Makes you tap on an Ad app to get pro

Have no idea what the difference is between the original app and the "pro" app (I tried both) but this app says you have to download a Hotel app in order to upgrade. I saw no difference between the free app and the pro app. When you download the hotel app, it wants to take you to a website rather than opening up an app. I may be overly skeptical but this app may be earning some revenue from the "clicks" but my main concern is that we are directed to a website rather than the app working independently.

Samolin about Stretching, Flexibility: Flex