Simple, no instructions needed, and it's accurate. It easily displays a "touch trail" of dots showing how often the screen sensor reads finger touches and drags, plus the dots are bigger showing pressing harder on the screen. You can easily see how often the screen registers touch by speed by changing how fast you drag your finger across the screen. It's also good and finding weak or dead spots on your screen, especially where your virtual keyboard is located on your screen if you type a lot (texting, email, filling in web forms, etc.). Note: there's no UI in this app, so I hope this helps others: 1. To exit the app, use the Android "back" icon (the left arrow-like icon). If it doesn't show, drag the bottom edge of your screen upwards to make the system icons appear, including the "back" icon. 2. To clear the screen, touch and hold a single spot on the screen and the currently displayed "dot trails" will gradually disappear. 3. Remember, the harder you press, the bigger the dots appear.
209 people found this review helpful
It's actually helpful because it detects where the self touch sensitivity is happening on the screen, I only wish if you were able to include some touch repairs or collaborations to help fix this self touch problem
13 people found this review helpful
Good test tool but might want to make it so the line color and backround color could be changed, recommendation of the primary colors and B&W. A pixel test screen would be an additional benefit. Did not see a differance between line and dot mode. Did not use zoom. Everything else worked well and as assumed.
163 people found this review helpful