Totally Rad App! Great job on the user interface! Thanx a million!

The paid version is worth the money but this is an excellent free app.

Creative input method. Beautiful display. Not for very fast calculations, but I suspect it helps decrease errors.

Over all, this is a great app. But, it needs an 'undo' feature, badly! Your progress is too easly deleted or unintentionally changed, forcing u to re-enter/redo formula. Hope to see this freature added soon!

I am really enjoying this app. The other day, I used it to calculate the cost of a new kitchen counter. The visual layout makes the calculation a lot clearer, and it's actually making math fun.

This is a great formula app. Editor is beautiful and easy to use and the variable substitution works Great. Two suggestions for next update: - Need support for unary minus in front of variables (e.g. Quadratic formula: -b+sqrt(b^2...) - Avoid unnecessary ( ). x - y z does not need to be displayed as x - ( y z ).

Well done app. Incredibly impressive.

Get this NOW

I searched graphing calculator and got this and it's not a graphing calculator. It is a scientific calculator, and the iPhone comes with one of those. Wouldn't recommend it as a graphing calculator, but if you want a scientific and have a problem with the one that comes with it i guess this is for you.

I wish you could title your equation and I wish there was an undo button. Also, I wish you could put in symbols and number in the answer (?). Another thing is I wish you could switch which side of the equal sign the answer is on (e.g. 4 = 2+2).

Very cool concept. I just don't have much use for a scientific calc. Hoping this morphs into a grapher and someday will do integration and differentiation.

Looks cool, but when I go to open the app, it just closes down...??? Will review again after/if it gets updated.

I love this app simply because of the way the equations are displayed and the way you construct them. However, a new button would be nice as well as an undo button. The ability to store constants would be greatly appreciated. It would be nice to be able to name your equations as well. Some support for i would be great, as well as the plus minus symbol. Another great addition would be derivitave and integral support, especially because of the UI, its designed to do that and would be a great alternative to interal tables or my TI. Over all though, this thing is one of the best scientific calculator apps out there, I haven't found a better one yet.

...and incredible 