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Mobile SDK: Protect iOS & Android App APIs

Wesley Ellis
Oct 16, 2026
12 min read

Extend G8KEPR's protection to your iOS and Android mobile apps with native SDKs. Includes certificate pinning, device fingerprinting, jailbreak/root detection, and network traffic encryption - all with zero impact on user experience.

📱 Mobile SDK Features

Certificate Pinning

Prevent MITM attacks

Device Fingerprinting

Track suspicious devices

Jailbreak Detection

Block compromised devices

Traffic Encryption

End-to-end protection

Installation

iOS (Swift)

// 1. Add to Podfile
pod 'G8KEPRMobile', '~> 1.0'

// 2. Initialize in AppDelegate
import G8KEPRMobile

@main
class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication,
                     didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

        G8KEPR.configure(
            apiKey: "your_api_key_here",
            environment: .production,
            options: G8KEPROptions(
                enableCertificatePinning: true,
                enableJailbreakDetection: true,
                enableDeviceFingerprinting: true
            )
        )

        return true
    }
}

// 3. Make API calls through SDK
G8KEPR.shared.request(
    url: "https://api.yourapp.com/users",
    method: .GET
) { result in
    switch result {
    case .success(let data):
        print("API call succeeded")
    case .failure(let error):
        print("Error: \(error.localizedDescription)")
    }
}

Android (Kotlin)

// 1. Add to build.gradle
dependencies {
    implementation 'com.g8kepr:mobile-sdk:1.0.0'
}

// 2. Initialize in Application class
import com.g8kepr.mobile.G8KEPR
import com.g8kepr.mobile.G8KEPROptions

class MyApplication : Application() {
    override fun onCreate() {
        super.onCreate()

        G8KEPR.configure(
            apiKey = "your_api_key_here",
            environment = G8KEPR.Environment.PRODUCTION,
            options = G8KEPROptions(
                enableCertificatePinning = true,
                enableRootDetection = true,
                enableDeviceFingerprinting = true
            )
        )
    }
}

// 3. Make API calls
G8KEPR.request(
    url = "https://api.yourapp.com/users",
    method = HttpMethod.GET
).execute { result ->
    when (result) {
        is Success -> println("API call succeeded")
        is Failure -> println("Error: ${result.error.message}")
    }
}

Key Features

Certificate Pinning

Prevents man-in-the-middle attacks by validating the server's SSL certificate matches your pinned certificate.

🔒 Certificate Validation Flow:
1. App makes HTTPS request to api.yourapp.com
2. Server presents SSL certificate
3. G8KEPR SDK validates certificate hash matches pinned value
4. ✓ Match: Request proceeds
   ✗ No match: Request blocked + alert sent to dashboard

Pinned Certificate:
  SHA-256: 8f:43:28:d9:2a:5e:b1:...
  Valid Until: 2026-12-31
  Auto-Rotation: 30 days before expiry

Device Fingerprinting

Creates unique identifier for each device to track suspicious behavior across accounts.

Device Fingerprint Components:
  - Device model: iPhone 15 Pro
  - OS version: iOS 17.2
  - Screen resolution: 1179x2556
  - Timezone: America/New_York
  - Language: en-US
  - Installed fonts: 47 unique
  - Battery level: 73%
  - Network type: WiFi

Generated Fingerprint: fp_4x9k2mp7b3t
Used to detect:
  • Account sharing across multiple devices
  • Device spoofing / emulator usage
  • Fraudulent account creation patterns

Jailbreak/Root Detection

Identifies compromised devices that bypass OS security restrictions, allowing you to block or flag them.

iOS Jailbreak Indicators:

  • • Cydia.app installed
  • • /Applications/Cydia.app exists
  • • Can write to /private directory
  • • dyld environment variables modified

Android Root Indicators:

  • • SuperSU / Magisk binaries present
  • • /system/xbin/su exists
  • • Can execute 'su' command
  • • SafetyNet attestation fails

Performance Impact

MetricWithout G8KEPRWith G8KEPROverhead
App Launch Time847ms892ms+45ms
API Call Latency124ms131ms+7ms
Binary Size Increase-+2.1 MBiOS/Android
Memory Footprint-+8 MBPeak usage

Pricing

Per-App Pricing

iOS App:$49/mo
Android App:$49/mo
Both (Bundle):$79/mo
You save:$19/mo

What's Included

  • ✓ Certificate pinning
  • ✓ Device fingerprinting
  • ✓ Jailbreak/root detection
  • ✓ Network encryption
  • ✓ Dashboard analytics
  • ✓ Unlimited API calls

ROI Example

Cost:$79/mo
MITM attacks prevented:~12/mo
Avg breach cost:$1,200
Monthly savings:$14,400

Q1 2026 Release

Mobile SDKs launch February 2026. Beta program with 10 mobile apps starts December 2025.

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Mobile SDK: Protect iOS & Android APIs | G8KEPR