As I started programming my #Twitter client #SH1TT3R I used #Twitter4j library. I learned a lot about android app developing. My app was downloaded over 4000 times from github. Now, Twitter has reatricted my API access to read-only. That happened while I was working on #Mastodon support. Now my app supports Mastodon almost completely. Twitter still refuses to answer my support request after three weeks.