We were building our zero code app creation service and we also faced the situation where the users needed to add complex logic, calculations etc. and creating separate draggable modules and buttons for every requirement would not really solve the problem.

So we added draggable blocks and provided autogenerated variables for all elements just like the cell number in Excel. For all complex logic and calculations, the users can simply write a formula the way they write in Excel and complex apps can now be created without any coding language.

We also have huge respect for Excel.

If you are interested, you can try our software here: https://clappia.com