You don't have to buy one, you can install an app on your phone that will accomplish the same thing.

With actual cash, you just transfer it. yes, but you can still bid with lender approval - without appraisal contingency - you send in deal (app), it gets approved by lender its functionally the same as cash (except in true lightning speed situations where there is a quick auction with little time to prep but thats generally pretty rare I'd think)Right, but that's not cash or functionally the same as cash because the lender can change the terms at the last minute, as often happens with less experienced hard money lenders.

Super. 601, 604 (App.

This is the same process a national retail store chains use to determine store locations and what to stock.

In a simple way: you wouldn't go to the store and buy $100 in cash for $150.

You can take pictures of receipts and log in to the app or work on the desktop.

Then they would take the dryer back to the store and sell them a gas dryer I can’t see how this happens other than you trying to rent out a property with no dryer installed?

You don't have to go to the store. 

For example, my appliance store gives me a 10% discount, so I charge a 5% markup to my owners to make a little money and the owner still saves 5% from retail. 

Selling to the wrong buyer can become more expensive than carrying the home for slightly longer.I will buy my bath/kitchen fixtures at a plumbing supply house and not a big box store.