Applies to: Reader SDK - Android | Reader SDK - iOS
Learn how to take cash and credit card payments with the Android and iOS Reader SDK sample application.
Warning
The Square Reader SDK is deprecated and will be retired on December 31, 2025. The SDK is no longer receiving new releases and support for new operating systems isn't guaranteed.
The Mobile Payments SDK launched as the successor of the Reader SDK and is now in General Availability (GA). To ensure continued support and functionality, you should migrate your application from the Reader SDK to the Mobile Payments SDK before the retirement date.
Follow this quickstart to begin taking cash and credit card payments with the Android and iOS Reader SDK sample application:
The Reader SDK lets you take cash payments in addition to credit card payments. This Quickstart begins with cash transactions, which you can do right away, even without deploying the sample application to a physical device.
To take a credit card payment, you must deploy the sample application to a physical device and have a Square Reader available.