Cost Calculator ​
Every SAP project has a sheet like this one. Set the sliders to your landscape, pick a currency, and read off what abap2UI5 will cost you.
The formula is short: every line is zero, and a sum of zeros is zero. Slide the users to 250,000, the systems to 50 and the support tier to Enterprise Plus - the sheet does not move, because nothing is counting. abap2UI5 is MIT licensed, commercial use included, and an app built with it is a standard UI5 app served by the ABAP stack you already run.
What is not on the sheet ​
Two things, and they are the same for any ABAP program: the SAP license you already have, and the time of whoever writes the app. Both were yours before abap2UI5 and stay yours with it.
The one line that is not zero ​
abap2UI5 is open-source work. The people who build and maintain it do so in their free time, and the zero above is what they give away. If this page just took a budget line off your project, consider giving a little of it back: sponsor the contributors, and the open-source projects abap2UI5 is built on.