HP 15C Calculator App Reviews

I downloaded and was charged for the iPad version of this app. I need a scientific calculator. The version for the iPad lacks trig and other scientific functions. I wouln NOT have wasted my time and money on this product, if it had been obvious that the iPad version did not include trig functions. This application is worse than useless. There are many free calculators, if all I wanted was to do arithmetic. I would rate it less than zero, if this were possible You should be ashamed for selling such a poor product

Key click sound problem is gone Very fast! Portrait mode is convenient.

If youre a fan of HP calculators, this app is well worth it.

Great to have an HP 15C again. Ive been really bummed since my original calculator crashed. The layout is perfect on the iPad and the "keys" are perfect for large hands. Note: you have to hold the iPad in landscape orientation to get the full 15C layout shown on the left above (with trig functions, etc.). If the iPad is held in the portrait orientation, you only get the basic arithmetic operations (shown above on the right). Its not immediately obvious at first how to switch the visual modes.

Only issue I have so far is the key click sound.

Great app. Exactly like my engineering calculator from college! Perfect!

This is a disappointment, to be honest. The buttons are a but small, and it seems to have bugs. For example, enter a small program and run it. After executing, the display starts flashing. What the hell? Much like the actual 15c Special Edition, this needs work to get it working properly.

THe best calculator HP ever made! Glad to have it back.

After installing app I was surprised that there was no trig or programming but the calculator switches to all features mode when rotated from portrait to landscape. The manual displays nicely too. I was puzzled by limited edition and discovered HP has reissued the 15C hardware recently and is available for ordering as of June 2012.

If it wasnt for the annoying clicking that you cannot turn off I would have given this app more stars. Come on HP, it cant be that hard to fix this!

Love the app, just as I love my (still working) real HP15c. But there should be a way to remove the "shadows" from the numerical display in the app. In the real world, the shadow is a real 3D effect, and can be controlled by moving the calc with respect to ones eyes or the light source. Obviously this is not possible with the app, and to me just results in lowering the legibility of the display. There should be an option to turn off the shadowing.

Works great for me! Thanks HP! Dont like the click? Turn your sound down. RTFM...

Had to RESET several times, and restart my iPhone twice.

Display flashes after program execution. Also sometimes hard to tell what key youve hit. Making the key light up or magnify like text input on the iPhone would make life easier. The now-unavailable sci 15c app was less buggy and easier to use. I am glad my real 15c and 15c LE are better than the app.

Two feature requests: 1 Tturn LCD numeral shading off (or make it selectable) and 2. Please update to iPhone 5 screen size so buttons can be a little bigger.

Still my favorite calculator of all time--since freshman year in 1985, anyway, and my 15c stills work perfectly. But this app is the next best thing, for when Im not in my office. One star off for the $15 price though. (To the people complaining about the clicking, go to the iPad/iPhone settings and there is a preference for the 15c where you can turn off the clicks, set rotation lock, etc.)

Pretty, too expensive, drop the display shading. Considering the trashing HP mismanagement has put on its legacy of excellence I suppose gratitude for this flashback is in order.

For those complaining about the key click. If you flick the "no ringer" switch on your iPhone it goes away.

Great app! Best emulation of the 15C I have found. A little overpriced, but to those of us who have grown up with the finest calculator ever made (in my opinion), it is worth it. An update is overdue that would allow turning off the key click within the app. I know the ringer switch does silence the app, but I find it a nuisance to have to switch it on and off every time I use the calculator. Also would be nice to take advantage of the additional real estate offered by the iPhone 5.

Disappointed I couldnt get all the functions to work. Could not get it to store matrix variables in user mode. Key strokes were correct and work on my real HP 15c. After many trys I finally gave up.