# 12C - Modern — Financial Calculator

> A modern reimplementation of the HP 12c financial calculator with enhanced features. (iPhone/iPad app by Anishu, Inc..)

- Source: https://appshunter.io/ios/app/12c-modern/id6444529133 (this page in markdown: same URL + `.md`)
- Developer: [Anishu, Inc.](https://appshunter.io/developer/306257913)
- Category: Finance, Productivity
- Price: Free with in-app purchases
- Rating: 3.10/5 from 10 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 15 MB
- Languages: American English
- Released: 2022-11-21
- Data updated: 2026-08-27
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/12c-modern/id6444529133/reviews.md

## What is 12C?

The 12c Modern is a complete reimplementation of the full functionality of the classic HP 12c financial calculator.  In addition to providing 12c's look & feel and functionality, we have modernized the app with features such as recipes, interactive prompts, and register views. This free version provides basic Calculator functions, Math functions, Percentage, Calendar and Memory functions. A one-time In-App-Purchase is required to access the Time-Value-of-Money (TVM), Cash Flow, Amortization, Bond, Depreciation, and Statistics functions.

The 12c modern addresses two critical issues for the user: (i) knowing what is stored in each of the calculator's internal registers, (ii) remembering the exact key sequences for getting specific calculations done.

The register views, accessible in the main screen, provides visibility into various register groups. You can switch between different groups of registers (such as  Financial, Cash Flow, Bond, etc.), and inspect stored values.

You can record your key strokes for specific calculations and store them as recipes. The recipes remove the burden of remembering the exact keystroke sequence for your tasks. You simply select a pre-recorded recipe (builtin or your own) and run. When running a recipe, the app visually prompts you with the keystrokes to press and guides you along in getting the results.

The app comes with 20 built-in recipes and allows you to add/record/edit/delete your own recipes. The convenient register view on the screen allows you to view register contents as your operations proceed.

## Key features

- HP 12c functionality reimplementation
- Interactive prompts and recipes
- Register views for data inspection
- Basic calculator functions included
- Advanced financial functions via IAP

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 12C Modern: full functionality | $5.99 | one-time |


## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/12c-modern/id6444529133/reviews.md

### 1/5 — Not fair

*2026-04-13*

Difficulty for shutdown this app

### 1/5 — Not free

*2026-04-11*

They try to charge you once you download it

### 3/5 — Outros idiomas

*2026-01-08*

Querem cobrar para utilizar qualquer conta simples, mas deveriam colocar outros idiomas como o Português, espanhol e etc.

### 1/5 — TVM requires payment

*2025-09-16*

The one reason you want an HP 12C is to do TVM calculations this app won’t do them unless you pay for the upgrade.

### 1/5 — Misleading

*2025-05-13*

Forget this app!  They make you believe it’s free but as soon you want to perform a calculation, it asks you to upgrade.
Just by the real app from HP.  No gimmicks there!

### 1/5 — Not Free

*2025-03-09*

Free to download but forces a paid upgrade right when you try to do any financial calculation

### 4/5 — How do u exit program?

*2025-02-27*

Like program been using a hp12c for years.     It is very hard to exit program.   Scipe the screen it take 5-6 times to exit

### 3/5 — Cool, but…

*2024-12-04*

It works but I don’t get the difference between the free and paid versions. Also, is there any way to make it work in portrait mode?

### 5/5 — RPN Calculator

*2024-07-06*

Easy one the nicest RPN calculators to work with. Has all HP functions including the % key. Great job.

### 1/5 — Tem que pagar

*2024-06-02*

O design é bom, porém, tem que pagar para usar várias funcionalidades, como PV… Então apaguei, pois assim não me adianta.

## Frequently asked questions about 12C

### What is the 12C - Modern app?

The 12C - Modern app is a digital reimplementation of the classic HP 12c financial calculator. It offers the original functionality along with modern features like interactive prompts and detailed register views to aid users in financial calculations.

### What financial functions are included in the free version of 12C - Modern?

The free version of 12C - Modern provides basic calculator functions, math functions, percentage calculations, calendar features, and memory functions. Advanced financial tools require an in-app purchase.

### What advanced financial functions can I unlock with the in-app purchase for 12C - Modern?

The one-time in-app purchase unlocks crucial financial functions including Time-Value-of-Money (TVM), Cash Flow analysis, Amortization schedules, Bond calculations, Depreciation, and Statistics functions.

### How does 12C - Modern help users remember complex calculations?

The app features a 'recipes' system where users can record and store exact key sequences for specific calculations. When a recipe is run, the app provides visual prompts for each keystroke, guiding the user through the process.

### What are 'register views' in 12C - Modern?

Register views provide visibility into the calculator's internal registers, allowing users to see stored values in various groups such as Financial, Cash Flow, and Bond. This helps users understand what data is currently stored and being used in calculations.

### Is 12C - Modern available on Android devices?

Based on the provided data, 12C - Modern is supported on iPhone and iPad. There is no information indicating availability on Android devices.

### How often is 12C - Modern updated?

The app was last updated on May 27, 2025, indicating active development. The current version is 1.0.3, released on November 21, 2022.

### What is the user sentiment for 12C - Modern?

The app has a rating of 3.6 stars from 8 ratings. This suggests a mixed but generally positive reception from its current user base.

## Version history (last 4 releases)

### 1.0.4 — 2026-08-10

Minor update

### 1.0.3 — 2025-05-27

Settings option to allow "," as digit separator

### 1.0.2 — 2023-12-06

Minor fixes.

### 1.0.1 — 2022-11-21

No release notes.

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All apps by Anishu, Inc.: https://appshunter.io/developer/306257913

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-27.*