Swimming Workout Builder is a free Android app created by French coach Matthieu Chadeville. It falls under the Lifestyle category and is specifically designed for sports enthusiasts. The app allows users to select their desired training parameters such as distance, intensity, and rest time, and then generates a personalized session from hundreds of possibilities.

Although it is not a substitute for a real trainer, this app can help users create unique workouts for occasional training. Additionally, the app provides useful technical tips to improve efficiency in the water.

Overall, Swimming Workout Builder is a great tool for swimmers looking for a personalized and efficient training regimen. Don't forget to rate the app and report any operating problems, errors, or translation issues to the developer.