# 12Calc vs 10bII+

The clearest difference is review sentiment: 12Calc at 96% against 10bII+'s 10%. 12Calc also leads on rating (4.9 vs 1.9) and in-app purchases (none vs 1). 10bII+'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.

10bII+ is free to download; 12Calc costs $8.99 up front. 10bII+ sells 1 one-off in-app purchase. 12Calc asks for nothing beyond the download.

12Calc holds the better App Store score, 4.9 against 1.9. That said, the two scores are not equally well evidenced: 12Calc has 916 ratings behind it against 9, 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 10% of 10bII+'s.

12Calc ships an update every 5 months, 10bII+ every 15 months. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 12Calc | 10bII+ |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.9 (916 ratings)](https://appshunter.io/ios/app/12calc/id780780002/reviews)** | [1.9 (9 ratings)](https://appshunter.io/ios/app/10bii-plus/id6444637585/reviews) |
| Number of ratings | **916** | 9 |
| Positive reviews | **95.9% of reviews** | 10.0% 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 | **#91** | — |
| 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:** #91 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


### 10bII+

[App page](https://appshunter.io/ios/app/10bii-plus/id6444637585)

This app is a financial calculator that replicates the functionality of a popular physical calculator. It offers basic functions for free, with advanced financial worksheets available through a one-time purchase. Features include interactive prompts and register views to help users understand and remember calculations.

**Highlights:** Full HP 10bII+ functionality, Interactive prompts and recipes, Register views for stored values, Basic calculator functions included, Advanced financial worksheets via IAP, Customizable recipe recording

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10bII+: Full Functionality | $5.99 | one-time |


## Frequently asked questions

### Is 12Calc free?

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

### Is 10bII+ free?

10bII+ is free to download, with in-app purchases available.

### Which has better reviews, 12Calc or 10bII+?

12Calc is rated higher. 12Calc averages 4.9 out of 5 from 916 ratings, while 10bII+ averages 1.9 from 9 ratings.

### Do 12Calc or 10bII+ have ads?

Neither 12Calc nor 10bII+ shows ads.

### Which is updated more often, 12Calc or 10bII+?

12Calc ships an update every 5 months, and 10bII+ every 15 months. Most recently, 12Calc was updated on October 15, 2026 and 10bII+ on October 4, 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.*