# Converter vs Length Mass Speed Converter

The clearest difference is review sentiment: Converter at 94% against Length Mass Speed Converter's 50%. Converter also leads on in-app purchases (none vs 1) and ads (none vs shown). Length Mass Speed Converter's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Length Mass Speed Converter sells 1 in-app purchase, starting at $14.99 per month. Converter asks for nothing beyond the download.

Converter holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Converter has 981 ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 94% of Converter's written reviews are positive against 50% of Length Mass Speed Converter's.

Converter ships an update every 2 months, Length Mass Speed Converter every 4 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Converter | Length Mass Speed Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (981 ratings)](https://appshunter.io/ios/app/converter-universal-conversion/id423521445/reviews)** | [4.6 (14 ratings)](https://appshunter.io/ios/app/length-mass-speed-converter/id1421135749/reviews) |
| Number of ratings | **981** | 14 |
| Positive reviews | **93.9% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 7 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [AR Code Pte. Ltd.](https://appshunter.io/developer/1761134422) |

## What reviewers say

### Converter

[App page](https://appshunter.io/ios/app/converter-universal-conversion/id423521445)

This app offers a comprehensive unit and hardness conversion tool with an easy-to-use interface. It includes currency conversion with updated exchange rates, over 300 engineering and scientific units, and a specialized hardness converter. Additional features like timezone conversion, pace calculation, and a standard calculator enhance its utility.

**Highlights:** Currency converter with live exchange rates, Over 300 engineering and scientific units, Specialized hardness converter, Timezone conversion, Running pace calculator, Integrated standard calculator, Conversion history log

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate and fast conversions
- 💡 Comprehensive coverage of units and categories
- 🔒 No ads or hidden fees
- 💡 Useful currency converter

**What reviewers complain about**

- 🐛 Currency conversion rates can be outdated
- 🔍 Difficult to find specific conversions due to large number of options
- 💡 Lack of ability to set favorite conversions as default

**Reported bugs**

- Occasional crashes on startup for non-English/German users
- Conversion from meters to feet does not show inches

**Requested features**

- Add fuel efficiency conversions
- Allow users to set favorite conversions as default
- Improve currency conversion rate updates


### Length Mass Speed Converter

[App page](https://appshunter.io/ios/app/length-mass-speed-converter/id1421135749)

Easily convert between various units of measurement across 15 categories, including length, mass, volume, speed, and temperature. Offers a premium subscription for advanced features and an ad-free experience.

**Highlights:** Distance/length conversions, Area conversions, Volume conversions, Mass conversions, Speed conversions, Temperature conversions, 15 measurement categories

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Converter Premium | $14.99 | per month |


## Frequently asked questions

### Is Converter free?

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

### Is Length Mass Speed Converter free?

Length Mass Speed Converter is free to download, with in-app purchases available.

### Which has better reviews, Converter or Length Mass Speed Converter?

Converter is rated higher. Converter averages 4.9 out of 5 from 981 ratings, while Length Mass Speed Converter averages 4.6 from 14 ratings.

### Do Converter or Length Mass Speed Converter have ads?

Length Mass Speed Converter shows ads; Converter does not.

### Which is updated more often, Converter or Length Mass Speed Converter?

Converter ships an update every 2 months, and Length Mass Speed Converter every 4 months. Most recently, Converter was updated on October 25, 2026 and Length Mass Speed Converter on October 24, 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.*