The first app for spending cryptocurrency in stores. Instantly. Start with a Flexa balance in the coin of your choice. We provide support for Bitcoin, Ether, Bitcoin Cash, and Litecoin, with many more currencies coming soon. Take Flexa with you to buy food, electronics, clothes and more. We're integrated with payment terminals in over 35,000 locations worldwide—and counting. When you're ready to pay, just tap to reveal a flexcode. Don't worry about typing in a wallet address or amount; we instantly convert your payment at the market rate.
The main goal of Callisto is to research and develop a reference implementation of a self-sustaining, self-governed, self-funded blockchain ecosystem and development environment. Callisto aims to establish a secure and contribution-friendly environment for further protocol development and improvements. It will rely on a built-in system of smart-contracts to achieve this goal.