Try out versions

Hello there,

This question been asked many times, I tried to look for answers and could find one. I am looking for a proffissional answer from Apple.

Many of us (apple users- Mac or ios) who use Apple app store, spent some money for no good on some scam apps or not enough detailed description on the App store. Why there is no a try out versions for the apps? as an example, Payment should be made if the user likes the app after a certain time from 1 hour to 1 day. I have spent a good money on some apps that I regret paying for after been tricked by te discreption on the app.

I believe this request been made by many of apple users.

Thank you