Good app, deceiving upgrade practices

The app is good. I was looking for an app to play my audiobooks at 2x and this does it. Also has very nice ways to import a book. The problem is when I went to upgrade to "pro" version I paid the $1.99, BUT that wasnt it. I had to pay an additional $0.99 to get rid of the ads. I felt VERY DECEIVED and would head this warning when looking to upgrade. Otherwise this would have been 5 stars.

Realist3925 about MP3 Audiobook Player