Hi HN, OP here. A bit about Transdata:

It started as a scratch-your-own-itch idea from one of our founders (a financial analyst) to solve problems that are impractical/impossible in Excel and such. The overall goal is flexibility and ease of use. The entire tool was written in C++ by a single programmer (me).

Some key differences:

-The flowchart-style GUI (using Qt)

-Ragged data is allowed (non-rectangular)

-No data limit beyond what your computer can handle

-Reusable models