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281 Stars 99 Forks Apache License 2.0 292 Commits 13 Opened issues


Flutter Plugin for Square In-App Payments SDK

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Flutter plugin for In-App Payments SDK

Build Status Pub

The Flutter plugin for Square In-App Payments SDK is a wrapper for the native Android and iOS SDKs and supports the following native In-App Payments SDK versions:

  • iOS: 1.5.4
  • Android: 1.5.4

Additional documentation

In addition to this README, the following is available in the flutter plugin GitHub repo:

Build requirements


A version of Flutter greater than 1.12 is required for v2 embedding support. Any application that uses v1 embeddings for android will still be backwards compatible and supported.


  • Android minSdkVersion is API 24 (Nougat, 7.0) or higher.
  • Android Target SDK version: API 29 (Android10, 10).
  • Android SDK build tools: 26.0.3
  • Android Gradle Plugin: 3.0.0 or greater.
  • Support library: 27.1.1
  • Google Play Services: 16.0.1
  • Google APIs Intel x86 Atom_64 System Image


  • Xcode version: 10 or greater.
  • iOS Base SDK: 12 or greater.
  • Deployment target: iOS 12.0 or greater.

In-App Payments SDK requirements and limitations

  • In-App Payments SDK cannot issue refunds. Refunds can be issued programmatically using the Refunds API or manually in the Square Dashboard.

Sample applications


Copyright 2019 Square Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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