If you are looking to upgrade your existing version installed on your PC or device, please download the installer or apk file from following links. Run the installer and update the existing installation. These installers are dual purpose, can be used to update existing installation, or to do a fresh install.
Please note that licenses issued for older versions (less than version 14.0.0) are not valid for this version. Please contact our support to learn whether you are eligible for an upgrade or not. You might require a new license key for version 15.5.1