Recently, executer developers Script-Ware and Fluxus developed a new version of their previous executer for iOS, but now with non-jailbreak support, working on any iOS version and is Free, but supported by a couple ads…
Here is a video tutorial made by the devs.
Guide
First you will need a decrypted IPA for Roblox, you get this from armconverter, if armconverter is not currently working for you, you can get a download for the ipa from here, (from the developers as they found armconverter had crashed).
Secondly, you will need this dylib.
Sideload this dylib into the decrypted Roblox IPA using sideloadly or if your game crashes try injecting the dylib using scarlet. By pressing the middle button at the bottom, then the download button at the top right, first select the dylib, then the ipa. if you cannot see the dylib, you need to download scarlet via direct download rather than trollstore.
Once installed the modified Roblox to your phone, upon entering a game, your script executer will pop-up, and can be minimised. But first you will be asked to get a key, which you will paste to activate.
And that’s it! This should work on any iOS, I succeeded on iOS 15.3.1.
Credit
Script-Ware team
Fluxus team