InEx, developed by Future Zooming, is a free Android application that allows you to track your breathing and retention times with minimal interference. The app is primarily designed for Wim Hof Method (WHM) breathing exercises but can be used for any other tracking practice.

The app has a sleek, dark interface that can be comfortably used both during the day and at night. The screen stays on during the breathing sessions, shielding your concentration. Additionally, the stopwatch has an autosave feature that automatically saves your retention times.

InEx provides simple graphs that show your progress over time and the details of each breathing session. The collected data can be exported in CSV file format. InEx is completely free, without ads or tracking.

Take a deep breath and track your progress with InEx!