Touch Fin Financial (obsolete, read description)

"This calculator is a perfect mirror of my old 12C but now they want me to upgrade to some kind of combination of calculators? I'm afraid to do that. It's perfect and an upgrade can only be a bad thing? Please tell me it's going to be okay because I'm tired of getting the upgrade message every time I open it."

"best option for hp 12 lovers"

"great"

"very good"

"Superb HP-12c emulator -- has outlasted my calculator. Excellent privacy policy."

"This is great. But can we have an option to lock the screen in landscape mode? (Edit, got your reply, that works, thank you!)"

"Well done."

"I previously purchased this app and had to pay for it again to get rid of the ads on the free version which I have already done before. Had to keep my payment in place to want others with my review. Although it works fine for a financial calculator, I've paid for the same app twice. Choose the competition and only pay once."

"Originally purchased Andro12c and loved it for old phone. Now with new phone I am forced to repurchase app again! This is the last time for this as I feel ripped off."

"Since I don't want to take my HP 12C on business trips (it's an older one, before production moved to China), I needed an app for my smartphone. This one is the real deal; apart from the lacking keyboard feel, it is just like my actual 12C. Or actually it's better, since you can save state, and copy/paste. Portrait mode is useless for me; all of the keys are in the wrong place then ;-)"