# libSoftphone SDK for Android and iOS

**libSoftphone SDK** for Android is Java-based and compatible with Kotlin and Java.
For iOS, the SDK is available in Swift and Objective-C.

**Demophone** is a sample VoIP application published by Acrobits and can be used as a reference implementation before integrating the SDK into your own project.

Use the pages below to start integrating libSoftphone SDK:

- [Demophone](demophone.md)
- [Quick Start Guide](quick-start.md)
- [Getting Started with Android libSoftphone](getting-started-android.md)
- [Getting Started with iOS libSoftphone](getting-started-ios.md)
- [Call Transfers and Call Forwarding](transfers.md)