# Converter vs Conversion Calculator

The clearest difference is in-app purchases: Converter at none against Conversion Calculator's 1. Converter also leads on ratings volume (897 vs 157) and iOS requirement (15.6 vs 17.0). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Conversion Calculator sells 1 one-off in-app purchase. Converter asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Converter against 4.8 for Conversion Calculator. That said, the two scores are not equally well evidenced: Converter has 897 ratings behind it against 157, so its average is the more settled of the two. Written reviews are what separate them: 96% of Converter's written reviews are positive against 100% of Conversion Calculator's.

Converter ships an update every 2 months, Conversion Calculator every 5 weeks. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Converter | Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (897 ratings)](https://appshunter.io/ios/app/converter-universal-conversion/id423521445/reviews)** | [4.8 (157 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews) |
| Number of ratings | **897** | 157 |
| Positive reviews | 96.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 37 MB | 7 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Trelleborg Sealing Solutions](https://appshunter.io/developer/396863758) | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) |

## 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


### Conversion Calculator

[App page](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523)

Easily convert between metric and imperial units for weight, length, temperature, area, and time. This app offers precise, fast results with a clean interface, working offline for daily, travel, school, or work needs.

**Highlights:** Metric and imperial unit conversion, Weight, length, temperature, area, time, Offline functionality, Precise and fast results, Clean and minimal interface, Over 100 measurement types

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access forever | $8.99 | one-time |


## Frequently asked questions

### Is Converter free?

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

### Is Conversion Calculator free?

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

### Which has better reviews, Converter or Conversion Calculator?

Converter is rated higher. Converter averages 4.9 out of 5 from 897 ratings, while Conversion Calculator averages 4.8 from 157 ratings.

### Do Converter or Conversion Calculator have ads?

Neither Converter nor Conversion Calculator shows ads.

### Which is updated more often, Converter or Conversion Calculator?

Converter ships an update every 2 months, and Conversion Calculator every 5 weeks. Most recently, Converter was updated on September 21, 2026 and Conversion Calculator on September 22, 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.*