Any suggestions on 3rd party license management solutions to add a time trial on my compiled MatLab programs?

We are looking for a simple 3rd party SDK, or other solution, that would allow our MatLab developers to add time expiration to compiled MatLab programs that are distributed to our customers.

We could develop this ourselves by searching for a license file and check the date, or even encrypt this file to add an extra layer of headache for someone to change the date. Just curious if other MatLab users have used any 3rd party software license management solutions successfully.

The goal is for our end-user to install the compiled MatLab program and have permission to run for x number of days.

Any suggestions?