"App not installed" error. Solution: You have a conflicting signature. Uninstall any previous Naruto Senki or Naruto Senki Mod completely. Reboot your phone, then install.
The digital wind howled across the home screen of a weathered smartphone as the player’s thumb hovered over the icon for Naruto Senki Final Mod (V1.17) Naruto Senki Final Mod By Riicky V1.17 Apk - Adadroid Fix
Since this is a modified APK, you will not find it on official app stores. Follow these steps to install it safely: "App not installed" error