Heya is a free iPhone app developed by Alexandre Ksikes in the Social & Communication category, specifically the Social networking subcategory. This unique app allows users to place virtual eggs in augmented reality (AR) and leave secret messages inside. It's like an Easter egg hunt, but in a digital world.

The concept behind Heya is to provide a new way of communication through virtual objects in real-world environments. Users can go to different locations and place virtual eggs, each containing a secret message. Other users can then visit the same location, open the egg, and leave their own message inside. This creates a connection between all the users who have interacted with the same egg.

The possibilities for what you can put inside your egg are endless. You can add fortune cookie quotes, pictures or videos taken at the scene, instructions for finding a hidden physical object nearby, coupons or gift cards as rewards, or even special messages for someone important to you. You can also organize treasure hunts where one egg leads to the next.

With Heya, you can have fun exploring different locations, connecting with other users, and leaving your mark in the virtual world.