# Calcularium vs WidgetCal

The clearest difference is ads: WidgetCal at none against Calcularium's shown. WidgetCal also leads on rating (5.0 vs 4.6). Calcularium's advantage is update cadence (fortnightly vs every 32 months) and ratings volume (2.2K vs 1). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Calcularium sells 7 in-app purchases, starting at $3.99 per month and WidgetCal sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

WidgetCal holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Calcularium has 2.2K ratings behind it against 1, so its average is the more settled of the two.

Calcularium ships an update fortnightly, WidgetCal every 32 months. The most recent releases landed on October 15, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Calcularium | WidgetCal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (2.2K ratings)](https://appshunter.io/ios/app/calcularium/id824113384/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/widgetcal-widget-calculator/id6468929338/reviews)** |
| Number of ratings | **2.2K** | 1 |
| Positive reviews | 67.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 32 months |
| Monetization | Free with in-app purchases | Freemium |
| Size | 52 MB | 3 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [InVooDoo LLC](https://appshunter.io/developer/1173246186) | [杏娣 吴](https://appshunter.io/developer/1275821426) |

## 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


### WidgetCal

[App page](https://appshunter.io/ios/app/widgetcal-widget-calculator/id6468929338)

Perform calculations directly from your home screen with advanced functions. Customize your experience with multiple themes. Unlock premium features through a subscription.

**Highlights:** Home screen widget calculator, Trigonometric and calculus functions, Over 10 beautiful themes, No ads, Monthly/annual subscription for Pro features

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WidgetCal Pro | $0.99 | per month |
| WidgetCal Pro | $3.99 | per year |


## Frequently asked questions

### Is Calcularium free?

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

### Is WidgetCal free?

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

### Which has better reviews, Calcularium or WidgetCal?

WidgetCal is rated higher. Calcularium averages 4.6 out of 5 from 2.2K ratings, while WidgetCal averages 5.0 from 1 ratings.

### Do Calcularium or WidgetCal have ads?

Calcularium shows ads; WidgetCal does not.

### Which is updated more often, Calcularium or WidgetCal?

Calcularium ships an update fortnightly, and WidgetCal every 32 months. Most recently, Calcularium was updated on October 15, 2026 and WidgetCal on September 27, 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.*