Tethered vs. Untethered Jailbreak: Key Differences Explained
Tethered jailbreak means your iPhone must be plugged into a computer every time it reboots to keep the jailbreak alive; untethered jailbreak lets the device restart freely while staying jailbroken.
Users mix them up because both unlock the same tweaks, yet only one survives a dead battery on the subway ride home—that single reboot can turn a “liberated” phone into an expensive paperweight.
Key Differences
Tethered requires a PC/Mac and a boot tool after every restart; untethered never asks for a cable again. Tethered exploits are usually easier to find and release first, while untethered exploits are rarer and patched faster by Apple, affecting availability.
Which One Should You Choose?
If you rarely reboot and always near a computer, tethered saves time today. If you travel, rely on alarms, or dislike cables, wait for an untethered release—even if it means staying on an older iOS longer.
Examples and Daily Life
Picture boarding a flight: tethered jailbreak dies during security check, leaving you with no boarding pass app. Untethered jailbreak survives the same reboot, and you keep your themed icons and ad-blocking tweaks intact for the whole trip.
Does updating iOS remove the jailbreak?
Yes. Any iOS update overwrites the exploited kernel, reverting the device to stock and usually closing the hole for future attempts.
Can I switch from tethered to untethered later?
Only if developers release an untethered tool for your current iOS version; otherwise, you must restore and wait for a new exploit chain.