1. Home
  2. 💰 Finance
  3. 12Calc
12Calc

12Calc

by Ernest Brock

916 ratings
197 reviews
#180 in paid Finance
💼 Business
💰 Finance
$8.99

Details

  • Released
  • Updated
  • December 19, 2013
  • September 1, 2025

Features

Developer

Ernest Brock
✨Promote your app ✨
12Calc screenshot #1 for iPhone
12Calc screenshot #2 for iPhone
12Calc screenshot #3 for iPhone
12Calc screenshot #4 for iPhone
12Calc screenshot #5 for iPhone
iphone
ipad
📉no. 180
Charts↘︎
⭐197
Reviews↘︎
📝4+ tags
Tags↘︎
🔄6+ apps
Alternatives↘︎
❓5 answered
FAQ↘︎
📦w/o updates
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app provides a full-featured financial calculator experience, replicating the functionality of a popular physical model. It offers an audit tape for tracking calculations, a unit converter with currency exchange rates, and various worksheets with interactive graphs for financial analysis. Optimized for modern devices with high-resolution graphics and support for multiple orientations.

✓HP12C emulation
✓Audit tape for calculation history
✓Unit and currency converter
✓Interactive financial worksheets
✓Portrait and landscape views
✓Contextual help and tutorials
✓HD graphics with color themes
Show original description

What's New in 12Calc

3.0

September 1, 2025

•Fixed currency download •Fixed register save / restore

Charts

Top Paid

📉 180-2

Finance

This app dropped -2 positions in Finance chart.

Last updated on September 26, 2026.

User reviews

Most RecentHighest RatedLowest Rated

22Calc on your phone

Perfect duplicate of the 12C with so much more versatility. And processing at phone speed, much better than the independent device. No worries about upgraded or batteries. Plus the convenience of always having it with you. Just such a nice intelligently designed assistant
RayliebearRayliebear

GP

Great app
ShendelaiShendelai

A Former Finance Professor Says Go For It

I’ve been using this calculator since it first came out. It’s the best replica I’ve found of the HP-12, the calculator used by finance professionals
willapajoewillapajoe

Best

Best of the best sir.
MasterJobbesMasterJobbes

Melhor Calculadora

Excelente, melhor ate mesmo que a HP12C fisica.
PgvargasPgvargas
See 192 more reviews

Developer apps

allRPNCalc Calculator
allRPNCalc Calculator

by Ernest Brock

💰 Finance

(59)

$5.99
BA Finance Pro
BA Finance Pro

by Ernest Brock

💰 Finance

(232)

$5.99
10BII Calc HD
10BII Calc HD

by Ernest Brock

💰 Finance

(3.7K)

$8.99
BA Finance Plus
BA Finance Plus

by Ernest Brock

💰 Finance

(468)

$5.99
GraphNCalc83
GraphNCalc83

Graphing calculator

📚 Education

(4K)

$12.99
See developer apps

FAQ

What does 12Calc do?

12Calc is a comprehensive financial calculator app that emulates the functionality of the popular HP12C calculator. It allows users to perform complex financial calculations, track their work with an audit tape, convert units and currencies, and utilize various interactive financial worksheets.

What are the key features of 12Calc?

Key features include a full HP12C emulation, an audit tape to review and share calculations, a unit and currency converter with downloadable rates, and a suite of interactive worksheets for financial analysis such as loan amortization, depreciation, and cash flow. It also offers optimized HD graphics and support for multiple device orientations.

How much does 12Calc cost?

Based on the provided information, 12Calc is a paid application. There are no mentions of in-app purchases or advertisements, suggesting a one-time purchase for the full version of the app.

What devices is 12Calc compatible with?

12Calc is designed for iPhone and iPad devices. It runs in 64-bit mode on the latest iOS releases and is optimized for both standard and retina displays, offering high-resolution graphics and support for various viewing modes like slide over and split view on iPads.

What are common use cases for 12Calc?

Common use cases include performing loan amortization, calculating depreciation schedules, analyzing investments using Black-Scholes models, managing cash flow, and converting currencies for international transactions. It's also useful for students learning financial concepts and professionals needing quick, accurate calculations on the go.