Apk Analyzer is a popular app analysis tool available on Google Play. It is an open-source and ad-free app that provides a detailed report of installed apps and .apk files stored on the device. The app report includes information such as app naming and version data, target and minimal Android versions, install and update dates, certificate and app sign data, used permissions with descriptions, activities with launch options, services, broadcast receivers, and content providers, required and optional hardware features, and the full version of AndroidManifest.xml with save option. The app also allows users to save installed apps to device storage and share them.

One of the unique features of Apk Analyzer is that it can show an app report even before installing an APK file. This can be useful for users who want to know more about an app before installing it on their device. Additionally, the app allows users to decode the main metadata file AndroidManifest and save it as a readable XML to an external storage. This feature can be helpful for developers who want to analyze the code of an app.

Apk Analyzer also provides information about app permissions. Users can list all permissions requested by apps on their device, find out the most commonly used permissions and apps which request them, list apps requesting permission, and explore the protection level. The app also provides statistics data of the user's app collection, such as the distribution of Android versions among apps on the device or app signing used, the average number of activities, permissions, or distribution of Android and certificate versions.

Finally, it is worth noting that Apk Analyzer does not require a rooted device and is licensed under GNU General Public License v3. This means that the app is free to use, modify, and distribute. Overall, Apk Analyzer is a useful tool for anyone who wants to analyze and understand the apps installed on their device.