Eye Illusions and Mind Tricks is an app that lets you find exactly that, so you can have optical illusions set as your iOS wallpaper.
This is essentially a web search tool, that always finds images of a particular category, in this case Eye Illusions and Mind Tricks. The app has no content, and takes all of the wallpapers from the web, meaning to have to be connected to the internet to use it. You can view images by popularity, most recent, random and add a filter to refine your results. There is no manual search bar.
While Eye Illusions and Mind Tricks does find exactly that type of image, it's not an amazing app. The images you will find are by no means optimized for viewing in iOS, so are not always well suited for wallpaper. The app is free with ads, and will ask you to download other apps every time you open it.
If you're looking for Eye Illusions and Mind Tricks, you could use this app, or you could simply search the web. Eye Illusions and Mind Tricks is a great example of an unimaginative app that is both unnecessary and poorly executed
