Aside from about 2-3 features, Springtomize 3 is working on iOS 7.1.1, I can't say for 7.1.2 but I'm expecting it to have a lot of issues (as well as other packages) on 7.1.2 because of some of the changes Apple has made. I don't personally own LockInfo7 since I've only used the trial version of it, but again, if you're on 7.1.2, you may have issues with it since the last update for LockInfo7 was about 5 days before the release of 7.1.2, and has yet to be updated/toned out for 7.1.2 support. Since you've bought the package, you can attempt to email the dev and see if you can help beta test for them.