If you are currently using 3.x of the iOS SDK, take a look at the migration guide to 4.x
The Handpoint iOS SDK provides a simple application programming interface for the Handpoint payment terminals.
Please note that before submitting an app to the Apple App store a MFi hardware request has to be submitted to Apple, to be able to use an external accessory. Please fill our this form before submitting your app to the App store and we will get back to you. If you have any questions, contact us for more details.