In this flipping cell phones guide, you will learn how to start flipping iPhones, Androids, old cell phones and more. Tip: Save the iPhone Flipping Tool to your bookmarks bar. I am very familiar with iPhone products, so I felt comfortable buying and selling them only. Suffice to say: with any business, time is money. ThanksThank you for sharing this great content. These questions are great to ask but ask more if you can think of them.