PeakInterval: HIIT Timer

PeakInterval is your focused interval timer and training companion. Start with a simple timer, or build a routine with optional Peak Plus. No account. No ads. YOUR ORIGINAL TOOLS STAY FREE • Japanese walking, HIIT, Tabata, run/walk, sprints, focus blocks and mobility • Unlimited basic custom timers with Quick Build and individual interval editing • Spoken interval names, sound cues, countdown beeps and haptics • Lock-screen workout notification with pause, resume, skip and stop controls • Full local workout history, lifetime minutes and day streak GO FURTHER WITH PEAK PLUS • Four progressive programs: Walking Foundations, Run / Walk Journey, Bodyweight Basics and Mobility Reset • 66 program sessions across 4–8 week plans, with completion tracking • 24 additional interval workouts for walking, running, HIIT and mobility • Daily workout variations generated locally for your selected goal, level and time • A training calendar with optional local workout reminders • Weekly workout and minutes goals, 7- and 28-day trends, effort balance and milestone badges • Circuit Studio: named exercise circuits, EMOM, boxing rounds and pyramid intervals • Favorite Plus workouts, export and import timer files, and export history as CSV MOVE AT YOUR OWN PACE Choose gentle, steady or challenging intervals. Preview programs before subscribing, repeat a week when needed and leave room for recovery. Workout suggestions are general timing templates, not medical advice or individual coaching. PRIVATE BY DESIGN Your timers, training preferences, calendar and history stay on your device. Daily variations use local rules, not a remote AI service. You control exported files and optional notification permission. Google Play handles subscription purchases. OPTIONAL SUBSCRIPTIONS Peak Plus is available as a monthly or annual auto-renewing subscription. Both plans unlock the same features while active. Prices and billing periods are shown in the app before purchase. Payment is charged to your Google Play account. Subscriptions renew automatically unless canceled before renewal. Manage or cancel in your Google Play account subscription settings. Restore Purchases is available in Settings and on the Peak Plus screen. All original free features remain available without a subscription. Privacy: https://oanarinaldi.com/peakintervalprivacy.html Terms of Use: https://oanarinaldi.com/peakintervalterms.html Requires Android 11 or later. Optional local reminders may be delayed by Android battery restrictions. Spoken cues use an installed offline text-to-speech voice.

PeakInterval comes to Android: original interval workouts, unlimited custom timers, audio and voice cues, workout history, and optional Peak Plus training programs, daily workouts, planning, Circuit Studio and progress insights.