Good morning Programmers

I've been a ghost reader on this thread for months, thanks for the lesson and your devoted time. I'm not a professional programmer, in short, I have little knowledge about programming. I have an ambission to build an app which I have done but facing lots of challenges while testing it.

I need your help in:

1. creating a free trial before they can purchase the full version and the full version laps for just a year.

2. Creating the app in such a way that, only one device can use one product key i.e if the product key is input to another device it won't work.

How can I do it?
Looking forward to your contributions

My number 07064658830

Thanks

Legolast:
Good morning Programmers

I've been a ghost reader on this thread for months, thanks for the lesson and your devoted time. I'm not a professional programmer, in short, I have little knowledge about programming. I have an ambission to build an app which I have done but facing lots of challenges while testing it.

I need your help in:

1. creating a free trial before they can purchase the full version and the full version laps for just a year.

2. Creating the app in such a way that, only one device can use one product key i.e if the product key is input to another device it won't work.

How can I do it?
Looking forward to your contributions

My number 07064658830

Thanks

What programming language did u learn

I can do that.... Its easy let me give you a recap of the logic I would use
But first, what rilli are you working on, app is a generalized term, it can be android, ios or windows... Or even desktop apps

I have answered a similar question sometime ago in this section. The best way of tracking a user's uniqueness will be a combination of IMEI, phone and email. If you don't need device uniqueness, remove IMEI from this list.

This combination will not just be difficult for regular users to bypass, but even hackers, if you manage user authentication properly.

I can get this done for you. You can contact me via info in my signature.