HP 12c Financial Calculator 4+

Update 4/30: Thank you for taking time to fix the iPad layout after the most recent update. I haven’t fully gone through the app (the only reason for 4 stars instead of 5), but this looks GREAT! Returned the usable layout, and still delivering improved graphics, etc. Love it!!! Thank you for being so responsive! …………………….. …………. From earlier in April 2025: I have loved using this app for 10 to 15 years on both my iPad and iPhone. I use the app a few dozen times per day… mostly on my iPad at my desk. Today’s update messed up the interface on the iPad… buttons look oddly spaced, etc. I hope that gets fixed soon!!!! Yesterday i would have given 4 stars. Today i give 2 stars. I acknowledge it looks like a lot of work was done and it looks crisper, but it no longer looks/feels like a 12c on an iPad.

Sorry for the trouble with the previous version. Yesterday, we released version 3.1.1, which addresses the key responsiveness and few other improvements. Could you please install it and let us know if everything is working correctly now?

I want to thank the developer for its acknowledging my problems with this application. I received an email directly from the developer informing me of a just-released 3.1.1 version which I immediately downloaded. It appears to solve all of the problems I note below.

Update lost all my stored information. Commas are where periods should be and vis versa. Hate the full screen layout on an iPad! The update needs an update and in a hurry!

I have installed Version 3.1, and neither the layout, which is almost unusable, nor the commas being where periods should be and vice versa have changed! How can this continue?

NOW, in addition to the problems previously noted above, the App forgets all stored numbers within hours of entry! After almost 50 years of using the original HP 12 C hand calculator through various versions of this calculator for iPad I have never had anything like this. The App is effectively useless. In fact, I have never had an app of any kind purchased in the App Store that had a single significant issue, let alone so many issues that the App was useless!

Thanks for your review! 🙌 We’re thrilled that you’re enjoying the app. Would you consider to give the app more than 1 star if you really think it has fixed previous problems?

Very nice to have fixed many of the 3.0 problems like memory loss but to also bring back the classic portrait keyboard and then to give the user options to place the smaller keyboard high, middle and low on the screen was a very surprising and VERY thoughtful touch with the design.

I actually prefer the old program's "photographic" landscape look for the keys and slightly thicker digit display look better, especially on the iPad, but that is a a small complaint. The V3+ updates are just outstanding!

Having the full calculator keys in portrait mode on the iPhone is just brilliant. I'm not sure I realized that this rotation from landscape had enough keys in portrait mode to do that but it does.

Thanks for your review! 🙌 We’re thrilled that you’re enjoying the app.