# Units+ vs Conversion Calculator Units

The clearest difference is ratings volume: Conversion Calculator Units at 5K against Units+'s 375. Conversion Calculator Units also leads on update cadence (every 2 months vs every 5 months). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Units+ sells 2 one-off in-app purchases and Conversion Calculator Units sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Units+ against 4.7 for Conversion Calculator Units. That said, the two scores are not equally well evidenced: Conversion Calculator Units has 5K ratings behind it against 375, so its average is the more settled of the two. Written reviews are what separate them: 85% of Units+'s written reviews are positive against 82% of Conversion Calculator Units's.

Units+ ships an update every 5 months, Conversion Calculator Units every 2 months. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Units+ | Conversion Calculator Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (375 ratings)](https://appshunter.io/ios/app/units-plus/id687296545/reviews)** | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) |
| Number of ratings | 375 | **5K** |
| Positive reviews | **85.0% of reviews** | 82.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 4 MB | 41 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hebaallah Hossameldien](https://appshunter.io/developer/1632619093) | [RV AppStudios LLC](https://appshunter.io/developer/340181308) |

## What reviewers say

### Units+

[App page](https://appshunter.io/ios/app/units-plus/id687296545)

Easily convert between over 260 measurement units across 22 categories and get real-time currency exchange rates for more than 160 currencies. Quickly find units or bookmark frequent conversions for efficient use.

**Highlights:** 260+ measurement units, 22 unit categories, 160+ currencies, Real-time exchange rates, Unit search, Bookmarking conversions

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro Features | Free | one-time |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 👍 Reliable tool
- 👍 Versatile converter
- 👍 Great for various conversions (mass, temps, currency, distances)
- 👍 Does what it needs to do

**What reviewers complain about**

- 😠 Too many ads
- 😠 Ads without an X to close
- 😠 Negative sentiment towards the app's creator/provider (implied by one review)
- 😐 Fuel economy display issues (mpg/liters to 100)
- 😐 Some discrepancy in currency accuracy noted

**Reported bugs**

- Ads don't have an X to close

**Requested features**

- Add a Notification Center widget
- Way to mark favorite types of conversions


### 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


## Frequently asked questions

### Is Units+ free?

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

### Is Conversion Calculator Units free?

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

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

Units+ is rated higher. Units+ averages 4.8 out of 5 from 375 ratings, while Conversion Calculator Units averages 4.7 from 5K ratings.

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

Both Units+ and Conversion Calculator Units show ads.

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

Units+ ships an update every 5 months, and Conversion Calculator Units every 2 months. Most recently, Units+ was updated on September 23, 2026 and Conversion Calculator Units on September 25, 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.*