Checkra1n Ipa Link

that appears after a successful jailbreak or third-party attempts to bundle Checkra1n features into a sideloadable format.

Bootrom exploit foundation: Checkra1n’s underlying exploit (checkm8) is a hardware-level bootrom vulnerability; it’s unpatchable for affected devices because the bootrom is read-only. That makes jailbreak persistence possible on those devices, but any IPA is merely a delivery mechanism, not the exploit itself.
Signed/unsigned code: Distributing jailbreak functionality via an IPA requires signing (personal, enterprise, or ad-hoc). Unofficially signed IPAs often use enterprise certs or revoked/invalid signatures, causing instability or revocation risks. Users who sideload IPAs typically must trust the signer; malicious repackaging is a realistic threat.
Sandbox and system access: A correctly executed checkra1n jailbreak runs at low levels and can break iOS sandboxing and code-signing protections. An IPA that only facilitates installation will need elevated steps (reboot to DFU, host PC interaction, or kernel patches) to complete a jailbreak. Standalone IPAs claiming to jailbreak entirely on-device may be misleading unless they leverage additional exploits or require a tethered DFU step.
Persistence and security: Since checkm8 is tethered for certain devices and untethered for others depending on tooling, an IPA’s approach to persistence matters. Users should be aware that jailbreaks can weaken platform security, expose data, and enable malicious persistence if an IPA is compromised.

You cannot use the Loader IPA alone without first running the desktop exploit. Checkra1n Ipa