# Quadratic Formula Calculator vs Square Root Calculator SDG

The clearest difference is in-app purchases: Square Root Calculator SDG at none against Quadratic Formula Calculator's 1. Square Root Calculator SDG also leads on review sentiment (100% vs 75%) and iOS requirement (11.0 vs 15.0). Quadratic Formula Calculator's advantage is ratings volume (71 vs 7). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Quadratic Formula Calculator sells 1 one-off in-app purchase. Square Root Calculator SDG asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for Quadratic Formula Calculator against 4.7 for Square Root Calculator SDG. That said, the two scores are not equally well evidenced: Quadratic Formula Calculator has 71 ratings behind it against 7, so its average is the more settled of the two. Written reviews are what separate them: 75% of Quadratic Formula Calculator's written reviews are positive against 100% of Square Root Calculator SDG's.

Quadratic Formula Calculator ships an update every 9 months, Square Root Calculator SDG every 12 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Quadratic Formula Calculator | Square Root Calculator SDG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (71 ratings)](https://appshunter.io/ios/app/quadratic-formula-calculator/id1425311468/reviews) | **[4.7 (7 ratings)](https://appshunter.io/ios/app/square-root-calculator-sdg/id6741165200/reviews)** |
| Number of ratings | **71** | 7 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 9 months** | Every 12 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 3 MB | 12 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Edward Prokopik](https://appshunter.io/developer/1077587110) | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) |

## What reviewers say

### Quadratic Formula Calculator

[App page](https://appshunter.io/ios/app/quadratic-formula-calculator/id1425311468)

This app simplifies solving quadratic equations by allowing users to input coefficients a, b, and c. It quickly displays the solutions for x, including support for imaginary numbers. Users can also switch between light and dark themes for a personalized experience.

**Highlights:** Input coefficients a, b, and c, Displays solutions for x, Supports imaginary number solutions, Light and Dark modes

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $1.99 | one-time |


### 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 Quadratic Formula Calculator free?

Quadratic Formula Calculator is free to download, with in-app purchases available.

### Is Square Root Calculator SDG free?

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

### Which has better reviews, Quadratic Formula Calculator or Square Root Calculator SDG?

Square Root Calculator SDG is rated higher. Quadratic Formula Calculator averages 4.7 out of 5 from 71 ratings, while Square Root Calculator SDG averages 4.7 from 7 ratings.

### Do Quadratic Formula Calculator or Square Root Calculator SDG have ads?

Both Quadratic Formula Calculator and Square Root Calculator SDG show ads.

### Which is updated more often, Quadratic Formula Calculator or Square Root Calculator SDG?

Quadratic Formula Calculator ships an update every 9 months, and Square Root Calculator SDG every 12 months. Most recently, Quadratic Formula Calculator was updated on October 24, 2026 and Square Root Calculator SDG on October 24, 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.*