# Fraud detection SDK

> What the Ironchip fraud detection SDK captures in your app and which platforms it supports (Android, iOS, Flutter, and web), with the latest version of each.

URL: https://docs.ironchip.com/en/fraude/sdk/

The SDK is built into your mobile or web application. On every sensitive operation it collects signals from the device and its environment and sends them to the engine, which returns a risk report you can read through the [API](https://docs.ironchip.com/en/fraude/api/).

The Ironchip mobile SDK captures device information, location-related signals (GPS, Wi-Fi), and user sessions to help differentiate attackers from legitimate users. To gather the risk assessment from the [API](https://docs.ironchip.com/en/fraude/api/), start by installing and configuring the SDK.

## Supported platforms

The following are the latest SDK versions for each platform:

| Platform | Latest version | Guide                                  |
| -------- | -------------- | -------------------------------------- |
| Android  | 1.2.26         | [Android SDK](https://docs.ironchip.com/en/fraude/sdk/android/) |
| iOS      | 1.2.10         | [iOS SDK](https://docs.ironchip.com/en/fraude/sdk/ios/)         |
| Flutter  | 2.0.29         | [Flutter SDK](https://docs.ironchip.com/en/fraude/sdk/flutter/) |
| Web      | 1.0.0          | [Web SDK](https://docs.ironchip.com/en/fraude/sdk/web/)         |

See the [release history](https://docs.ironchip.com/en/fraude/referencia/versiones/) of all the SDKs.

## Flow of an operation

1. The app initializes the SDK with its API key.
2. On a sensitive operation (login, transfer, adding a beneficiary), the app asks the SDK to send a transaction with its own `transaction_id`.
3. The engine evaluates the operation and generates the report.
4. Your backend requests the report by `transaction_id` and decides: continue, ask for verification, or block.