# Open source software

> Review the open source software used in the Tapjoy SDK.

The Tapjoy 13.4.1 SDK uses the following open source libraries:

(Updated April 17, 2024)

## Android

* GifImageView ([MIT-style license](https://github.com/felipecsl/GifImageView/blob/master/LICENSE))
* Square Wire ([Apache v2.0 license](https://github.com/square/wire/blob/master/LICENSE.txt))
* Google Guava ([Apache v2.0 license](https://github.com/google/guava/blob/master/LICENSE))
* Okio ([Apache v2.0 license](https://github.com/square/okio/blob/master/LICENSE.txt))
* Protobuf ([Google license](https://github.com/protocolbuffers/protobuf/blob/main/LICENSE))

## iOS version

* WebViewJavascriptBridge ([license](https://github.com/marcuswestin/WebViewJavascriptBridge/blob/master/LICENSE))
* XMLDictionary ([license](https://github.com/nicklockwood/XMLDictionary/blob/master/LICENCE.md))

## Unity plugin

* SimpleJSON ([MIT-style license](https://github.com/Bunny83/SimpleJSON/blob/master/LICENSE))
* External Dependency Manager for Unity ([license](https://github.com/googlesamples/unity-jar-resolver/blob/master/LICENSE))
* All the libraries listed in the iOS and Android sections

## AIR

* All the libraries listed in the iOS and Android sections

> **Note:**
>
> If you have questions about previous versions of the SDK, contact [legal@tapjoy.com](mailto:legal@tapjoy.com).