Tools to create awesome "Previews and Screenshots" images.

What is everyone using to create awesome "Previews and Screenshots" images for your app?

The app itself?

I tried Gemini AI and the art was great, but it's so stupid it just ignores the dimensions I tell it to use.

That's the point of screenshots. In addition to being the exact dimensions required, they are also an accurate representation of the displays of your app. I don't see how AI would qualify for this.

It is very explicit in guidelines, if your Previews don't show real screenshots, the app risks being rejected.

2.3 ASR & NR Accurate Metadata.                  Customers should know what they’re getting when they download or buy your app, so make sure all your app metadata, including privacy information, your app description, screenshots, and previews accurately reflect the app’s core experience and remember to keep them up-to-date with new versions.

You can add drawing in screenshot overlay:

2.3.3 Screenshots should show the app in use, and not merely the title art, login page, or splash screen. They may also include text and image overlays (e.g. to demonstrate input mechanisms, such as an animated touch point or Apple Pencil) and show extended functionality on device, such as Touch Bar.

You can use AI to generate images to include in the app and they will show on screenshots. Or some image to partially overlay the screenshot. But not substitute to screenshots.

it just ignores the dimensions I tell it to use

That's not the issue as it is so easy to resize to the exact dimensions. The issue is the content.

You can give AI the screenshot, and it adds whatever other content you want - it works great, and is an actual screenshot; unfortunately, AI is pretty stupid also sometimes.