And this is successful in its sector? It wouldn’t be beneficial financially to ‘pay’ people for resources that could just be free to the business if marketed correctly. Therefore, more money can be invested back into the business towards the smaller number of staff that are fully dedicated, meaning that more of the income can go towards physical development of new projects and features than lesser dedicated staff. If anything, I would highly see this as a commendable business model that is hard to get if you can mix voluntary involvement and long term dedication.
Whilst I wouldn’t say there aren’t competitors, as there’s obviously some market of many other flight sims that do have some kind of a market otherwise they wouldn’t be operating, it’s not to say the market that Infinite Flight currently has is in no way an unstable market, nor isn’t leading the mobile market.