I want to show a tooltip whenever user clicks an image in my app. I just want to know whether it is possible to show tooltip in an iOS app.
I had a similar problem and ended up writing my own custom tooltip. It might be a solution for you.
You can init with your custom view (i assume you write some delegations to detect actions within.) and present from anywhere.
Maybe not the best replacement of UIPopoverController but still works great. And a lifesaver for iPhone. Also highly customisable.
https://github.com/akeara/AKETooltip
Hope this helps.