I'm using Android 6.0 (non-rooted) phone and looking for an application called `call tools optinno`.

*Though* it can be easily found by searching on net : https://play.google.com/store/apps/details?id=com.calltoolsoptinno , *However*, I can't find on play store by searching `call tools optinno` or by `call blocker` etc.

[![enter image description here][1]][1]

I've also tried by entering id : `com.calltoolsoptinno` on the play store but didn't get.

Note: I've scrolled down multiple times but can't find the app I'm looking for.

What's wrong with searching mechanism?


  [1]: https://i.sstatic.net/zaXlXm.jpg