# Calcularium vs amplifyCRM Pro

The clearest difference is in-app purchases: amplifyCRM Pro at none against Calcularium's 7. amplifyCRM Pro also leads on ads (none vs shown) and rating (5.0 vs 4.6). Calcularium's advantage is ratings volume (2.2K vs 1) and update cadence (fortnightly vs every 2 months). On price 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. amplifyCRM Pro asks for nothing beyond the download.

amplifyCRM Pro 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, amplifyCRM Pro every 2 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calcularium | amplifyCRM Pro |
| --- | --- | --- |
| 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/amplifycrm-pro/id1665724224/reviews)** |
| Number of ratings | **2.2K** | 1 |
| Positive reviews | 67.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 52 MB | 340 MB |
| Requires iOS | 18.0 | **16.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [InVooDoo LLC](https://appshunter.io/developer/1173246186) | [Dustin Potter](https://appshunter.io/developer/1665724226) |

## 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


### amplifyCRM Pro

[App page](https://appshunter.io/ios/app/amplifycrm-pro/id1665724224)

Streamline your hearing care practice with an all-in-one platform for messaging, scheduling, and automation. Increase patient conversion, manage communications across multiple channels, and automate marketing to keep your schedule full.

**Highlights:** Unified messaging platform, Automated scheduling and reminders, Webchat integration, Google Business & Social Media integration, Review generator, Marketing automation

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

**In-app purchases:** none


## Frequently asked questions

### Is Calcularium free?

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

### Is amplifyCRM Pro free?

amplifyCRM Pro is free to download, with no in-app purchases.

### Which has better reviews, Calcularium or amplifyCRM Pro?

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

### Do Calcularium or amplifyCRM Pro have ads?

Calcularium shows ads; amplifyCRM Pro does not.

### Which is updated more often, Calcularium or amplifyCRM Pro?

Calcularium ships an update fortnightly, and amplifyCRM Pro every 2 months. Most recently, Calcularium was updated on November 6, 2026 and amplifyCRM Pro on November 3, 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.*