12Calc is made and published by Ernest Brock. AppBrain is an independent app data site and isn't affiliated with Ernest Brock. The app name, icon, screenshots and description belong to Ernest Brock and are shown as published on the App Store.
AppBrain's verdict
EstablishedLoved by users- Rating on App Store
- 4.89
- 926 ratings
- Last updated
- September 1, 2025
- Size
- 5.60 MB
Users love it: 4.9 stars from 926 ratings. Its best ranking is #29 in Top Paid, Finance in Brazil.
User feedback
Ratings and reviews on the App StoreComments on 12Calc for iOS
We don't have enough comments to show example comments. Please check back later.
Store listing
By Ernest Brock, from the App StoreDescription by Ernest Brock Written by the developer, not by AppBrain. Click to read.
•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.
Safety and technology
Found in the app by AppBrain- Price
- $8.99
- App size
- 5.60 MB
- Content rating
- Everyone
Technologies used by 12Calc
Releases
Updates seen on the App Store- Version
- 3.0
- Launched
- December 2013
No changelog data
Alternatives
Similar apps and more from Ernest BrockAlternatives to 12Calc
More from Ernest Brock
Rankings
App Store top charts- Highest rank
- #29
- Chart
- Top Paid
- Finance
- Country
- Brazil
App Store Rankings for 12Calc
Top rankings
| Rank | Country | Category | List |
|---|---|---|---|
| 29 | Brazil | Finance | Top Paid |
Ranking history in Brazil
About the app and developer
About 12Calc
12Calc is a finance app developed by Ernest Brock.
What is the rating of 12Calc?
12Calc is rated 4.89 out of 5 stars, based on 930 ratings.
Is 12Calc free?
12Calc costs $8.99. The app size is 5.60 MB. The latest version available is 3.0. The last update was on September 1, 2025.
What are the requirements for 12Calc?
The app has a content rating of Everyone. The app has been available on the App Store since December 2013.
Developer information for Ernest Brock
Address:
Share 12Calc
Subscribe now to get full and unlimited access to AppBrain Intelligence. You'll have access to:
- App Intelligence dashboard (performance timeline, competitor comparison, country rankings, insight cards)
- Detailed ranking data per app
- Full timeline per developer
- Device market shares data per country
- Unlimited keyword tracking
AppBrain is an app data site, we track rankings, ratings, installs for all apps and games on Google Play and the App Store. AppBrain doesn't host app files or APKs, all install links go directly to the official store. All trademarks are owned by their respective owners.
More apps
App statistics
About AppBrain