Boundo is a free utility and tools app developed by Clifford Liu for Android devices. This app primarily focuses on checking the Android API level of all apps and apks on the device. It also provides the ability to check adaptive icon support for all apps.

In addition to API checking, Boundo offers various features such as app API statistics, APK and icon extraction, and package details with signature details. This allows users to gather detailed information about the apps installed on their device.

Boundo also includes features for app shortcuts and quick settings tiles. Users can access a screen barcode scanner quick settings tile for Alipay and WeChat, as well as a month data usage quick settings tile.

For image modifying, Boundo allows users to modify resolution and format (png, jpg, webp, heif). It also offers the ability to blur images.

Another feature of Boundo is themed wallpaper. Users can make their wallpaper comply with the Android 10 dark theme by applying a dark-color wallpaper automatically.

For users with Wear OS smartwatches, Boundo provides the ability to check the Android API level of all apps on the smartwatch.

Overall, Boundo is a comprehensive app API checker with additional utility features. It provides users with detailed information about their apps and offers handy tools for modifying images and managing quick settings tiles. The app is available for free on the Google Play Store.