Case Study - Cross-Platform Consent Management SDK

Developed and maintained comprehensive mobile SDK ecosystem for consent management across Android, iOS, cross-platform frameworks, and TV platforms, ensuring consistent functionality, performance, and compliance.

Client
Privacy Technology Provider
Year
Service
SDK Development
Privacy Technology Provider - Cross-Platform Consent Management SDK
Privacy Technology Provider

Key Results

  • SDK deployment across 9 major platforms
  • 215% increase in serviceable market
  • 8,500+ applications implementing the SDKs
  • <3% impact on app startup time
  • Frontend
  • Backend
  • UX/UI

Client Feedback

Developing and maintaining consent management SDKs across the entire spectrum of mobile and TV platforms was a monumental technical challenge. The approach to this challenge was nothing short of exceptional, creating a coherent ecosystem of SDKs that maintained consistent functionality while embracing the unique characteristics of each platform.

Privacy Technology Provider

Challenge

Our client, a leading provider of consent management solutions, needed to expand their platform coverage beyond web browsers to support the growing mobile and TV application ecosystems. They faced several critical challenges:

  • Creating a consistent consent experience across highly diverse platforms
  • Supporting the unique UI constraints of smart TV interfaces
  • Ensuring performance in resource-constrained environments
  • Navigating the complex regulatory landscape of data privacy
  • Adapting to platform-specific development patterns
  • Building SDKs that developers would find easy to integrate
  • Maintaining feature parity with their established web solution
  • Ensuring ongoing support across multiple codebases

This technical challenge was substantial: developing, deploying, and maintaining native SDKs for multiple platforms while ensuring consistent functionality, performance, and compliance.

Our Approach

We tackled this complex challenge with a systematic, architectural approach:

Architectural Foundation

  • Designed a platform-agnostic consent data model aligned with global privacy standards
  • Developed a consistent API design language for all SDK implementations
  • Established cross-platform testing methodologies and quality standards
  • Created modular components that could be tailored to platform constraints
  • Implemented a unified versioning and release strategy

Technical Implementation

  1. Mobile Native SDKs

    • Android SDK (Kotlin/Java)

      • Built a native SDK optimized for the Android ecosystem
      • Implemented Material Design components with customization options
      • Created adaptive layouts for different screen sizes
      • Developed efficient consent storage with encrypted SharedPreferences
      • Ensured compatibility from API level 21 (Lollipop) through current Android versions
    • iOS SDK (Objective-C/Swift)

      • Developed a dual-language SDK with Swift internals and Objective-C compatibility
      • Created UIKit-based consent interfaces with SwiftUI options
      • Implemented support for iOS privacy features (ATT, IDFA access)
      • Built lightweight persistence with proper app lifecycle management
      • Ensured compatibility from iOS 12 through current versions
  2. Cross-Platform Frameworks

    • Flutter SDK

      • Developed a Flutter plugin with native platform channels
      • Created Dart API with intuitive Flutter-friendly patterns
      • Implemented custom UI components matching Flutter design language
      • Ensured proper state management and widget lifecycle integration
    • React Native SDK

      • Created a React Native module with native bridge implementation
      • Developed TypeScript definitions for improved developer experience
      • Built optional React components for quick implementation
      • Ensured proper integration with React Native navigation solutions
  3. TV Platforms

    • Developed specialized SDKs for tvOS, Android TV, Tizen, and webOS
    • Created remote-control friendly navigation patterns
    • Implemented TV-optimized UI with proper focus management
    • Built performance-optimized rendering for limited resources
    • Designed simplified consent experiences appropriate for TV context

Results

The comprehensive mobile and TV SDK suite delivered significant results:

  • Platform Coverage: Successfully deployed across Android, iOS, React Native, Flutter, Unity, tvOS, Android TV, Tizen, and webOS
  • Market Expansion: Enabled the client to increase their serviceable market by 215%
  • Developer Adoption: Over 8,500 applications implemented the SDKs within 18 months
  • Performance: Maintained less than 3% impact on app startup time across all platforms
  • Size Efficiency: Kept SDK sizes under 200KB for mobile and 350KB for TV platforms
  • Compliance: Ensured proper implementation of GDPR, CCPA, LGPD, and other privacy regulations
  • Consistency: Maintained 98% feature parity with web solution across all platforms
  • Revenue Growth: Enabled 130% growth in the client's mobile/TV segment revenue

The solution demonstrates our expertise in cross-platform development, creating a coherent ecosystem of SDKs that maintained consistent functionality while embracing the unique characteristics of each platform.

Technologies Used

  • Mobile Native: Swift, Objective-C, Kotlin, Java, Android Jetpack
  • Cross-Platform: Flutter, React Native, JavaScript, TypeScript, Dart
  • Game Engines: Unity, C#
  • TV Platforms: tvOS, Android TV, Tizen SDK, webOS SDK
  • Testing: XCTest, JUnit, Espresso, Flutter Test, React Testing Library
  • CI/CD: Fastlane, GitHub Actions, Azure DevOps

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