After the company bought Toopher earlier this year, Salesforce has bought the artificial intelligence calendar app for iOS, Tempo. With this, the app will no longer accepting new users and will be shut down on June 30.

Earlier this year, Salesforce itself bought a mobile authentication startup Toopher. And last year, the firm has introduced the Wave cloud-based analytics app. Now, Salesforce has reportedly acquired Tempo, a startup that produced a smart calendar app of the same name.

Salesforce's acquisition over Tempo made known to public via Tempo's official website. According to the statement, Tempo is excited to work with Salesforce, as it would allow them to expand their reach. It was also added the Tempo app is set to be shut down on June 30 this year and is no longer accepting new users.

Users who bought for the iOS app can ask for a refund through Apple's App Store. Terms of the deal weren't further discussed.

Tempo AI, Inc. was founded in 2011 by Raj Singh, Corey Hulen, and Thierry Donneau-Golencer. But Tempo made its public debut and the startup that had raised $10 million in 2013. Investors include Eniac Ventures, Golden Venture Partners, Horizon Ventures, Mayfield Fund, Miramar Venture Partners, Qualcomm Ventures, Relay Ventures, Seavest Capital Partners, Sierra Ventures, SingTel Innov8, and SRI International.

Furthermore, Salesforce's move follows Microsoft's possession of calendar app Sunrise earlier this year. Same thing also with Google, which bought a startup with an app -Timeful-automatically puts activities on calendar based on one's input.

For now, it is not certain if Salesforce will take advantage Tempo's technology or if they are going to use Tempo's engineering power to launch new products.

Previously, the cloud company was rumored to be purchased by Oracle Corporation (NYSE:ORCL), Microsoft Corporation (NASDAQ:MSFT), and SAP SE (NYSE:SAP). The speculations, however, dropped completely debunked after Microsoft and SAP.