# Calcularium vs Conversion Calculator Plus

The clearest difference is update cadence: Conversion Calculator Plus at weekly against Calcularium's fortnightly. Conversion Calculator Plus also leads on ratings volume (15K vs 2.2K) and iOS requirement (15.0 vs 18.0). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Calcularium sells 7 in-app purchases, starting at $3.99 per month and Conversion Calculator Plus sells 1 in-app purchase, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Calcularium against 4.7 for Conversion Calculator Plus. That said, the two scores are not equally well evidenced: Conversion Calculator Plus has 15K ratings behind it against 2.2K, so its average is the more settled of the two. Written reviews are what separate them: 67% of Calcularium's written reviews are positive against 69% of Conversion Calculator Plus's.

Calcularium ships an update fortnightly, Conversion Calculator Plus weekly. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Calcularium | Conversion Calculator Plus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (2.2K ratings)](https://appshunter.io/ios/app/calcularium/id824113384/reviews) | **[4.7 (15K ratings)](https://appshunter.io/ios/app/conversion-calculator-plus/id1113920724/reviews)** |
| Number of ratings | 2.2K | **15K** |
| Positive reviews | 67.3% of reviews | **69.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 52 MB | 58 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [InVooDoo LLC](https://appshunter.io/developer/1173246186) | [Adysseus](https://appshunter.io/developer/447444997) |

## What reviewers say

### Calcularium

[App page](https://appshunter.io/ios/app/calcularium/id824113384)

This app offers real-time calculations, allowing you to see results as you type. It goes beyond basic arithmetic with advanced functions, unit conversions, and customizable expressions, acting as a powerful helper for complex calculations.

**Highlights:** Reactive Calculations, Voice Control (Siri), Script and Photo Input, Multi-Level Sub-Calculations, Editable History, Unit and Currency Conversion, Customizable Functions

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Almighty Version | $3.99 | per month |
| Almighty Version | $4.99 | per 6 months |
| InVooDoo One | $5.99 | per month |
| Almighty Version | $29.99 | per year |
| Unlock Pro Version | $199.99 | one-time |
| Lifetime Almighty Version | $199.99 | one-time |
| Remove Ads Only | $199.99 | one-time |

**What reviewers like**

- 🚀 Powerful and feature-packed
- 👍 Easy to use with great tutorials
- 🎨 Beautiful and customizable design
- 💡 Innovative features like real-time calculation
- 🙌 Excellent value for money

**What reviewers complain about**

- 🔍 Confusing or unintuitive interface
- 📢 Excessive advertisements
- 🐛 Calculation errors or inconsistencies
- 🔒 Limited functionality in free version

**Reported bugs**

- Crashes or freezes on certain devices
- Incompatibility with older iOS versions
- Issues with calculator widget functionality

**Requested features**

- Add basic calculator functions like equal and clear buttons
- Improve unit conversion and scientific functions
- Integrate with Shortcuts and Siri
- Provide more customization options


### Conversion Calculator Plus

[App page](https://appshunter.io/ios/app/conversion-calculator-plus/id1113920724)

This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.

**Highlights:** Unit and currency conversion, Supports 160+ currencies (real & crypto), Automatic currency exchange rate updates, Simple or carousel design options, Dark Mode support, Customizable home screen layout, Split screen mode on iPad

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads For One Year | $9.99 | per year |

**What reviewers like**

- 🚀 Great app
- 👍 Easy to use
- 🚀 Comprehensive conversions
- 👍 Intuitive interface
- 🚀 Useful tool

**What reviewers complain about**

- 🐛 Consent required for tracking
- 🐛 Update problems
- 🐛 Currency not updating
- 🔒 Forced to allow tracking
- 🔒 Forced to subscribe or view ads

**Reported bugs**

- Currency conversion not working
- App gets stuck on consent page
- Unable to get past ads/subscription page

**Requested features**

- Add running pace conversions
- Add shoe size converter
- Provide paid ad-free version


## Frequently asked questions

### Is Calcularium free?

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

### Is Conversion Calculator Plus free?

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

### Which has better reviews, Calcularium or Conversion Calculator Plus?

Conversion Calculator Plus is rated higher. Calcularium averages 4.6 out of 5 from 2.2K ratings, while Conversion Calculator Plus averages 4.7 from 15K ratings.

### Do Calcularium or Conversion Calculator Plus have ads?

Both Calcularium and Conversion Calculator Plus show ads.

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

Calcularium ships an update fortnightly, and Conversion Calculator Plus weekly. Most recently, Calcularium was updated on September 16, 2026 and Conversion Calculator Plus 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.*