Note that SMMWE generally does not support Android 6.0 or older ; a more modern OS version is required for stability.
If you cannot access community levels, you must verify your account through the official Discord server using the /verify command. Why Use SMMWE? Super Mario Maker World Engine 4.0.0 Download Android Fix
Go to your Android Settings > Security and toggle on "Install from Unknown Sources" to allow the APK installation. Note that SMMWE generally does not support Android 6
While previously restricted to Spanish, v4.0.0 introduces official translations for English and Portuguese . locate the downloaded SMMWE_4.0.0.apk
Open your file manager, locate the downloaded SMMWE_4.0.0.apk , and tap to install.