Ive tried a handful of these "wealth accumulation simulators" and this is my favorite one. Clean, concise and little need to babysit it, it keeps counting cash even while the app isnt in focus, except for a major bug. It seems that if you take the app out of focus while the Profit Wheel (which multiplies your earnings) is active, then bring the app back in to focus after the multiplier effect ends, it somehow forgets to calculate ALL of the earnings you should have made since taking the app out of focus, multiplied or otherwise. Its as though time was frozen since you left, which is the opposite of how its supposed to be. This is especially a shame because the Profit Wheel is ad-supported, which obviously supports the developers, but this critical bug makes using the Profit Wheel a hindrance rather than a help, which means Ill be using it far less than I would otherwise.