The Yo-Yo fitness test is a maximal aerobic endurance fitness test. This app includes both the popular intermittent recovery test & the endurance tests aka "Beep Test".
Test yourself and find your Vo2 max using the Intermittent Recovery test 1 & 2 and get a grading.
For more information see the wiki:
https://en.wikipedia.org/wiki/Yo-Yo_intermittent_test
Homepage:
https://yoyofitnesstest.com