will I make more money building iPad or iPhone apps?

The question of whether you will make more money building iPad or iPhone apps is complex and depends on various factors, including your target audience, app category, and monetization strategy. However, here are some insights from the WWDC sessions that might help you decide:

1. Unified Development: Apple's SDKs and tools like Swift, SwiftUI, and Xcode allow you to build apps that work across multiple Apple devices, including iPhone and iPad. This means you can potentially target both platforms with a single codebase, optimizing your development efforts (Platforms State of the Union).

2. Gaming: If you are developing games, Apple provides a unified gaming platform that supports Mac, iPad, and iPhone. This allows you to reach a broader audience by making your game available on multiple devices (Design advanced games for Apple platforms).

3. Adaptive UI: SwiftUI enables you to create adaptive user interfaces that look and feel native on any Apple platform. This can help you provide a consistent user experience across iPhone and iPad, potentially increasing user satisfaction and retention (SwiftUI essentials).

4. Market Considerations: The iPhone generally has a larger user base compared to the iPad, which might translate to a larger potential market for iPhone apps. However, iPad users might be more willing to pay for apps, especially in categories like productivity, education, and creative tools.

5. Monetization Strategies: Consider different monetization strategies such as in-app purchases, subscriptions, and ads. The effectiveness of these strategies can vary between iPhone and iPad users.

In summary, leveraging Apple's tools and frameworks allows you to efficiently target both iPhone and iPad users. The decision on which platform to prioritize may depend on your specific app and its target audience.