Best Interval Timer is an iPhone app developed by 倩 赵. It is a free app in the Lifestyle category, specifically designed for Health & Fitness enthusiasts. This app acts as your personal coach, allowing you to focus on your workout without worrying about time.

The app comes with one default routine, but you have the flexibility to edit it according to your preferences. This includes customizing warm-up, high/low intensity, cool down, rest time, and more. You can create as many sets as you need to achieve your fitness goals.

Key Features of Best Interval Timer include a big readable countdown timer, options to start, pause, or reset routines, support for background and foreground playing, and multitasking capabilities. The app also allows you to play music during your workout and choose whether or not to enable vibration.

Additionally, Best Interval Timer offers 15 interval switch sounds and 12 background interval pictures to enhance your workout experience. It also keeps track of the number of times you have practiced a routine, allowing you to monitor your progress.

The app supports both landscape and portrait orientations, providing flexibility in how you use it. Furthermore, you can set reminders to alert you to perform your workouts, ensuring you stay on track with your fitness routine.

For any questions or suggestions, you can contact the developer by sending an email to