Despite Roombelt is a website you can easily get the same experience you usually get with native apps on Android and iOS. You only need to add Roombelt to the home screen on your devices as described in this article. After adding Roombelt to home screen you will need to connect the device again in the Roombelt administration panel.
Note: Roombelt provides dedicated app for Philips professional devices. For more information refer to this page.