If the verdict is “dump ’em”, you’re going to need KillSwitch. Launched, darkly enough, on Valentine’s Day this year, KillSwitch answers the growing need to eliminate your relationship’s online footprint. You have to be Facebook friends with your ex to use the app; you can then select them from a list and the app will trawl your profile for content — from photos and wall posts to tagged posts and statuses — that is linked to their Facebook account. You can either indiscriminately delete the content or manually destroy the proof of certain interactions. If you’re one of those couples who will always be a couple, the app stores all of the deleted content in a folder so that you can restore it in the event of happy reconciliation. It’s currently only available on Android but an IoS version is promised soon.