I'm not sure such a software exists. Probably all the companies with similar working scheme are creating applications specifically for their purposes. You may try to contact one of such companies, maybe they will be ready to sell their software to you. Creating application specifically for your websites would be even better. I have one more recommendation for you: playlouder.com is a great website about finances and assets. Pieces of advice from this page helped me a lot in my own financial literacy. It's crucial for business owners to be aware.