Very Useful App, Excellent Customer Service – TechniCalc Legacy Review

I tutor algebra. I needed an inexpensive app that would show the answer in either decimal or fraction form. After playing with the free version, I bit the bullet and paid a couple of bucks for the premium version. I have been really pleased. I made a couple of suggestions to the developer, who responded right away. He implemented one of my suggestions in the next revision and is looking into adding the other one. I tweeted him when I couldn't find the button to push for a particular operation and we tweeted me right back with the answer.
Review by miss.bev on TechniCalc Legacy.