12Calc

🇺🇸 United States
Ernest Brock  | 
26
ASO score
Text
3/100
Reviews
50/100
Graphic
60/100
Other
0/100
rating
App Rating
4.9
rating
Votes
1.14K
rating
App Age
12y
rating
Last Update
Sep 01, 2025

Compare with Category Top Apps

Metrics
Current App
Category Top Average
Difference
Rating
4.91
4.57
+7%
Number of Ratings (Voted)
1.1K
858K
-100%
App Age
11y 12m
8y 3m
+45%
Price
$6
$0
In-app Purchases Price
$0
$57
Update Frequency
69d
47d
+46%
Title Length
6
25
-76%
Subtitle Length
0
28
Description Length
1 784
2 667
-33%
Number of Screenshots
1065
1203
-12 %
Size
6MB
196MB
-97 %

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Top Dec 06, 2025 Dec 13, 2025
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Ranking Keywords in United States

Keywords App Rank
Illustration
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Text ASO

Title (
Characters: 6 of 30
)
12Calc
Subtitle (
Characters: 0 of 30
)
Description (
Characters: 1784 of 4000
)
12Calc is a full version of the well known HP12C for the iPhone and iPad. It also includes an audit tape, unit converter, worksheets, rotated views, user guide and HD graphics optimized for iPad and iPhone retina displays. •Runs in 64 bit mode on the latest iOS release and new iPads and iPhones. •Calculations are highly accurate and blazing fast. No more "running" flashing displays for amortizations, depreciation schedules or interest calculations. Work as fast as you can type. •Audit Tape: The audit tape keeps a record of your calculations. You can review, mail, text, share or print the tape. •Unit Converter: Convert between a wide variety of common units and currencies. Currency rates can be downloaded from the internet. •Work Sheets with interactive graphs: Auto Purchase Black-Scholes Bond Break-even Cash Flow analysis Currency Date Depreciation Interest Conversion Lease Loan Amortization (includes option for Canadian mortgages) Margin&Markup Refinance Statistics Tip TVM •Views for all orientations: Portrait and landscape renderings of the full keyboard are provided for iPhone and iPad. The iPad version includes slide over and multiple split view displays as well as side-by-side display of the help page, audit tape, tvm mortgage table or program variables. •Built-in contextual help: Touch the ? key for a description of any keyboard function with examples of use. If you are just learning or can't remember how to use a function- just touch the ? key. Includes tutorials on how to use reverse Polish notation (RPN) and how to solve time value of money problems. •HD Graphics: Graphics optimized for both retina and standard resolution screens. Choose from multiple color schemes including gold, rose gold, brass, copper, silver and several color tints.}
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Visual ASO

Screenshots

Rating & Reviews

Reviews Overview
🧐 Coming Soon…
Rating
4.9
1 144 voters

Some Latest Reviews

Shilockio Goms
29 Oct, 2025
5
The calculator is very efficient and useful for our daily business uses
CitizenDave
28 Oct, 2025
5
This is my update on the best 12C option in the App Store. Why? You can use the HELP section to learn how to use an HP 12C! Tje programmers that created the original HP12C know this programmer too. You get pre-designed worksheets in the App to make the 12C much easier and useful. AND you can send results straight to your printer! Use it for your customer, like the amortization tables just to start! Buy this. You will save a lot of time! Thanks!
whmu
12 Oct, 2025
5
Hello Ernest Brock, Thank you so much for new version 2.9 Now app is running iOS updated. It's the best 12Calc type calculator. The audit tape makes a huge difference in everyday use. Congratulations!
JMS-3.14159
12 Oct, 2025
5
This is the best RPN Financial Calculator available. I’ve been using it since it was available on the Palm pilot. As a licensed CFP, a financial service professional, this app on my phone was critical to my success.
native2nm
08 Oct, 2025
5
This app works just like my two HP12C calculators. I’ve retired both now; the app replaces them flawlessly.
hasta la bye bye
08 Oct, 2025
5
This 12Calc application is so convenient to use and is fully complete. It is my go-to calculator for everything! Many in-depth instructions are included. I use it very often and exclusively, and I find it incredibly convenient.
Hyc9301
29 Sep, 2025
5
I still have the original HP 12 C. It is somewhere in my desk since this application came out for the phone and iPad. I have not used the original. this application has been reliable, accurate, and easy to use. It is my go to calculator.
dlprz
26 Sep, 2025
5
It’s been working great for me for many years!! Worth the time and investment.
Not fooled today
24 Sep, 2025
5
Better than the original HP calculator, by far. It is much faster. I like the ability to save the tape. If you are not familiar with RPN, but you use a calculator app on your phone, you owe it to yourself to take the 5 minutes it takes to learn how to use it. Much easier on your brain and much less likely to make mistakes, once you get used to it. This emulation is easy to read, particularly if you prefer a different color scheme. I would give it 10 stars if it had an option to turn it into a scientific calculator.

Other

Additional Information
Rating:
4.93
Voted: 1.14K
App Store Link:
Price: 5.99 $
Website:
Email: -
Privacy Policy:
Categories: Business, Finance
Size: 5MB
App Age: 12 years
Release Date: Dec 19, 2013
Last Update: Sep 01, 2025
Version: 3.0
Version history
3.0
Sep 01, 2025
•Fixed currency download •Fixed register save / restore
2.9
Aug 14, 2025
• Fixed currency worksheet dark mode • Updated for iOS changes
Version history