---
title: Compatibility - Flutter (classic)
description: Requirements and limitations to develop with the Flutter SDK
lastUpdated: 07 April 2026
source_url:
  html: https://docs.contentsquare.com/en/flutter/compatibility/
  md: https://docs.contentsquare.com/en/flutter/compatibility/index.md
---

> Documentation index: https://docs.contentsquare.com/llms.txt
> Use this file to discover all available pages before exploring further.

The latest CSQ SDK is here! Learn how to [upgrade your app](https://docs.contentsquare.com/en/csq-sdk-flutter/experience-analytics/upgrade-from-cs-sdk/).

Before implementing the SDK, make sure your app meets the following technical prerequisites to avoid integration issues and ensure optimal performance.

## Supported platforms

Currently, only Flutter application on the following platforms are supported by the `Contentsquare Flutter SDK`:

* Android
* iOS

Calling the SDK on other platforms is safe but will not have any effect.

If you need to use the SDK on another platform, contact our support team.

Hybrid applications are not supported. By hybrid application, we mean iOS and Android apps that integrate Flutter as an [add-to-app module ↗](https://docs.flutter.dev/add-to-app)

## Compatibility matrix

Each version of the Contentsquare Flutter SDK will be linked to specific, fixed versions of each native SDK. to make that clear, here is a compatibility table to consider when choosing your version of the bridge (refer to the Flutter SDK Changelog to know what the changes are for each version).

Note

If the Maximum Flutter Version is not specified, it means that the bridge is compatible with all versions of Flutter up to the latest one.

Warning

Versions of the SDK earlier than 3.15.0 do not support Android Gradle Plugin versions 8.4.0 and later. To ensure compatibility with AGP >= 8.4.0 , upgrade to Contentsquare Flutter SDK version 3.15.0 or later.

| Contentsquare Flutter SDK Version | iOS SDK Version | Android SDK Version | Minimum Flutter Version | Maximum Flutter Version |
| - | - | - | - | - |
| 4.1.1 | 4.46.0 | 4.44.0 | 3.27.0 | - |
| 4.1.0 | 4.46.0 | 4.44.0 | 3.27.4 | - |
| 4.0.3 | 4.45.3 | 4.43.8 | 3.22.4 | - |
| 4.0.2 | 4.45.3 | 4.43.3 | 3.22.4 | - |
| 4.0.1 | 4.45.3 | 4.43.3 | 3.22.4 | - |
| 4.0.0 | 4.45.1 | 4.43.3 | 3.22.4 | - |
| 3.19.3 | 4.45.2 | 4.41.0 | 3.19.6 | - |
| 3.19.2 | 4.45.2 | 4.41.0 | 3.19.6 | - |
| 3.19.1 | 4.43.0 | 4.41.0 | 3.19.6 | - |
| 3.19.0 | 4.43.0 | 4.41.0 | 3.19.6 | - |
| 3.18.0 | 4.43.0 | 4.40.0 | 3.16.9 | - |
| 3.17.1 | 4.42.2 | 4.39.1 | 3.16.9 | - |
| 3.17.0 | 4.42.0 | 4.39.1 | 3.16.9 | - |
| 3.16.3 | 4.40.2 | 4.36.1 | 3.13.9 | - |
| 3.16.2 | 4.40.2 | 4.36.1 | 3.13.9 | - |
| 3.15.3 | 4.38.2 | 4.34.0 | 3.10.6 | - |
| 3.14.159 | 4.37.2 | 4.33.2 | 3.10.6 | - |
| 3.13.1 | 4.36.1 | 4.32.1 | 3.3.10 | - |
| 3.12.0 | 4.35.0 | 4.31.0 | 3.3.10 | - |
| 3.11.1 | 4.33.1 | 4.29.1 | 3.3.10 | - |
| 3.10.0 | 4.32.0 | 4.28.0 | 3.3.10 | - |
| 3.9.0 | 4.31.2 | 4.27.1 | 2.8.0 | - |
| 3.8.0 | 4.30.2 | 4.26.0 | 2.8.0 | - |
| 3.7.0 | 4.29.1 | 4.24.1 | 2.8.0 | - |
| 3.6.0 (deprecated) | 4.28.0 | 4.24.1 | 2.8.0 | - |
| 3.5.1 | 4.27.0 | 4.23.1 | 2.8.0 | - |
| 3.4.0 | 4.25.0 | 4.21.0 | 2.8.0 | 3.13.9 |
| 3.3.0 | 4.24.0 | 4.20.0 | 2.8.0 | 3.13.9 |
| 3.2.0 | 4.23.0 | 4.19.0 | 2.8.0 | 3.13.9 |
| 3.1.0 | 4.23.0 | 4.19.0 | 2.8.0 | 3.13.9 |
| 3.0.0 | 4.22.1 | 4.18.1 | 2.8.0 | 3.13.9 |
| 2.3.0 | 4.21.0 | 4.17.0 | 2.8.0 | - |
| 2.2.0 | 4.20.0 | 4.16.0 | 2.8.0 | - |
| 1.3.2 | 4.18.0 | 4.15.0 | 2.8.0 | - |
| 1.2.0 | 4.13.0 | 4.13.1 | 2.8.0 | - |
| 1.1.0 | 4.13.0 | 4.13.1 | 2.8.0 | - |
| 1.0.1 | 4.13.0 | 4.13.1 | 2.0.0 | - |
| 0.5.3 | 4.13.0 | 4.11.0 | 2.0.0 | - |
| 0.4.2 | 4.12.0 | 4.8.0 | 2.0.0 | - |
| 0.3.0 | 4.11.0 | 4.7.0 | 2.0.0 | - |
| 0.2.3 | 4.10.1 | 4.7.0 | 2.0.0 | - |
| 0.1.0 | 4.3.0 | 4.1.0 | 2.0.0 | - |