---
title: "12Calc — App Overview"
url: https://marlvel.ai/intel-report/finance/com-ernestbrock-12calc
category: Finance
developer: Ernest Brock
platforms: ios
rating: 4.9 (900 ratings)
pricing: paid
report_level: overview
generated: 2026-04-18
last_verified: "2026-04-18T09:02:15.468Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app provides a high-speed, feature-rich digital emulation of the HP12C calculator for professional financial modeling.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Finance |
| Rating | 4.9 ★ (900) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 3.0 |
| Developer | Ernest Brock |

<!-- SECTION: Summary -->
## What is 12Calc?

12Calc is a high-performance financial calculator for iOS that replicates the functionality of the HP12C. It features optimized 64-bit processing for rapid calculations and includes a suite of professional financial worksheets and an integrated audit tape.

<!-- SECTION: Key Features -->
## Key Features

- **Financial Worksheets**: Includes 15 interactive modules for tasks such as TVM, loan amortization, cash flow analysis, and Black-Scholes calculations.
- **Audit Tape**: Maintains a record of calculations that users can review, print, or share via email and text.
- **Unit and Currency Converter**: Supports conversion between common units and currencies, with the ability to download live exchange rates.
- **Optimized Performance**: Engineered for 64-bit iOS environments to provide instantaneous results for complex depreciation and interest schedules.

<!-- SECTION: Target Audience -->
## Who is it for?

Financial professionals and students requiring a high-accuracy, mobile-optimized version of the HP12C calculator.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/12calc/id780780002?uo=2)
- [Full Intelligence Report](https://marlvel.ai/intel-report/finance/com-ernestbrock-12calc)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/finance/com-ernestbrock-12calc).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*