If you want to find a store near you to buy then click «Find Store». Once you’ve downloaded the app from the Apple App Store or Google Play Store , open it and you should see a screen like this:. To combat such limitations, there are some special types of Bitcoin ATMs which you can use to sell your Bitcoins sitting in a remote location and then can withdraw cash upon completion of the transaction from an ATM that is near you. Make sure you meet in a public space. Read our guide.