# Calculator vs unitCalc

The clearest difference is in-app purchases: unitCalc at none against Calculator's 2. Calculator's advantage is iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Calculator sells 2 one-off in-app purchases. unitCalc asks for nothing beyond the download.

Calculator ships an update every 3 weeks, unitCalc monthly. Both last shipped on November 3, 2026.

## The numbers

| Metric | Calculator | unitCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calculator-currency-unit/id1583572133/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 19 MB | 1 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hua-shan cheng](https://appshunter.io/developer/1019388170) | [培祐 黃](https://appshunter.io/developer/1053411333) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-currency-unit/id1583572133)

This versatile tool combines a scientific calculator with currency and unit conversion capabilities. It offers a history manager, full editing options, and an intuitive interface for school, work, and daily tasks. Supports offline currency conversion.

**Highlights:** Scientific calculator functions, Currency converter with 37 currencies, Unit converter with 181 units, History manager for calculations, Offline currency conversion, Full editing options (undo/redo)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock iPad Landscape | $0.99 | one-time |
| Unlock History | $0.99 | one-time |


### unitCalc

[App page](https://appshunter.io/ios/app/unitcalc/id6445979881)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calculator free?

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

### Is unitCalc free?

unitCalc is free to download, with no in-app purchases.

### Do Calculator or unitCalc have ads?

Neither Calculator nor unitCalc shows ads.

### Which is updated more often, Calculator or unitCalc?

Calculator ships an update every 3 weeks, and unitCalc monthly. Most recently, Calculator was updated on November 3, 2026 and unitCalc on November 3, 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.*