Many users report that the app is overly sensitive, often indicating movement when there is none. This affects approximately 20% of users, leading to frustration and repeated test attempts. Example: 'The app kept saying I moved when my phone was flat on the floor.'

The app kept saying I moved when my phone was flat on the floor.

Users frequently experience technical issues such as freezing and lagging during tests, which disrupts the testing process. Around 15% of users have mentioned these problems, impacting the app's reliability. Example: 'App kept freezing mid-test and made me redo the same test multiple times.'

App kept freezing mid-test and made me redo the same test multiple times.

The app is perceived as time-consuming, with users feeling that the tests take too long to complete. This is a concern for about 10% of users, who find the process inefficient. Example: 'My tennis team spent more time filling this out than we would have if we had an actual concussion.'

My tennis team spent more time filling this out than we would have if we had an actual concussion.

Some users express distrust in the app due to its low rating and limited reviews, which affects their willingness to input personal information. Approximately 5% of users are hesitant to use the app for this reason. Example: 'I don’t trust this app at all because it has less than 5,000 ratings and a 2.3-star rating.'

I don’t trust this app at all because it has less than 5,000 ratings and a 2.3-star rating.