# Basic Calculator vs Conversion Calculator Units

Basic Calculator and Conversion Calculator Units are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Basic Calculator sells 1 one-off in-app purchase and Conversion Calculator Units sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Basic Calculator against 4.7 for Conversion Calculator Units. Both are backed by a comparable volume of ratings — 3.2K and 5K respectively. Written reviews are what separate them: 74% of Basic Calculator's written reviews are positive against 82% of Conversion Calculator Units's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Basic Calculator | Conversion Calculator Units |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (3.2K ratings)](https://appshunter.io/ios/app/basic-calculator-classic-calc/id430271248/reviews)** | [4.7 (5K ratings)](https://appshunter.io/ios/app/conversion-calculator-units/id727632233/reviews) |
| Number of ratings | 3.2K | **5K** |
| Positive reviews | 74.3% of reviews | **82.1% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 93 MB | 41 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +4 | 4+ |
| Developer | [MobArts](https://appshunter.io/developer/429185872) | [RV AppStudios LLC](https://appshunter.io/developer/340181308) |

## What reviewers say

### Basic Calculator

[App page](https://appshunter.io/ios/app/basic-calculator-classic-calc/id430271248)

A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.

**Highlights:** Large, easy-to-press buttons, Multiple beautiful skins, Basic arithmetic operations, Standard memory functions, Supports large numbers (up to 60 digits), Multitasking support (Split View, Slide Over)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Banner Ad Removal | $0.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Useful copy and paste functions
- 👍 Clear and large display
- 👍 Variety of skins/themes
- 👍 Responsive and fast

**What reviewers complain about**

- 🐛 Compatibility issues with iOS updates
- 🐛 Inaccurate calculations with larger numbers
- 🔋 Slow load times
- 🔍 Intrusive ads

**Reported bugs**

- Crashes or freezes after iOS updates
- Percent key not functioning correctly

**Requested features**

- Reinstate iPhone version
- Add scientific calculator functions
- Improve memory retention


### Conversion Calculator Units

[App page](https://appshunter.io/ios/app/conversion-calculator-units/id727632233)

This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.

**Highlights:** Converts over 140 units, Supports 12 conversion categories, Customizable themes, Drag and set unit positions, Add units to favorites, Share converted units via email

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |

**What reviewers like**

- 👍 User-friendly
- 🚀 Easy to use
- 💡 Helpful for learning metric system
- 👍 Great for conversions
- 👍 Intuitive interface

**What reviewers complain about**

- 🐛 Ads disrupt usage
- 🐛 Difficult to change units
- 🐛 Lacks portrait mode
- 🐛 Upside-down orientation issues
- 🐛 Cluttered UI design

**Reported bugs**

- Ads not removed after purchase
- Incorrect unit conversions

**Requested features**

- Add pressure conversion units
- Include a basic calculator function
- Implement multi-language support
- Allow customization of unit order


## Frequently asked questions

### Is Basic Calculator free?

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

### Is Conversion Calculator Units free?

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

### Which has better reviews, Basic Calculator or Conversion Calculator Units?

Basic Calculator is rated higher. Basic Calculator averages 4.8 out of 5 from 3.2K ratings, while Conversion Calculator Units averages 4.7 from 5K ratings.

### Do Basic Calculator or Conversion Calculator Units have ads?

Both Basic Calculator and Conversion Calculator Units show ads.

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

Basic Calculator ships an update every 2 months, and Conversion Calculator Units every 2 months. Most recently, Basic Calculator was updated on September 23, 2026 and Conversion Calculator Units 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.*