Rest Interval

Rest Interval is an interval timer for strength training. Track the rest between sets without repeatedly setting a timer. Put your phone down and follow your workout with sounds, spoken cues, and vibration. The timer includes 46 preset exercises in nine categories: chest, back, legs, shoulders, arms, core, HIIT, cardio, and stretching. Set the number of sets, work time, and rest time for each exercise. Adjust times in 5-second steps, or tap a number to enter it directly. For rep-based exercises, work time is unlimited. Tap the button when you finish a set, and your rest begins then. Sound, voice, and vibration • Choose beep, bell, whistle, or no cue sound, and set the volume. • Spoken guidance announces the exercise and set number. During rest, it reads the remaining seconds and the next set. • A short 3, 2, 1 countdown and vibration help you notice transitions. • Keep listening to music. Its volume lowers only for a cue, then returns right away. Keep your routine on track • Keep the screen awake while running when you want to. • See phase changes in lock-screen notifications when the screen is off. • Timing is calculated from elapsed time, so it stays accurate when you leave and return to the app. Your history records the exercise, date and time, duration, and completed sets. View workout days in a monthly calendar, plus your streak and weekly count. Create custom workouts for exercises not in the presets. Choose dark or light appearance and adjust the preparation countdown. Rest Interval supports English, Japanese, Spanish, French, German, and Brazilian Portuguese. It follows your device language, and you can change it in the app. No account is required. There are no ads or analytics. Your data stays on your device. For iPhone in portrait orientation. Rest Interval is a tool for timing training, not a medical device. Exercise at your own risk. If you have health concerns, consult a physician before exercising.