If you have a successful business, and as I understood, it is a mobile phone application. Applications are always evolving and need a huge infusion of money and continuous development.
However, there’s a principle that’s called 20/80, which is to devote 20 percent of your effort to something else.
So, if you spend the money in customer service, programming and development, or whatever you need as an application company, either if it’s not in your field, you should consider starting a business in a completely different area like selling products, etc.
As for real estate, you should have excess money because the yield takes 10 years or more for the capital to return.