BetterSight Workout is vision training app that aims to increase your visual acuity.
In Manuel Mode: Press the direction of Landolt C for correct answers. After each correct aswer, C letter will get smaller. Therefore challenge will increase.
In Speech Mode or in Snellen Workout: You don't have to hold your phone. Say the letter direction(C Workout) or a random word that starts with the letter you see on the screen(Snellen Workout). After each correct answer, the letter on the screen will get smaller.
The restoration of vision is not guaranteed. It is recommended that you seek medical advice if necessary.