DUPR vs HIIT Timer / Interval Timer

DUPR uses an innovative rating algorithm engineered to grow the sport of pickleball with a commitment to accuracy, transparency, and adaptability. LOG MATCHES Start increasing your rating today by registering and recording all your matches! Log your recent matches. Once you’re done, your opponent will be prompted to verify scores via email. GET YOUR DUPR Your rating will be updated immediately once your scores are verified by your opponent You may review your match history at any time. FIND PLAYERS NEARBY Browse DUPR user profiles - see the match history, ratings, and approximate location of potential opponents and teammates. Subscription Information DUPR offers in-app subscriptions that provide exclusive features, an ad-free experience, and other benefits. EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

It's a timer app suitable for HIIT training. All features are completely free to use. Features: - Quick start-up and comfortable operability. Create unlimited timers. - Freely set warm-up, ready, workout, interval, cool-down minutes / seconds, and set counts. - Customize colors, texts, background notifications, sounds, speeches, vibrations, screen flashes and icon badges. - Dark mode - All free URL scheme: hiittimer:// --- * High-intensity interval training High-intensity interval training (HIIT) is a training protocol alternating short periods of intense or explosive anaerobic exercise with brief recovery periods until the point of exhaustion, which thereby relies on "the anaerobic energy releasing system almost maximally." * Procedure HIIT exercise sessions generally consist of a warm up period followed by repetitions of high-intensity exercises separated by medium intensity exercises for recovery, then a cool-down period. The high-intensity exercise should be done at near maximum intensity. The medium exercise should be about 50% intensity. The number of repetitions and length of each depends on the exercise, but maybe as little as three repetitions with just 20 seconds of intense exercise. The specific exercises performed during the high-intensity portions vary. Most of the research on HIIT has been done using a cycling ergometer, but other exercises like a rowing ergometer, running, stair climbing and uphill walking can also be effective. There is no specific formula for HIIT. Depending on one's level of cardiovascular development, the moderate-level intensity can be as slow as walking. A common formula involves a 2:1 ratio of work to recovery periods, for example, 30–40 seconds of hard sprinting alternated with 15–20 seconds of jogging or walking, repeated to failure. The entire HIIT session may last between four and thirty minutes, meaning that it is considered to be an excellent way to maximize a workout limited by time constraints. Use of a clock or timer is recommended to keep accurate times, the number of rounds, and intensity. Quoted from: https://en.wikipedia.org/wiki/High-intensity_interval_training