Hey all,
As you have noticed, Frost has unfortunately been pulled down from the play store due to violations of forwarding traffic to a particular site (m.facebook.com). I'm not sure if this was picked up by the Google team themselves, or if an opposing app decided to flag me for this reason. It is pretty upsetting that only I have been flagged, but either way, it seems quite unlikely that it will go back again. I considered filing a request to address this, but I feel like it would be a never ending battle, and frankly not worth my time.
The good news is that the app is fully open source, and that I have an apk source you can download from:
https://github.com/AllanWang/Frost-for-Facebook-APK-Builder/releases/tag/v1885
The version above is the latest release as of this date.
The bad news is that pro will no longer work, since it isn't bound to the play store. For existing users, it should be just fine, so long as Google continues to honour the payments.
So what is going to happen with Frost? As of now I'm not sure. I'm a full time university student and I haven't been able to devote as much time to Frost compared to the summer, but it's not a project I plan on ditching soon. I still use the app myself, and Facebook is a relatively important means of communication. For now, the most likely route seems to be a main release to F-Droid. This will mean that I have to remove crashlytics, the bug tracking (closed source) library, but it may also mean that I will go fully FOSS and release everything for free with donation options.
Given that Frost has become quite mature, and continues to live on Google Play for those who have downloaded it, I think the pro version will continue to be a worthy purchase for those who got it, if even to support the development. However, if you feel like this change affects your decision and you've bought it after March 1, 2018, you can feel free to reach out to me with your purchase token and I will refund you.
As a final note, Frost was never meant to be just for the money. Unlike some of the other applications, I don't inject ads in the free version so I can benefit from the user base. Frost has always been about offering a better solution, and in helping other developers in the process. My activity here will increase again when summer break is here, and for those of you who stick around, prepare to see more great things to come.