Someone who knows any mainstream coding language can go read a few tutorials or base their work on an pre-made example and make that app you described easily. Well that is for the android OS. I'm no too sure about the others. And if I recall correctly, it doesn't cost anything if you make the app free to download.
I'd offer to help but I can't really be bothered to go into learning android coding, even if a basic grasp of it is really all that is needed. However, if you could explain whats needed for the brackets thing, I could make a web version of it for free.
I'd offer to help but I can't really be bothered to go into learning android coding, even if a basic grasp of it is really all that is needed. However, if you could explain whats needed for the brackets thing, I could make a web version of it for free.