Apple

Preview on Mac has a built in background remover. If it’s not in the toolbar, you can add it:

Next on my wishlist is a way to convert images within Preview. The option exists when you right click, but I’m lazy.

I wish the App Store was more open. To publish an app, you need to pay the $99 fee, buy a Mac, take screenshots/videos of your app, and then wait a few days for a review. Compared to the web, open an index.html, write your code, publish it wherever, and your site is live for everyone.

I know you can open websites on iOS, but it’s possible to create a much better user experience with mobile apps.