Review on 📸 Zink Polaroid Mint Pocket Printer with Zero Ink Technology & Bluetooth for Android & iOS Devices - Black by Dennis Reed

I wonder how they sell this device. They have two apps on Google Play. First I tried the zinc app (it has a rating of 1.9 and the last rating is 1 star). To print it prompts you to update the firmware when you click it, just a splash screen, nothing happens. Then I installed another app, Polaroid Zip. It does the same thing, but this time you'll see an update download bar. At 100% nothing happens. So I send it back without printing a single photo.