The Cydia Tweak AutoResponder 3 has been officially released and works with devices that have iOS 8 or higher. AutoResponder 3 cydia tweak lets you to set a custom message, that is automatically sent to the person who sends you a text message over SMS or iMessage. This tweak is great for times when you are away from your phone or are too busy to reply.
Once installed, The tweak adds a preferences pane to the Settings application where you’ll be able to configure your automatic replies on a per-person basis. You can also set up a White List for people that you want to be able to reply to yourself and not receive an automatic reply.
If you are interested, then you can download AutoResponder 3 from the BigBoss repository in Cydia just $2.99. To install this program requires a jailbroken device (see if and how you can do the jailbreak to your iPhone by clicking here) and you need an Internet connection to download the package. This tweak is compatible with iOS 8.0 and later versions of the mobile operating system from Apple.