# 12Calc vs 12C

The clearest difference is review sentiment: 12Calc at 96% against 12C's 21%. 12Calc also leads on rating (4.9 vs 3.1) and in-app purchases (none vs 1). 12C's advantage is price (Free vs $8.99) and iOS requirement (12.0 vs 17.6). On ads and device support there is nothing between them.

12C is free to download; 12Calc costs $8.99 up front. 12C sells 1 one-off in-app purchase. 12Calc asks for nothing beyond the download.

12Calc holds the better App Store score, 4.9 against 3.1. That said, the two scores are not equally well evidenced: 12Calc has 926 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 96% of 12Calc's written reviews are positive against 21% of 12C's.

12Calc ships an update every 5 months, 12C every 15 months. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 12Calc | 12C |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.9 (926 ratings)](https://appshunter.io/ios/app/12calc/id780780002/reviews)** | [3.1 (10 ratings)](https://appshunter.io/ios/app/12c-modern/id6444529133/reviews) |
| Number of ratings | **926** | 10 |
| Positive reviews | **95.9% of reviews** | 21.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 15 months |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#157** | — |
| Size | 6 MB | 15 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ernest Brock](https://appshunter.io/developer/289555912) | [Anishu, Inc.](https://appshunter.io/developer/306257913) |

## What reviewers say

### 12Calc

[App page](https://appshunter.io/ios/app/12calc/id780780002)

**Currently charting:** #157 Top Paid · Finance (US App Store)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### 12C

[App page](https://appshunter.io/ios/app/12c-modern/id6444529133)

This app replicates the functionality of a classic financial calculator, offering modern enhancements like interactive prompts and register views. It provides basic calculator, math, percentage, calendar, and memory functions for free, with advanced financial tools available via a one-time purchase.

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is 12Calc free?

12Calc costs $8.99, with no in-app purchases.

### Is 12C free?

12C is free to download, with in-app purchases available.

### Which has better reviews, 12Calc or 12C?

12Calc is rated higher. 12Calc averages 4.9 out of 5 from 926 ratings, while 12C averages 3.1 from 10 ratings.

### Do 12Calc or 12C have ads?

Neither 12Calc nor 12C shows ads.

### Which is updated more often, 12Calc or 12C?

12Calc ships an update every 5 months, and 12C every 15 months. Most recently, 12Calc was updated on October 29, 2026 and 12C on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*