# Numerical³ vs iSPL PRO+

The clearest difference is in-app purchases: Numerical³ at none against iSPL PRO+'s 1. Numerical³ also leads on device support (3 vs 1) and iOS requirement (18.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. iSPL PRO+ sells 1 one-off in-app purchase. Numerical³ asks for nothing beyond the download.

## The numbers

| Metric | Numerical³ | iSPL PRO+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (1.3K ratings)](https://appshunter.io/ios/app/numerical/id804548449/reviews)** | — |
| Number of ratings | **1.3K** | — |
| Positive reviews | 74.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Monetization | Paid | — |
| Size | 175 MB | 23 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrew J Clark](https://appshunter.io/developer/804548452) | [Colours Lab](https://appshunter.io/developer/528274160) |

## 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

**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


### iSPL PRO+

[App page](https://appshunter.io/ios/app/ispl-pro-plus/id6762527669)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $4.99 | one-time |


## Frequently asked questions

### Is Numerical³ free?

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

### Is iSPL PRO+ free?

iSPL PRO+ is free to download, with in-app purchases available.

### Do Numerical³ or iSPL PRO+ have ads?

Neither Numerical³ nor iSPL PRO+ shows ads.

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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.*