Great job trying to do something to help the situation, but unfortunately simply wanting to help is not a substitute for market research: very basic research wo

Great job trying to do something to help the situation, but unfortunately simply wanting to help is not a substitute for market research: very basic research would have shown you that many ethical pay-for games for children exist on iOS and Android, however you don't hear about them and they're hard to find because nobody buys them. It looks like you researched the (few) successes, but not the (many, many) failures. The reason most consumers will know about the games that let children buy IAPs is because these games make a lot of money, which gives them large advertising budgets which lets them quickly climb the sales charts. You also see the big conglomerate ones because of advertising. As anybody involved in the Apple or Play store will tell you, most of the money goes to the top apps, and being a top app for any decent length of time requires heavy advertising: either paid or viral. You won't get viral advertising for an ethical children's game. I honestly don't believe it's even possible to succeed with a quality children's game and make livable money off app store purchases from an unknown developer. Your best bet is to fund it from outside of the app store using something like Kickstarter which will hopefully drum up some support in addition to cash flow. Another option may be to sell it somehow in brick and mortar children's stores at the same kind of prices physical children's games are sold, possibly by including your game on some cheap hardware as a complete package. Either way, good luck, and keep looking for novel business ideas to keep it going!