Our Backend/Magento Modules are 100% open source and under the OSL License. For single license, you can use on 1 live domain (1 installation), 1 testing/staging domain and multiple subdomain from the same backend. You also can add the license key for your localhost.
Our PWA theme/Mobile theme/Shopify theme/Other templates are 100% open source and under the OSL License. For single license, you can use on Unlimited domains, and can access to download new theme version on 1 year (or other as discussion). After license expired, you should renew the license to access download new theme files, get support for theme.