You typically cannot download it from the App Store. It requires sideloading via tools like AltStore using a computer. Community Perspectives

FilzaEscaped is a specialized file manager for iOS that provides . It works by leveraging kernel exploits to bypass Apple’s sandbox, allowing users to read and write to system directories typically locked away. Key Features

Enables "jailed" users to perform minor customizations like changing carrier names or unlocking high graphics settings in games. Performance & Stability

“There is literally no way to brick with filza escaped as rootfs is mounted as READ ONLY by default... the only way you would be able to brick is if a malicious app or package deliberately remounts the rootfs.” Reddit · r/jailbreak · 3 years ago

Because it relies on exploits, the app is notoriously unstable. It often requires multiple attempts to open, and crashes/reboots are common during the "escaping" process.