Sprint Start Sprint Watch is a free lifestyle application available on the iPhone platform. Developed by Shohei Nakagawa, this app allows users to practice their sprint starts using sound cues. Additionally, it provides a stopwatch feature for tracking your running time.

The app offers a starter function that helps users practice their sprint starts by providing sound cues to simulate the start of a race. This can be a useful tool for athletes looking to improve their sprinting technique.

In addition to the starter function, Sprint Start Sprint Watch also includes general stopwatch functions. Users can easily track their running time and monitor their progress.

One of the standout features of this app is its ability to record sprint data for every date. Users can record their sprint times and speeds (in km/h) for each session, allowing them to track their performance over time.

Furthermore, Sprint Start Sprint Watch allows users to share their records via email or LINE, a popular messaging app. This makes it convenient for users to share their achievements with friends, coaches, or training partners.

Overall, Sprint Start Sprint Watch is a handy app for athletes and fitness enthusiasts looking to improve their sprinting skills. With its starter function, stopwatch features, and record-keeping capabilities, it provides a comprehensive toolset for sprint training.