Limit the number of times an iPhone app is used

Is there a way to limit the number of times an application is used in an iPhone (to implement the lite version)? I know I could use the UserDefaults, but if the user deletes and re-install the app, the limit would disappear.

I tought of using a webserver, but it is too much开发者_如何学运维 work for a simple problem.

Anybody had the same issue (and solved it)?

Thanks in advance.

Apple will reject the app from the store if it limits the usage of the application.

Even if the app is a "lite" version, it should still be a fully usable application - maybe it'll be missing a few features, but Apple don't like it when you put time limits or number of usages limits on apps.