Can iPhone app be time-limited?

Question

it is OK for me to publish an app on the app store which is time limited ? meaning the user can download it for free and use it for one month and then it will lock-up until he/she purchase the full app ?

is there an apple policy which says I can't ? can you give me a link to that clause ?

thanks for your help

Answer 1

In general, No. Expiring trial apps are not allowed.

There might be exceptions for certain kinds of subscription services.

Answer 2

Take a look at guideline #2.9 at Apple's review guidelines. It's always a judgement call, of course.