Adenda

Adenda is an Android SDK that enables developers to display interactive, full-page content directly on device lock screens. Instead of traditional small notification icons, Adenda allows apps to show rich media including HTML, images, and video content that users see every time they check their phone. The platform integrates with Urban Airship for push notification delivery, making it easy for developers to implement lock screen functionality.

The SDK works by adding a lock screen component to Android apps, creating a new engagement channel that doesn't require users to open the app. Developers can customize content layouts or use built-in designs, and users interact by swiping left to engage with content or right to unlock normally. What makes Adenda stand out is its focus on the lock screen as prime mobile real estate—users typically see this screen 50-100 times daily, providing significantly higher visibility than traditional notifications.

Android developers benefit most from Adenda, particularly those looking to increase user engagement without requiring app opens. Mobile app publishers can use it for content delivery and monetization through lock screen advertising, while digital advertisers gain access to highly visible ad space. Real-world applications include sports apps delivering live match updates, games offering reward systems, and content apps showing news or media directly on the lock screen.