The PonChat Android app includes the following components, each provided under the Apache License, Version 2.0 (full text below):

- AndroidX Core 1.18.0 (androidx.core:core), Copyright The Android Open Source Project
- AndroidX ExifInterface 1.4.2 (androidx.exifinterface:exifinterface), Copyright The Android Open Source Project
- AndroidX Media3 1.9.2 (media3-transformer, media3-effect, media3-common), Copyright The Android Open Source Project
- AndroidX CameraX 1.6.1 (camera-core, camera-camera2, camera-lifecycle, camera-video), Copyright The Android Open Source Project
- ZXing core 3.5.3 (com.google.zxing:core), Copyright ZXing authors
- AudioSwitch (com.github.davidliu:audioswitch, a fork of twilio/audioswitch), Copyright Twilio, Inc.

The QR code scanner (扫一扫) also uses Google ML Kit Barcode Scanning 17.3.0 (com.google.mlkit:barcode-scanning, with its model in the app), provided by Google under the ML Kit Terms of Service: https://developers.google.com/ml-kit/terms
