# Metric Conversion tool vs CAT

The clearest difference is ads: CAT at none against Metric Conversion tool's shown. CAT also leads on rating (5.0 vs 4.8) and iOS requirement (13.0 vs 15.1). Metric Conversion tool's advantage is ratings volume (15K vs 2). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CAT holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Metric Conversion tool has 15K ratings behind it against 2, so its average is the more settled of the two.

Metric Conversion tool ships an update fortnightly, CAT every 9 days. The most recent releases landed on October 19, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Metric Conversion tool | CAT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (15K ratings)](https://appshunter.io/ios/app/metric-conversion-tool/id1439430070/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cat-uxo/id6720751417/reviews)** |
| Number of ratings | **15K** | 2 |
| Positive reviews | 70.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | Free | Free |
| Size | 57 MB | 28 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Wight Hat](https://appshunter.io/developer/1425885740) | [CAT-UXO LTD](https://appshunter.io/developer/552322705) |

## What reviewers say

### Metric Conversion tool

[App page](https://appshunter.io/ios/app/metric-conversion-tool/id1439430070)

This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.

**Highlights:** Offline functionality, Over 30,000 unit conversions, 160+ currencies with live rates, Save favorite conversions, Answers in fractions, Up to 5 decimal places

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

**In-app purchases:** none

**What reviewers like**

- 💡 Useful conversion tool
- 👍 Easy to use and navigate
- 🚀 Quick and efficient
- 👍 Comprehensive coverage of conversions

**What reviewers complain about**

- 🔊 Intrusive and loud ads
- 🔒 Questionable privacy practices
- 🐛 Inaccurate conversions
- 👎 Disruptive to workflow

**Reported bugs**

- Temperature conversion displaying incorrect values
- Ads triggering false memory full warnings

**Requested features**

- Paid version to remove ads
- Option to display results in preferred format
- Speed conversion (mph, km/h, etc.)


### CAT

[App page](https://appshunter.io/ios/app/cat-uxo/id6720751417)

This app fosters a global community to share information and increase awareness about explosive hazards. By pooling knowledge, users contribute to saving lives and improving safety worldwide.

**Highlights:** Collate information on explosive hazards, Raise awareness of global explosive threats, Connect the EOD community, Contribute to saving lives, Improve safety through shared knowledge

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

**In-app purchases:** none


## Frequently asked questions

### Is Metric Conversion tool free?

Metric Conversion tool is free to download, with no in-app purchases.

### Is CAT free?

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

### Which has better reviews, Metric Conversion tool or CAT?

CAT is rated higher. Metric Conversion tool averages 4.8 out of 5 from 15K ratings, while CAT averages 5.0 from 2 ratings.

### Do Metric Conversion tool or CAT have ads?

Metric Conversion tool shows ads; CAT does not.

### Which is updated more often, Metric Conversion tool or CAT?

Metric Conversion tool ships an update fortnightly, and CAT every 9 days. Most recently, Metric Conversion tool was updated on October 19, 2026 and CAT on October 7, 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.*