Tencent-backed relationship communication app Couple, which raised $4.2m in 2012, has been acquired by Life360 for an undisclosed sum.

Couple, a US-based couples communications app developer backed by internet company Tencent, was purchased by Life360, a social network for family members, for an undisclosed amount on Friday.

Couple functions as a private messaging app for couples that are in a relationship. The app also includes features such as a shared calendar, lists and photo and video sharing.

The Couple app will continue to operate as a standalone product, but will integrate functionality for its four million users to easily…