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.

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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.