Applies to: Reader SDK - Android | Reader SDK - iOS
Use Flutter to create applications that take payments on iOS and Android.
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.
The Flutter plugin for the Reader SDK is an open source project that provides a Dart interface for calling the native Reader SDK implementations.
For more information, see the Get Started, quickstart sample application, and technical reference in the Reader SDK Flutter repo on GitHub.