# Fast Equation Plus vs Square Root Calculator SDG

The clearest difference is price: Square Root Calculator SDG at Free against Fast Equation Plus's $0.99. Square Root Calculator SDG also leads on iOS requirement (11.0 vs 15.6). Fast Equation Plus's advantage is ads (none vs shown) and update cadence (every 6 months vs every 12 months). On in-app purchases there is nothing between them.

Square Root Calculator SDG is free to download; Fast Equation Plus costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Fast Equation Plus ships an update every 6 months, Square Root Calculator SDG every 12 months. The most recent releases landed on September 10, 2026 and July 20, 2026 respectively.

## The numbers

| Metric | Fast Equation Plus | Square Root Calculator SDG |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.8 (4 ratings)](https://appshunter.io/ios/app/square-root-calculator-sdg/id6741165200/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 12 months |
| Monetization | — | Ad-supported |
| Size | 3 MB | 12 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [a Rausa](https://appshunter.io/developer/638439637) | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) |

## What reviewers say

### Fast Equation Plus

[App page](https://appshunter.io/ios/app/fast-equation-plus/id887161077)

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

**In-app purchases:** none


### Square Root Calculator SDG

[App page](https://appshunter.io/ios/app/square-root-calculator-sdg/id6741165200)

This utility app provides a straightforward way to calculate the square root of any number. Its simple interface makes it easy to use for quick calculations.

**Highlights:** Calculate square roots, Easy to use interface, Quick calculations, Supports all numbers

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Fast Equation Plus free?

Fast Equation Plus costs $0.99, with no in-app purchases.

### Is Square Root Calculator SDG free?

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

### Do Fast Equation Plus or Square Root Calculator SDG have ads?

Square Root Calculator SDG shows ads; Fast Equation Plus does not.

### Which is updated more often, Fast Equation Plus or Square Root Calculator SDG?

Fast Equation Plus ships an update every 6 months, and Square Root Calculator SDG every 12 months. Most recently, Fast Equation Plus was updated on September 10, 2026 and Square Root Calculator SDG on July 20, 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.*