DO NOT PURCHASE THIS APP. YOU HAVE BEEN WARNED...
This app has run into it's token limit from twitter. Twitter only allows a third party client 100,000 tokens. The price has been up-ed so that no one would ever buy it.
Development has not and will not be discontinued. If you have Android 5.0, "Lollipop", I have made a new application that you can use, find it here: https://play.google.com/store/apps/details?id=com.klinker.android.twitter_l&hl=en
To find out more about the current status of the app and it's future, you may view this post that I wrote: https://plus.google.com/117432358268488452276/posts/KG4AcH3YA2U