Limit my app usage to increase the download greed among users?

Not limiting the whole app as such but the most important feature.

For example if I have 3 options x,y and z and Z being the most important, I could limit it's usage ? Like limiting option z to 1 time a day ? or 6 times a week?

Will this make user little greedy about the app? Or is it a bad idea as my users may spend less time on the app?

Need to be careful about this.

Something like: enter image description here

Update:

Basically the queries are related to Astrology and the response is given for the same.So is it OK to limit user for such queries ?

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