---
title: Third-party libraries license - iOS
description: Contentsquare iOS SDK includes several third-party libraries, which are licensed under their own respective licenses
lastUpdated: 16 March 2026
source_url:
  html: https://docs.contentsquare.com/en/csq-sdk-ios/experience-analytics/third-party-libraries-license/
  md: https://docs.contentsquare.com/en/csq-sdk-ios/experience-analytics/third-party-libraries-license/index.md
---

The CSQ SDK for iOS includes third-party libraries; the tables below list each library, its license, and copyright notice.

## Core SDK

| Libraries | License | Copyright |
| - | - | - |
| SwiftProtobuf | Apache-2.0 license | Copyright (c) 2014 - 2017 Apple Inc. and the project authors |

## Error Analysis SDK

| Libraries | License | Copyright |
| - | - | - |
| PLCrashReporter | MIT | Copyright (c) Microsoft Corporation. and the project authors |