Removing unwanted apps from your iPhone is a straightforward affair — long-press an app's icon, then hit the delete button once it appears. Unfortunately, the same can't be said when it comes to uninstalling tweaks from a jailbroken iPhone, which is a little more tedious to perform.
Many tweaks aren't as highly polished as their Apple-sanctioned counterparts, and they can cause buggy performance, along with other issues on your iPhone. Similar to stock iOS apps like Safari and Photos, jailbreak tweaks you've installed through either Cydia or Sileo are embedded into your iPhone's operating system and can't be uninstalled outright. Therefore, you'll need to go through either Cydia or Sileo if you want to remove a tweak from your device.
If you're using Cydia, check out our guide on uninstalling tweaks in Cydia. For those of you who prefer Sileo over Cydia, open Sileo, and select "Packages" on the bottom to get to the page that lists all the tweaks and apps currently installed on your iPhone. From there, scroll through the alphabetically organized list until you find the target tweak, then tap on it to proceed.
Now, tap on "Modify" within the app's Details page, then hit "Uninstall" from the menu prompt that appears. Upon doing so, a "Queued" card will pop up along the bottom containing the package (aka tweak) you want to remove.
To wrap up the tweak's removal, either tap or swipe up on the "Queued" card to reveal it in full, then select "Confirm" to proceed with deletion. Sileo will now remove the tweak from your iPhone, so wait a moment for the process to complete, and hit "Restart Springboard" once it's done to complete uninstalling the tweak.
The good thing about the "Queue" process is that you can actually queue up multiple tweaks to uninstall at the same time, which would be quicker than doing each individually.
After your iPhone resprings, you'll now see that your home screen or Setting app is free of any unwanted or outdated tweaks that may conflict with iOS. It's worth noting that you can use Sileo to remove any jailbreak tweak or package, even if you originally installed it through Cydia (and you can use Cydia to remove Sileo tweaks).