# Units+ vs Units2Units

The clearest difference is ads: Units2Units at none against Units+'s shown. Units2Units also leads on update cadence (every 6 days vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Units+ sells 2 one-off in-app purchases and Units2Units sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Units+ ships an update every 5 months, Units2Units every 6 days. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Units+ | Units2Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (375 ratings)](https://appshunter.io/ios/app/units-plus/id687296545/reviews)** | — |
| Number of ratings | **375** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 6 days** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 44 MB |
| Requires iOS | **15.5** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hebaallah Hossameldien](https://appshunter.io/developer/1632619093) | [GnitoApp.com](https://appshunter.io/developer/1804710946) |

## 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


### Units2Units

[App page](https://appshunter.io/ios/app/units2units/id6778024693)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $4.99 | one-time |


## Frequently asked questions

### Is Units+ free?

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

### Is Units2Units free?

Units2Units is free to download, with in-app purchases available.

### Do Units+ or Units2Units have ads?

Units+ shows ads; Units2Units does not.

### Which is updated more often, Units+ or Units2Units?

Units+ ships an update every 5 months, and Units2Units every 6 days. Most recently, Units+ was updated on October 10, 2026 and Units2Units on October 4, 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.*