Her is what Plugin developer guidelines say:
“Trialware is not allowed in the repository. It’s perfectly fine to attempt to upsell the user on other products and features, but a) not in an annoying manner and b) not by disabling functionality after some time period.
Similarly, you cannot “cripple” functionality in the plugin and then ask for payment or provide a code to unlock the functionality. All code hosted by www.ads-software.com servers must be free and fully-functional. If you want to sell advanced features for a plugin (such as a “pro” version), then you must sell and serve that code from your own site, we will not host it on our servers.”
https://developer.www.ads-software.com/plugins/wordpress-org/detailed-plugin-guidelines/