While iOS devices have a built-in Files app, it may not offer the level of functionality and customization you need. A third-party file manager like Filza can provide more advanced features and flexibility, making it easier to manage your device's files.

Q: Do I need a jailbroken device to install Filza? A: No, you can install Filza on a non-jailbroken device using an IPA downloader tool like Cydia Impactor or AltStore.

By following the steps outlined in this guide, you should be able to download and install Filza on your iOS 9.3.5 device.