TECH CRUNCH - Feb 3 - Tenthbit, the mobile app studio behind the couples app Pair, has bought Cupple, a UK-based rival mobile app for two people only, and has rebranded itself as Couple. Financial terms of the deal were not disclosed. Tenthbit raised a seed round of $4.2M in May 2012. Cupple will, for now, remain as a standalone app, but users will have the ability to migrate their data to Couple from Cupple if they choose. Cupple did not disclose current usage figures, downloads or geographical reach. Pair meanwhile notes 1.25M messages sent every day, 160m messages between couples to date and 800K downloads.