# Units vs Units+

The clearest difference is rating: Units+ at 4.8 against Units's 3.6. Units+ also leads on review sentiment (85% vs 60%). Units's advantage is update cadence (monthly vs every 5 months) and iOS requirement (13.5 vs 15.5). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Units sells 3 one-off in-app purchases and Units+ sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Units+ holds the better App Store score, 4.8 against 3.6. Both are backed by a comparable volume of ratings — 150 and 375 respectively. Written reviews point the same way: 60% of Units's written reviews are positive against 85% of Units+'s.

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

## The numbers

| Metric | Units | Units+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (150 ratings)](https://appshunter.io/ios/app/units-pro-unit-converter/id284574017/reviews) | **[4.8 (375 ratings)](https://appshunter.io/ios/app/units-plus/id687296545/reviews)** |
| Number of ratings | 150 | **375** |
| Positive reviews | 60.0% of reviews | **85.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 2 MB | 4 MB |
| Requires iOS | **13.5** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Homegrown Software Ltd](https://appshunter.io/developer/406645730) | [Hebaallah Hossameldien](https://appshunter.io/developer/1632619093) |

## What reviewers say

### Units

[App page](https://appshunter.io/ios/app/units-pro-unit-converter/id284574017)

Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.

**Highlights:** Hundreds of units across 43 categories, Daily updated currency exchange rates, Hide unused units, Reorder units and categories, Universal app support (iPhone, iPod touch, iPad)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |

**What reviewers like**

- 🚀 Efficient and fast conversions
- 👍 Comprehensive list of units
- 🔍 Customizable unit selection
- 💰 Free app with optional paid version
- 🔧 Useful for engineering and technical work

**What reviewers complain about**

- 🐛 Crashes and stability issues
- 🕰️ Outdated currency conversion rates
- 🔍 Too many unit categories, hard to navigate
- 💰 Ads in free version
- 📏 Ruler feature not accurate on some devices

**Reported bugs**

- Crashes when clearing input fields
- Numerical keypad covers conversion results
- Incompatibility issues with newer iOS versions
- Ruler measurements not accurate on all devices

**Requested features**

- Add nautical units (miles, knots)
- Improve currency conversion accuracy and updates
- Allow customization of visible unit categories
- Add more clothing/shoe size conversions
- Improve user interface and search functionality


### 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


## Frequently asked questions

### Is Units free?

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

### Is Units+ free?

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

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

Units+ is rated higher. Units averages 3.6 out of 5 from 150 ratings, while Units+ averages 4.8 from 375 ratings.

### Do Units or Units+ have ads?

Both Units and Units+ show ads.

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

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