# Conversion Calculator Units vs Calculator+

The clearest difference is rating: Conversion Calculator Units at 4.7 against Calculator+'s 4.0. Conversion Calculator Units also leads on ratings volume (5K vs 1) and update cadence (every 2 months vs every 5 months). Calculator+'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Conversion Calculator Units sells 1 one-off in-app purchase. Calculator+ asks for nothing beyond the download.

Conversion Calculator Units holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 82% of Conversion Calculator Units's written reviews are positive against 100% of Calculator+'s, so the app with the better star average is not the one people write more warmly about.

Conversion Calculator Units ships an update every 2 months, Calculator+ every 5 months. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Calculator+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/calculator-plus-unit-conversion/id1540403294/reviews) |
| Number of ratings | **5K** | 1 |
| Positive reviews | 82.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 41 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [OnePercent](https://appshunter.io/developer/1536020418) |

## What reviewers say

### Conversion Calculator Units

[App page](https://appshunter.io/ios/app/conversion-calculator-units/id727632233)

This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.

**Highlights:** Converts over 140 units, Supports 12 conversion categories, Customizable themes, Drag and set unit positions, Add units to favorites, Share converted units via email

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 User-friendly
- 🚀 Easy to use
- 💡 Helpful for learning metric system
- 👍 Great for conversions
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Ads disrupt usage
- 🐛 Difficult to change units
- 🐛 Lacks portrait mode
- 🐛 Upside-down orientation issues
- 🐛 Cluttered UI design

**Reported bugs**

- Ads not removed after purchase
- Incorrect unit conversions

**Requested features**

- Add pressure conversion units
- Include a basic calculator function
- Implement multi-language support
- Allow customization of unit order


### Calculator+

[App page](https://appshunter.io/ios/app/calculator-plus-unit-conversion/id1540403294)

This advanced utility app offers a comprehensive suite of calculation and conversion tools, serving as a powerful alternative to standard device calculators. It features a sleek interface and supports a wide range of everyday and scientific computations, including unit conversions for length, area, volume, and more.

**Highlights:** General and scientific calculations, Extensive unit conversions (length, area, volume, etc.), BMI, investment, EMI, and tax calculators, Customizable graphical user interface, Calculation history log, Adjustable answer precision

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

**In-app purchases:** none


## Frequently asked questions

### Is Conversion Calculator Units free?

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

### Is Calculator+ free?

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

### Which has better reviews, Conversion Calculator Units or Calculator+?

Conversion Calculator Units is rated higher. Conversion Calculator Units averages 4.7 out of 5 from 5K ratings, while Calculator+ averages 4.0 from 1 ratings.

### Do Conversion Calculator Units or Calculator+ have ads?

Conversion Calculator Units shows ads; Calculator+ does not.

### Which is updated more often, Conversion Calculator Units or Calculator+?

Conversion Calculator Units ships an update every 2 months, and Calculator+ every 5 months. Most recently, Conversion Calculator Units was updated on October 13, 2026 and Calculator+ on October 1, 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.*