On this phone and the phone I had before this, I had the exact same problems. The app worked great for a while, but once it started to mess up ...there was no fixing it. It would freeze up constantly. I would try to close the app, and sometimes it worked, but often it would just crash altogether. I'd restart it. Nope. I cleared the cache. Didn't help. I uninstalled it and reinstalled it. Doesn't help. And Twitter support? No. I still love Twitter and use it daily, but through my web browser