Scroll Sampler it's perfect for anyone working on iOS projects with SwiftUI.
The app lets you simulate and layer multiple effects on content as it appears and disappears from the screen (including content at the center). Once you're happy with the combination of effects, you can generate a custom extension with a modifier that gets copied to your clipboard. Just paste it into your iOS project, and voilà—your app elements will behave exactly as you designed in Scroll Sampler.
You can even save your effect combinations as presets for future projects. Remember, Scroll Sampler utilizes API for scroll transitions introduced in iOS 17, so it’s great for projects that can leverage these new capabilities.