Google has finally acquired Twitter – well, some of it anyway. The tech giant has acquired mobile app development platform Fabric, along with its crash reporting system Crashlytics, from Twitter for an undisclosed sum.

Fabric, introduced in 2014, will join Google’s Developer Product Group – working with its mobile and web application platform Firebase. The acquisition will also include Fabric’s Answers and Fastlane tools.

“We expect that Crashlytics will become the main crash reporting offering for Firebase and will augment the work that we have already done in this area. While Fabric was built on the foundation of Crashlytics, the Fabric team leveraged its success to launch a broad set of important tools, including Answers and Fastlane,” said Francis Ma, Firebase product manager, in a blog post.

“Well share further details in the coming weeks after we close the deal, as we work closely together with the Fabric team to determine the most efficient ways to further combine our strengths. During the transition period, Digits, the SMS authentication services, will be maintained by Twitter. The integration of Fabric is part of our larger, long-term effort of delivering a comprehensive suite of features for iOS, Android and mobile Web app development.”