Crashes so frequently it's nearly unusable – sleep-2-Peak, sleep need tool Review

Sadly this app crashes so frequently that it's nearly unusable. To make matters worse, the crashes typically occur upon completion of the visual psycho-motor tests, losing the data collected during the test. While the idea of better understanding the effect of sleep patterns on performance is attractive, and the pedigree of the app's developers lend it credibility, the basic dysfunction of the app renders it unworkable and not worth the effort to undertake the tests repeatedly.
Review by brosnaro on sleep-2-Peak, sleep need tool.