# Conversion Calculator Units vs Unit Plus Converter

The clearest difference is in-app purchases: Unit Plus Converter at none against Conversion Calculator Units's 1. Unit Plus Converter also leads on ads (none vs shown) and review sentiment (100% vs 82%). Conversion Calculator Units's advantage is ratings volume (5K vs 564). On price, rating, update cadence and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.7 for Conversion Calculator Units against 4.7 for Unit Plus Converter. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 564, so its average is the more settled of the two. Written reviews are what separate them: 82% of Conversion Calculator Units's written reviews are positive against 100% of Unit Plus Converter's.

Conversion Calculator Units ships an update every 2 months, Unit Plus Converter every 5 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Conversion Calculator Units | Unit Plus Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) | [4.7 (564 ratings)](https://appshunter.io/ios/app/unit-plus-converter/id1475355288/reviews) |
| Number of ratings | **5K** | 564 |
| 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 | 13 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RV AppStudios LLC](https://appshunter.io/developer/340181308) | [Harjot Singh](https://appshunter.io/developer/1084273258) |

## 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


### Unit Plus Converter

[App page](https://appshunter.io/ios/app/unit-plus-converter/id1475355288)

Easily convert between numerous units and metrics with this intuitive application. It offers over 100 common conversion units across various categories, presented in a simple and elegant interface.

**Highlights:** Over 100 conversion units, Multiple categories, Area conversion, Data conversion, Length conversion, Temperature conversion, Weight-mass conversion

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

**In-app purchases:** none

**What reviewers like**

- 👍 Brilliantly designed
- 👍 Easy to use
- 👍 No annoying banner ads
- 👍 Simple and clear interface
- 👍 Clean design

**What reviewers complain about**

- 🐛 Accuracy concerns (mpg to l/100km)
- 🐛 Conversion accuracy may be an issue

**Requested features**

- Kilogram to stones/pounds conversion
- Fractions of an inch down to 1/32” as a choice for conversion to mm


## Frequently asked questions

### Is Conversion Calculator Units free?

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

### Is Unit Plus Converter free?

Unit Plus Converter is free to download, with no in-app purchases.

### Which has better reviews, Conversion Calculator Units or Unit Plus Converter?

Conversion Calculator Units and Unit Plus Converter are both rated 4.7 out of 5 on the App Store, from 5K and 564 ratings respectively.

### Do Conversion Calculator Units or Unit Plus Converter have ads?

Conversion Calculator Units shows ads; Unit Plus Converter does not.

### Which is updated more often, Conversion Calculator Units or Unit Plus Converter?

Conversion Calculator Units ships an update every 2 months, and Unit Plus Converter every 5 months. Most recently, Conversion Calculator Units was updated on October 13, 2026 and Unit Plus Converter on October 14, 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.*