Always Visible Time and Memo is a free Android app developed by Wansoft that displays a digital clock, date, memo, and battery level on your device's screen. It's a handy tool for anyone who wants to keep track of the time and their notes while using their phone.

The app offers a variety of features, including the ability to checksecond, milliseconds, and display the time automatically when watching videos or playing games. You can also turn the clock on or off using a widget or by shaking your device. Additionally, you can customize the font size, type, color, width, location, transparency, border, and shadow of the clock, as well as choose to display seconds, milliseconds, and battery level, and set the time format to 12 or 24 hours.

Always Visible Time and Memo also has a rainbow color change option and an auto-start after reboot feature. The app requires location permission to display the Wi-Fi name, but there is no disadvantage to using it if you don't grant this permission.

Overall, Always Visible Time and Memo is a convenient and customizable way to keep track of time and notes on your Android device.