3G4G Config Dz is a free Android app developed by Dz_Does that provides APN configuration settings for the three major mobile operators in Algeria: Mobilis, Djezzy, and Ooredoo. With this app, users can easily determine if they are connected to 2G, 3G, or 4G networks and copy the corresponding configuration settings for their operator.

One of the app's standout features is its floating interface, which allows users to configure their APN settings without having to switch between the app and the configuration window. However, it's important to note that the app only provides information on APN settings and cannot create them automatically due to changes in the Android 4.2+ API.

Overall, 3G4G Config Dz is a useful tool for Algerian mobile users who want to ensure they are properly configured for optimal network performance. For more information or suggestions, users can visit Dz_Does' Facebook page.