I was very undecided about make it free, paid or in-app and I wasn't comfortable with none of them so I decide to release it paid and see how thing goes.

Maybe another version will be like that. Also why do you think it should be free with in-app?

Because, I myself almost never buy paid apps. I do, however sometimes buy in app purchases because they offer cool features. I just couldn't see myself buying this.

I see... I'll keep that in mind for the next big update