Just a slick design built for performance. iCloud Sync - You will never lose your stats! Whether you’re in the gym, on the mat, or at home — BeastInterval is your edge.