Viber, the free calling and messaging app that Rakuten bought for $900 million, has released a significant update for its iOS app that introduces a new flat design and a number of additional features.

Viber for iOS 4.2 now sports an iOS 7-like layout — which the company describes as “clean and flat” — with a stronger focus on multimedia. Users can now share multiple images at the same time, while they can also record and share longer video messaging and block specific phone numbers. Finally, the indicator that the other person is typing has been switched on for the Android tablet app, and its Linux, Windows and Mac versions.

viber 730x525 Viber for iOS gets a new flat design, multiple image sending and longer video messages

Rakuten recently told us that it has plans to integrate Viber with its e-commerce services, so the app’s 200 million-plus users can expect plenty more changes in the future.

➤ Viber for iOS

Related: Rakuten’s $900 million strategy is to transform Viber into Line. But it won’t be easy.