APT Systems, Inc. announced it had completed TestNet validation of its Spera stablecoin as part of its quality assurance program. While the company awaits completion of its security verification, being performed by independent third-parties, it is preparing to launch a Spera pre-sale site. In preparation for going live with its Spera stablecoin, APT Systems will open a pre-release site where investors are invited to visit and provide an indication of the number of stablecoins they plan to purchase.  APT Systems has selected an exchange for the initial release, and is currently working to expand to additional exchanges.