Omthing is a free Android app that works with the AirFree earbuds to enhance audio playback, phone calls, and Bluetooth connectivity. Additionally, it provides system updates to ensure the earbuds are always up-to-date.

One of the standout features of Omthing is its ability to customize sound settings according to your preferences. You can choose from a variety of EQ presets or adjust the levels manually to get the perfect audio experience. The app also provides a battery indicator for the earbuds, so you know when it's time to recharge.

In terms of call quality, Omthing uses noise-cancelling technology to ensure clear conversations, even in noisy environments. The app also allows you to customize touch controls on the earbuds, so you can easily access your favorite features without having to take out your phone.

Overall, Omthing is a valuable addition to the AirFree earbuds, providing enhanced audio and call quality, as well as convenient customization options.