Why isn't Tiny Password in the Google Play store any more?

Factual Questions
1

Okay, so, replacement Android device came in the mail.
Migrated all my data over, went to reinstall my previous password app, and I can’t find it to download.
Here’s the app:
http://tinycouch.com/tinypassword/

It used to be on the market, and now not so much.
What went on to change that?

2

Hmmm.
Here’s one possible hint:

It had an exploit…

3

Excuse me.
Scratch the whole question, it’s available here, not sure why most of my links to it fail:

https://play.google.com/store/apps/details?id=com.tinycouch.android.freepassword