Touch Fin RPN is an RPN financial and scientific calculator that implements most features of the industry-standard HP-12C, including programming functions. It also implements a scientific RPN flavor that implements most functions of the beloved 11C. And even more flavors (10C-like, 16C-like) can be purchased within the app.
One thing to put ads. There’s a whole new level they figured out. Don’t waste your time on this
I’ve been using this app for years. Ever since my HP 12c died. It works exactly the same! I had a little glitch in that I was getting the wrong payment for a loan that I was entering. I contacted the developer and he answered right away. He asked if I had the future value set to zero. Somehow it had gotten changed and it was not zero. I set it back to zero and everything works perfectly again. Thanks for the quick response! I love this app. (I must be happy with it, this is the only review I’ve written about an app so far.)
The free version is incredibly annoying with all the ads. I just upgraded to the paid version and I’m very happy with it.
App works just like a 12C, but the company sold their soul to Lending Tree for advertising. You used to have to watch a short ad which was fine. Now LendingTree has some ad that comes on and if you don’t tap out in the first couple of seconds, it won’t go away. Essentially makes the app USELESS.
I don’t mind ads for a free app, but some ads are impossible to clear after sitting through them. Very frustrating. A recent Lending Tree ad is a good example.
Poor support for paid version. Can’t stop Ads. Buy the other HP Finiancial and pay the $15.
I would be willing to pay to have the ads removed, but for the life of me I cannot figure out how to purchase the paid version. Update: prompt developer response, much appreciated. Perhaps that could be made more obvious in the app.
This was my goto RPN calculator app until a single Money Lending ad pops up full screen on my ipad which freezes the app. If I click anything, it launches a browser. There is no way to dismiss this! ...until I close and restart the app. Will be uninstalling this. Ad supported is fine, but this is unacceptable!
Does not display fully functioning HP12c regardless of orientation of iPhone
The calculator app itself works well enough. In fact, to the point that I went ahead and paid to get rid of the ads. It claims to have family sharing, so I paid using my iPad. When using on my iPhone, which is more typical, I still have the ads! And you can’t pay for it again on the phone because Apple figures the app was already paid for. I’ve tried multiple times deleting and redownloading and rebooting phone. Reset purchases from the Settings screen does nothing. I even tried purchasing again direct from iPhone but Apple doesn’t allow and says it was already purchased, so at least Apple is protected the user.