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.
Misquoted a payment for my customer by $300+. I even double and triple checked it because I was working on the fly and the client needed a payment quote. So disappointed. Deleted immediately. Don’t trust it.
I have been using this app for years and its beyond helpful. It’s just like an HP calculator. Excellent
Was my go to for a calculator but it does not display correctly on iOS 13. Is this app still supported? I paid for it so I have to assume it will be fixed. Update on previous review: Back to 5 stars after the iOS 13 fix. Thank you. 🤓
I have used this program for ages and have come to depend on it. Imagine my surprise when I opened it, after upgrading my iphone to IOS 13.1, and found it was unusable. Sure hope they update the app! Contacted Developer about program not working. They advised that an update was created. Several days later, it appeared in the app store - everything is working again! Thank you!
As a longtime HP user, I own many of the physical calculators and even purchased HP’s official 15C app. That app is OK but had some usability issues that HP never addressed, and appears to be abandoned now. When I tried the free version of Touch RPN, I knew I had a winner. The detailed rendering, keyboard feedback and vertical (portrait) layout are just what one would expect in a top of the line product. I purchased the Scientific Premium version and could not be happier. It was an easy decision to delete the HP app. The negative reviews you see here are either critical of the all-in-one version vs separate app approach, or from people who don’t know what RPN is. I have no concerns about the all-in-one version, but I do have a gripe. To say that an app supports Family Sharing when its only purchase option is via IAP is a flat-out scam, and this developer tarnishes its integrity by making such a claim. I wish Apple would put an end to this deceitful practice.
After update to IOS 13 part of the calculator is not visible in portrait view. Landscape is fine.
I LOVE this app because it’s so “totally HP” in appearance, but display after 1,000 places commas every 2 decimal places, like 30,00,00,000. Maybe I flicked a wrong switch or something.
I have really enjoyed this application it matches the 12C and all its calculations. I have not been able to find the paid app to remove the ads. Where can I find it?
Paid years ago for app. I’m know getting ads. Scammy. Because of this, I ended up looking for another 12c type app and found one better. I advise you do the same.
Thanks for the app. I am unable to close out of the app without rebooting my phone on iPhone X. There is an ad in the upper right hand corner that prevents closing the app. There is no option to upgrade.