Don't Bother, Tweetcaster hasn't supported app in at least 1 year – TweetCaster for Twitter Review

The idea and functionality of app is awesome except uploading photos from camera roll. You can add take a photo or last photo taken but can't access your camera roll because it's behind the keyboard. Sad...was a great app and same complaints are in reviews of pro version.
Review by Bill Cobb on TweetCaster for Twitter.