# Calculator vs Conversion Calculator

The clearest difference is in-app purchases: Calculator at none against Conversion Calculator's 1. Calculator also leads on update cadence (every 2 weeks vs every 5 weeks) and rating (5.0 vs 4.8). Conversion Calculator's advantage is ads (none vs shown) and ratings volume (165 vs 1). On price and device support there is nothing between them.

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

Calculator holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Conversion Calculator has 165 ratings behind it against 1, so its average is the more settled of the two.

Calculator ships an update every 2 weeks, Conversion Calculator every 5 weeks. The most recent releases landed on October 12, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Calculator | Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calculator-unit-converter/id1586576273/reviews)** | [4.8 (165 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews) |
| Number of ratings | 1 | **165** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 32 MB | 10 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Apero Technologies Group](https://appshunter.io/developer/1740698764) | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) |

## What reviewers say

### Calculator

[App page](https://appshunter.io/ios/app/calculator-unit-converter/id1586576273)

This utility app offers a comprehensive suite of calculation tools for everyday needs. It includes basic and scientific functions, unit and currency conversions, world time, health metrics, and GPA calculation. Customize your calculator experience with practical, easy-to-use features.

**Highlights:** Basic and scientific calculations, Unit conversion (length, weight, volume, etc.), Currency conversion with real-time rates, World time conversion for over 400 cities, Health calculator (BMI, BMR), GPA calculator, Customizable functions and constants

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

**In-app purchases:** none


### Conversion Calculator

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

This utility app offers a comprehensive unit conversion tool for various needs, including cooking, travel, and work. It supports over 120 units across 15 categories, with metric and imperial options. The app works offline and allows for customization of displayed decimals and category order.

**Highlights:** 15 categories and 120+ units, Metric and imperial conversions, Cooking, weight, length, temperature, and more, Offline functionality, Customizable decimal display, Apple Watch app

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Calculator free?

Calculator 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, Calculator or Conversion Calculator?

Calculator is rated higher. Calculator averages 5.0 out of 5 from 1 ratings, while Conversion Calculator averages 4.8 from 165 ratings.

### Do Calculator or Conversion Calculator have ads?

Calculator shows ads; Conversion Calculator does not.

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

Calculator ships an update every 2 weeks, and Conversion Calculator every 5 weeks. Most recently, Calculator was updated on October 12, 2026 and Conversion Calculator on October 30, 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.*