Twitter has acquired Clutch.io, a platform for developers to do A/B testing with their apps in a deal whose terms were not disclosed.

Clutch.io founders Eric Florenzano and Eric Maguire announced the deal in a blog post on their site, explaining that their mission “has been to help mobile developers iterate fast and grow their user base.  Now, as part of Twitter’s growth & international team, we’re excited for the opportunity to focus our efforts on Twitter’s product at a large scale.”

So what happens to the apps of Clutch.io’s current users? The blog explains more: “We’re happy to announce that over the coming weeks we will make available everything you need to run Clutch.io on your own servers, so that even after our hosted service is no longer running, you can continue to operate it on your own.  We plan on leaving our hosted service active and supported until November 1st.”