# Square Root Pro vs 4 = 1

The clearest difference is ads: 4 = 1 at none against Square Root Pro's shown. 4 = 1 also leads on update cadence (monthly vs every 8 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Square Root Pro ships an update every 8 months, 4 = 1 monthly. The most recent releases landed on July 21, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Square Root Pro | 4 = 1 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/square-root-pro/id1621600446/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | Ad-supported | — |
| Size | 30 MB | 0 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Bradshaw](https://appshunter.io/developer/1360674639) | [Zoe Cutler](https://appshunter.io/developer/1616556209) |

## What reviewers say

### Square Root Pro

[App page](https://appshunter.io/ios/app/square-root-pro/id1621600446)

This app helps you mentally calculate square roots to two decimal places. It supports multiple languages and an internationalized numeric system for global users.

**Highlights:** Mental square root calculation, Accuracy to 2 decimal places, Multilingual support (English, Spanish, French, German, Chinese), Internationalized numeric system, Educational tool for math and science

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

**In-app purchases:** none


### 4 = 1

[App page](https://appshunter.io/ios/app/4-1-math-game/id6479671530)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Square Root Pro free?

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

### Is 4 = 1 free?

4 = 1 is free to download, with no in-app purchases.

### Do Square Root Pro or 4 = 1 have ads?

Square Root Pro shows ads; 4 = 1 does not.

### Which is updated more often, Square Root Pro or 4 = 1?

Square Root Pro ships an update every 8 months, and 4 = 1 monthly. Most recently, Square Root Pro was updated on July 21, 2026 and 4 = 1 on September 11, 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.*