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
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.
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
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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
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Cross-Platform Frameworks
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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
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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