It's not a phone app, but I made a web app[1] that can get pretty close[2]. From looking at the images I think the reason why other other apps don't look the same is that they try to emulate it use an ordered dither, while it looks like the Gameboy camera is either adding some randomness or noise as well. I have a Bayer (R) algorithm that adds randomness and it seems to get closer to the Gameboy camera output.
I was thinking about that recently, and I'm not so sure either. The profit margin for Google Services which YouTube is a part of is 30%, but that also contains the ads division, which is hugely profitable. Also, you would expect if YouTube's profit margin was 30% as well they would disclose it, so you have to imagine it must be significantly less.
If you are a professional, it means you have a business. Large companies can give away things for free, and this is called marketing, and no one has a problem with this. If small or one person businesses want to give away labor for free, also for marketing purposes, why is this unethical?
Something that I don't see mentioned is that this emoji opens the door to accidental racism because you are assuming the other person's race when you use it, since presumably one of the hands belongs to the person you are speaking to. This contrasts with something like the thumbs up emoji, where it is meant to represent your own hand, and so you can make it any color you want. It is also not clear if you use it, which hand is supposed to be yours- I am the hand on the left or the hand on the right?
