Tetragram

事实上，发布您的图片在现实世界中增强现实技术

Like to try the cutting edge AR (Augmented Reality) technology? No need to buy expensive device, just install Tetragram you can play Augmented Reality with no cost.

What is Tetragram?

* It's like a magical camera, through the camera you will see a digital picture posted on a real object such as a wall or table.

* Not just see, everyone can post their own pictures to real walls, as long as there is a QR code printed on the wall.

* The picture exists permanently, you can tell friends to see it anytime on the place with Tetragram app.

How it works?

* Find a QR code on a wall and scan it with Tetragram app.

* Select a picture and post it with the place information.

* Send it to your friend, tell them to see how you hack the real world!