Last week I mentioned the ClusterPrePermissions library that increases the percentage of people granting access to your app to use photos and contacts by asking the user for pre-permission before really asking permission to use photos and contacts.
Here’s a submission from Joe Law that expands on this concept but also allows you to add pre-permission dialogs for push notifications, reminders, and the calendar in addition to photos and contacts called JLPermissions.
Like ClusterPrePermissions with JLPermissions you can customize the alert presented to the user when they are asked for pre-permissions.
You can find JLPermissions on Github here.
A nice easy way to increase your chances of the user granting access.