# Diameter Finder vs Square Root Calculator SDG

The clearest difference is ads: Diameter Finder at none against Square Root Calculator SDG's shown. Diameter Finder also leads on rating (5.0 vs 4.7) and update cadence (every 5 months vs every 12 months). Square Root Calculator SDG's advantage is ratings volume (7 vs 1). On price, review sentiment, in-app purchases and device support there is nothing between them.

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

Diameter Finder holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Square Root Calculator SDG has 7 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Diameter Finder ships an update every 5 months, Square Root Calculator SDG every 12 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Diameter Finder | Square Root Calculator SDG |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/diameter-finder-circle-calc/id6463205574/reviews)** | [4.7 (7 ratings)](https://appshunter.io/ios/app/square-root-calculator-sdg/id6741165200/reviews) |
| Number of ratings | 1 | **7** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 months** | Every 12 months |
| Monetization | **Free** | Ad-supported |
| Size | 13 MB | 12 MB |
| Requires iOS | 12.1 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) | [SDG CODE DOO NIS](https://appshunter.io/developer/1343251532) |

## What reviewers say

### Diameter Finder

[App page](https://appshunter.io/ios/app/diameter-finder-circle-calc/id6463205574)

This utility app provides a straightforward way to calculate circle properties. Simply input one known value (radius, diameter, circumference, or area) to instantly get the results for the others. It's designed for quick and no-fuss calculations.

**Highlights:** Calculate radius, Calculate diameter, Calculate circumference, Calculate area, Input any single value, Quick results

**Features:** macOS Compatibility, 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 Diameter Finder free?

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

### Is Square Root Calculator SDG free?

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

### Which has better reviews, Diameter Finder or Square Root Calculator SDG?

Diameter Finder is rated higher. Diameter Finder averages 5.0 out of 5 from 1 ratings, while Square Root Calculator SDG averages 4.7 from 7 ratings.

### Do Diameter Finder or Square Root Calculator SDG have ads?

Square Root Calculator SDG shows ads; Diameter Finder does not.

### Which is updated more often, Diameter Finder or Square Root Calculator SDG?

Diameter Finder ships an update every 5 months, and Square Root Calculator SDG every 12 months. Most recently, Diameter Finder 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.*