iData is a well-known freeform database application, now rewritten from scratch for macOS.
iData 2 was written with the consultation assistance of Dejal Systems, under contract to iData Partners. Dejal provided Cocoa advice and some code, though the majority of the application was written by Mike Wright, the original author. To find out more about Dejal's consulting / contract programming service, visit the Dejal Consulting page.
To buy iData, get more information, or to download a copy to try for free, visit the iData website.