Modifying system files without knowledge can lead to a broken system (bootloop), requiring a restore.
The app uses an exploit that may cause the device to reboot or respring upon launching. This is normal; simply try opening it again. Filza Escaped 12.x
Filesystem changes may persist, but the tool must be re-opened after every reboot, and apps installed this way generally need to be resigned every 7 days. Modifying system files without knowledge can lead to
) on iOS 12, offering many capabilities of a jailbreak (like theming or file editing) without fully installing a jailbreak package manager like Cydia. Key Features & Capabilities Filza Escaped 12.x