# Numerical³ vs Grandma Calculator

The clearest difference is monetization model: Grandma Calculator at free against Numerical³'s paid. Grandma Calculator also leads on review sentiment (89% vs 75%). Numerical³'s advantage is ratings volume (1.3K vs 97) and device support (3 vs 1). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Numerical³ holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: Numerical³ has 1.3K ratings behind it against 97, so its average is the more settled of the two. Written reviews complicate that: 75% of Numerical³'s written reviews are positive against 89% of Grandma Calculator's, so the app with the better star average is not the one people write more warmly about.

Numerical³ ships an update every 2 weeks, Grandma Calculator weekly. The most recent releases landed on November 9, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Numerical³ | Grandma Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.3K ratings)](https://appshunter.io/ios/app/numerical/id804548449/reviews)** | [4.6 (97 ratings)](https://appshunter.io/ios/app/grandma-calculator/id1546631829/reviews) |
| Number of ratings | **1.3K** | 97 |
| Positive reviews | 75.0% of reviews | **88.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Paid | **Free** |
| Size | 207 MB | 1 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Andrew J Clark](https://appshunter.io/developer/804548452) | [Julien Eyriès](https://appshunter.io/developer/414653864) |

## What reviewers say

### 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, iPhone Duo 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


### Grandma Calculator

[App page](https://appshunter.io/ios/app/grandma-calculator/id1546631829)

This is a straightforward, classic calculator application. It offers a clean interface with no advertisements or in-app purchases to interrupt your calculations.

**Highlights:** Classic calculator interface, Free to use, No advertisements, No in-app purchases, No user tracking

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🚫 No ads
- 🆓 Free to use
- 👀 Clear and large display
- 🔢 Shows running list of entries

**What reviewers complain about**

- ❌ No backspace/clear button
- 👵 Grandma icon is distracting (for some)
- 🔄 Opens in landscape mode
- ↔️ Hard to close and get back to previous page
- 👴🏻 Wish for skin tone options for grandma icon

**Reported bugs**

- Mistakes require starting over due to no backspace
- Clearing all entries when trying to correct a mistake

**Requested features**

- Add a backspace/clear button
- Allow copying total to another app
- Offer an iPhone version
- Option to donate to the developer
- Change skin tone of grandma icon


## Frequently asked questions

### Is Numerical³ free?

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

### Is Grandma Calculator free?

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

### Which has better reviews, Numerical³ or Grandma Calculator?

Numerical³ is rated higher. Numerical³ averages 4.8 out of 5 from 1.3K ratings, while Grandma Calculator averages 4.6 from 97 ratings.

### Do Numerical³ or Grandma Calculator have ads?

Neither Numerical³ nor Grandma Calculator shows ads.

### Which is updated more often, Numerical³ or Grandma Calculator?

Numerical³ ships an update every 2 weeks, and Grandma Calculator weekly. Most recently, Numerical³ was updated on November 9, 2026 and Grandma Calculator 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.*