iOS

FingerprintJS Pro identification in native iOS apps

FingerprintJS Pro's native iOS integration allows developers to integrate device identification logic into native iOS apps. Visit the official GitHub repository for examples and package downloads.

Please note that this agent requires your public API key because it's using FingerprintJS Pro identification API internally.

For native device fingerprinting for Android, please go to Android agent

Installing the agent

CocoaPods

Specify the following dependency in your Podfile:

pod 'FingerprintJSPro', '~> 1.1.0'

Swift Package Manager

Add the following dependency to your Package.swift.

dependencies: [
    .package(url: "https://github.com/fingerprintjs/fingerprintjs-pro-ios-integrations", .upToNextMajor(from: "1.1.0"))
]

Import in the code

import FingerprintJSPro

Get the visitor identifier

Retrieve the visitor identifier using your public API key. You can find your public API key in your dashboard.

FingerprintJSProFactory
    .getInstance(
        token: "<<browserToken>>",
        endpoint: nil, // optional
        region: nil // optional
    )
    .getVisitorId { result in
        switch result {
        case let .failure(error):
            print("Error: ", error.localizedDescription)
        case let .success(visitorId):
            print("Success: ", visitorId)
        }
    }

How unique and stable is the visitorId?

The ID is completely unique for every device and it remains the same after the application is reinstalled. Only factory reset can wipe it out – which is a common and legal case (the device may be resold or gifted to another person).

Params

  • token: string - public API key from the FingerprintJS dashboard
  • endpoint: URL? - nil for default endpoint, possible format for custom endpoint: URL(string: "https://fp.yourdomain.com")
  • region: String? - nil for the Global region, eu for the European region

Tag support to associate custom data with each identification event

FingerprintJSProFactory
    .getInstance(
        token: "<<browserToken>>",
        endpoint: nil, // optional
        region: nil // optional
    )
    .getVisitorId(tags: ["sessionId": sessionId]) { result in
        switch result {
        case let .failure(error):
            print("Error: ", error.localizedDescription)
        case let .success(visitorId):
            print("Success: ", visitorId)
        }
    }

Params
You can find your public API key in your dashboard. Params format and properties are the same as in JS agent

The full example content view for SwiftUI with configured iOS agent looks like:

import SwiftUI
import WebKit
 
struct ContentView: View {
    var body: some View {
        Webview(url: URL(string: "https://eager-hermann-4ea017.netlify.app")!) // this URL should refer to the webpage with injected and configured fingerprintjs-pro
    }
}
 
struct Webview: UIViewRepresentable {
    let url: URL
 
    func makeUIView(context: UIViewRepresentableContext<Webview>) -> WKWebView {
        let webview = WKWebView()
 
        let vendorId = UIDevice.current.identifierForVendor.flatMap { "'\($0.uuidString)'" } ?? "undefined"
        
        let script = WKUserScript(source: "window.fingerprintjs = { 'vendorId' : \(vendorId) }", injectionTime: .atDocumentStart, forMainFrameOnly: false)
 
        webview.configuration.userContentController.addUserScript(script) 
 
        let request = URLRequest(url: self.url, cachePolicy: .returnCacheDataElseLoad)
        webview.load(request)
 
        return webview
    }
 
    func updateUIView(_ webview: WKWebView, context: UIViewRepresentableContext<Webview>) {
        let request = URLRequest(url: self.url, cachePolicy: .returnCacheDataElseLoad)
        webview.load(request)
    }
}

Additional resources


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