This is an update after about 2 years of using Tydlig daily: no bugs or glitches, and 5 stars review still stands.
Tydlig is the most “unique” (as in “unique” = “different and good”) of all the 20 or so calculators I’ve tried (and I have no association with the developer). I keep trying other calcs, and this has become my everyday, preferred calculator.
In use, Tydlig is elegant and has a clean, obvious UI that is easy to use as a “normal” calculator. The cool feature that I like is the ability to touch and drag your numbers around, even pulling a number out of a calculation, and placing it in another calculation, and then pulling THAT result into the original calculation, to do a “what if” calculation. This may sound complicated, but it is very much like writing on a piece of paper, and drawing arrows into some other calculation, minus the erasing and smeared mess.
AND, Tydlig shows the slender connecting lines from one calculation to another, so I don’t lose the sense of what I was doing when I moved the numbers around. The edges of the main screen are a little busy (lots of possible settings, options, and places to send the info --currently PDF, print, screenshot--, multiple redos, trig functions, etc, but the main calculator area is open and clean. This developer thought “outside the box”, when I didn’t even notice that I was working in a box. Very Nice Job.
alwaysmprest about Tydlig