: One of the most reputable alternatives. It requires a computer to "re-sign" apps every seven days but does not require a jailbreak.

: Cydia needs "Root" access to manage system-level tweaks. Apple blocks this by default for security.

: A powerful tool for specific iOS versions that allows permanent app installation without revokes, though it occupies a "middle ground" between a standard app and a jailbreak. Security Warning

: If you want the real Cydia, you must check if your current iOS version is compatible with a known jailbreak. If not, AltStore is currently the safest and most functional alternative for non-jailbroken users.

: A desktop tool that allows you to install .ipa files (the iOS version of an installer) directly onto your iPhone or iPad.