People constantly communicate with their phones, be it via text message, email, social media, or any other conduit, and the Turtlcase is a way to address the physical impact of that digital output. The case, built for the iPhone 6 and 6S, prevents "textitis," which is the strain put on joints, tendons and muscles in one's hands from constant texting.
The Turtlcase prevents textitis through a surprisingly discrete design trait. The biggest problem with texting, in terms of health, is not the movement of one's hand and fingers -- rather, it's the shape. Keeping one's hand in a claw-like grip while texting with one hand for extended periods leads to soreness and eventual chronic damage. The Turtlcase overcomes this by changing the shape of the iPhone itself; the case has a bulge, like a turtle's shell, at the back, shaping users' hands into a more comfortable, sustainable position.