I downloaded. This looks like an interesting alternative to rcmd (https://lowtechguys.com/rcmd/).

Will future updates cost?

Thanks! I wasn't aware of rcmd, seems interesting!

> Will future updates cost?

Nope! Once you buy it, all future updates are included. I plan to keep maintaining it with bug fixes and small improvements based on user feedback, but my goal is to keep the app focused and lightweight rather than adding tons of features.