> As others have mentioned, Apple disallows time bombs
Yes, I did not know this. I don't understand the reason behind this rule, but as a user I find time-limited trials annoying. I prefer to have a trial version where I can use all the functionality but with a limited amount of data. For example, a task management app may restrict the number of tasks I can create. This way, hitting the limit is a good indication that the app is useful for me. Hitting a time limit doesn't actually mean anything, while crippling the functionality itself means I can't really try out the app.
> you now have a bunch of customers running with Foo, except with Foo Pro functions unlocked. And you also have a bunch of customers running around with just Foo Pro.
What I suggest is to not have Foo Pro at all. Just one version, Foo, which is free and can be unlocked.
> The second part of this mess is that, unlike app purchases, users cannot see which in-app purchases they already own.
I agree this is a mess, but remember that not too long ago there was no way to see app purchases either. So there is some hope this information will be added soon.
Yes, I did not know this. I don't understand the reason behind this rule, but as a user I find time-limited trials annoying. I prefer to have a trial version where I can use all the functionality but with a limited amount of data. For example, a task management app may restrict the number of tasks I can create. This way, hitting the limit is a good indication that the app is useful for me. Hitting a time limit doesn't actually mean anything, while crippling the functionality itself means I can't really try out the app.
> you now have a bunch of customers running with Foo, except with Foo Pro functions unlocked. And you also have a bunch of customers running around with just Foo Pro.
What I suggest is to not have Foo Pro at all. Just one version, Foo, which is free and can be unlocked.
> The second part of this mess is that, unlike app purchases, users cannot see which in-app purchases they already own.
I agree this is a mess, but remember that not too long ago there was no way to see app purchases either. So there is some hope this information will be added soon.