UPDATE: After a not-too-long wait, the app was fixed for iOS 9, and it is back to being one of my most used apps. Thanks!
This has probably been my single most used app for over two years. The interface is easy, and it syncs beautifully with Google tasks. My first complaint and only complaint is that it currently does not work for iOS 9. It immediately crashes. I tried reinstalling it, which only worked the first time I opened the app. This has app been so reliable and helpful that I will probably wait another week or two for it to be updated, but after that I will reluctantly move on.
Tjvonp about GoTasks