# Calzy vs Calcularium

The clearest difference is price: Calcularium at Free against Calzy's $1.99. Calcularium also leads on iOS requirement (18.0 vs 26.0). Calzy's advantage is ads (none vs shown) and update cadence (every 2 days vs fortnightly). On rating, ratings volume, in-app purchases and device support there is nothing between them.

Calcularium is free to download; Calzy costs $1.99 up front. Calzy sells 3 one-off in-app purchases and Calcularium sells 7 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for Calzy against 4.6 for Calcularium. Both are backed by a comparable volume of ratings — 1.9K and 2.2K respectively. Written reviews are what separate them: 77% of Calzy's written reviews are positive against 67% of Calcularium's.

Calzy ships an update every 2 days, Calcularium fortnightly. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Calzy | Calcularium |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.7 (1.9K ratings)](https://appshunter.io/ios/app/calzy/id623690732/reviews)** | [4.6 (2.2K ratings)](https://appshunter.io/ios/app/calcularium/id824113384/reviews) |
| Number of ratings | 1.9K | **2.2K** |
| Positive reviews | **76.6% of reviews** | 67.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Fortnightly |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#53** | — |
| Size | 66 MB | 52 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Raja Vijayaraman](https://appshunter.io/developer/562575890) | [InVooDoo LLC](https://appshunter.io/developer/1173246186) |

## What reviewers say

### Calzy

[App page](https://appshunter.io/ios/app/calzy/id623690732)

**Currently charting:** #53 Top Paid · Productivity (US App Store)

This app offers a modern and intuitive way to perform everyday calculations. It features a unique Memory Area for reusing values, bookmarking for saved calculations, and leverages the latest iOS technologies for a seamless experience. Designed with privacy in mind, it's suitable for students and professionals alike.

**Highlights:** Memory Area for reusing values, Calculation bookmarking with titles, Basic and advanced calculation modes, Privacy mode with Face ID, Live Activity and Haptic Touch support, Customizable keypad layout, Dark and Light modes

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $3.99 | one-time |
| Huge Tip | $9.99 | one-time |


### 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


## Frequently asked questions

### Is Calzy free?

Calzy costs $1.99, and also offers in-app purchases.

### Is Calcularium free?

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

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

Calzy is rated higher. Calzy averages 4.7 out of 5 from 1.9K ratings, while Calcularium averages 4.6 from 2.2K ratings.

### Do Calzy or Calcularium have ads?

Calcularium shows ads; Calzy does not.

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

Calzy ships an update every 2 days, and Calcularium fortnightly. Most recently, Calzy was updated on October 17, 2026 and Calcularium on October 15, 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.*