# CALC Smart Calculator ± vs Numerical³

The clearest difference is in-app purchases: Numerical³ at none against CALC Smart Calculator ±'s 4. CALC Smart Calculator ±'s advantage is review sentiment (87% vs 75%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. Numerical³ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for CALC Smart Calculator ± against 4.8 for Numerical³. Both are backed by a comparable volume of ratings — 2.4K and 1.3K respectively. Written reviews are what separate them: 87% of CALC Smart Calculator ±'s written reviews are positive against 75% of Numerical³'s.

CALC Smart Calculator ± ships an update fortnightly, Numerical³ every 2 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CALC Smart Calculator ± | Numerical³ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (2.4K ratings)](https://appshunter.io/ios/app/calc-smart-calculator/id576675190/reviews) | [4.8 (1.3K ratings)](https://appshunter.io/ios/app/numerical/id804548449/reviews) |
| Number of ratings | **2.4K** | 1.3K |
| Positive reviews | **87.3% of reviews** | 74.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 16 MB | 175 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [QApps LLC](https://appshunter.io/developer/395652397) | [Andrew J Clark](https://appshunter.io/developer/804548452) |

## What reviewers say

### CALC Smart Calculator ±

[App page](https://appshunter.io/ios/app/calc-smart-calculator/id576675190)

This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.

**Highlights:** Real-time results, Unit and currency conversions, Custom functions and constants, Shareable calculation history, Landscape mode with tape-roll, Gratuity calculator

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Quarterly Supporter | $0.99 | per 3 months |
| Quarterly Supporter | $1.99 | per 3 months |
| Annual Contributor | $2.99 | per year |
| Annual Contributor | $5.99 | per year |

**What reviewers like**

- 💻 Excellent calculator functionality
- 🎨 Beautiful and clean interface
- 🔢 Displays full calculation history
- 🔍 Useful conversion tools
- 🤖 Seamless Apple Watch integration

**What reviewers complain about**

- 💰 Subscription model introduced
- 🔒 Restricted features behind paywall
- 📊 Calculation bugs and inaccuracies
- 🔄 Unnecessary UI changes frustrate users

**Reported bugs**

- Calculation errors in certain scenarios
- Forced tutorial popup on every launch
- Unreliable widget functionality

**Requested features**

- Ability to easily clear calculation history
- Option to customize button layout
- Support for entering hexadecimal numbers
- Integration with other apps and services


### Numerical³

[App page](https://appshunter.io/ios/app/numerical/id804548449)

A powerful and beautifully designed calculator app that offers advanced scientific functions, automatic bracket handling, and a unique no-equals button interface. It integrates seamlessly with iOS features like widgets and keyboards for calculations anywhere.

**Highlights:** No equals button interface, Automatic bracket handling, Full scientific keypad, Today Widget integration, Numerical² Keyboard for any app, Equation editing, Customizable themes

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app
- 👍 Simple and intuitive
- 👍 Clean and beautiful design
- 🚀 Fast and responsive
- 👍 Customizable themes

**What reviewers complain about**

- 🐛 Bugs and glitches (unresponsive keys, calculation errors)
- 🔍 Lack of advanced functions (scientific, unit conversion)
- 💡 Needs more theme options
- 💡 Needs iPad support
- 💡 Needs widget support

**Reported bugs**

- Unresponsive keys
- Calculation errors
- Crashes on startup

**Requested features**

- Add scientific functions (square root, trigonometry, etc.)
- Implement an equals button
- Add more theme options
- Develop an iPad version
- Bring back widget support


## Frequently asked questions

### Is CALC Smart Calculator ± free?

CALC Smart Calculator ± is free to download, with in-app purchases available.

### Is Numerical³ free?

Numerical³ is free to download, with no in-app purchases.

### Which has better reviews, CALC Smart Calculator ± or Numerical³?

CALC Smart Calculator ± and Numerical³ are both rated 4.8 out of 5 on the App Store, from 2.4K and 1.3K ratings respectively.

### Do CALC Smart Calculator ± or Numerical³ have ads?

Neither CALC Smart Calculator ± nor Numerical³ shows ads.

### Which is updated more often, CALC Smart Calculator ± or Numerical³?

CALC Smart Calculator ± ships an update fortnightly, and Numerical³ every 2 weeks. Most recently, CALC Smart Calculator ± was updated on October 15, 2026 and Numerical³ on October 14, 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.*