Can I first purchase the one domain version and later upgrade to the unlimited domain one?

WHO WE ARE

We are a software company founded in 2005, driven by a passion for creating high-quality, innovative web solutions, ready-made website systems, PHP scripts, and tools that make building complex business websites fast, efficient, and far more affordable than custom web development.
To help adapt our systems to our customers' business needs and project requirements, we offer a range of customization and custom development services at affordable prices, along with free technical support.