Save the APK file to your device's "Downloads" folder.
If you encounter a "No Certificates" error, try uninstalling any previous versions of the app before reinstalling. BSSoft for Android - Download the APK from Uptodown Download BSS base apk
Go to Settings > Security and toggle on Unknown Sources to allow installation from files not on the Play Store. Save the APK file to your device's "Downloads" folder
BSSoft for Android - Download the APK from Uptodown. Apps / Productivity / Personal / BSSoft. Base Apk for Android - Search on Google Play - GEMS BSSoft for Android - Download the APK from Uptodown
If you are looking for the productivity tool BSSoft , the APK can be found on reputable third-party sites like Uptodown .
If "base apk" refers to the core file of a specific application like PokitPal's "Base," it is available through platforms like Softonic . How to Install a Base APK