# Diameter Finder vs DTR v2

The clearest difference is price: Diameter Finder at Free against DTR v2's $17.99. DTR v2's advantage is update cadence (monthly vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Diameter Finder is free to download; DTR v2 costs $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Diameter Finder ships an update every 5 months, DTR v2 monthly. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Diameter Finder | DTR v2 |
| --- | --- | --- |
| Price | **Free** | $17.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/diameter-finder-circle-calc/id6463205574/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free | — |
| Size | 13 MB | 57 MB |
| Requires iOS | **12.1** | 12.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krzysztof Gwiazda](https://appshunter.io/developer/1546740383) | [Superior Shooting System, LLC](https://appshunter.io/developer/1733021815) |

## 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


### DTR v2

[App page](https://appshunter.io/ios/app/dtr-v2/id6480346108)

**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 DTR v2 free?

DTR v2 costs $17.99, with no in-app purchases.

### Do Diameter Finder or DTR v2 have ads?

Neither Diameter Finder nor DTR v2 shows ads.

### Which is updated more often, Diameter Finder or DTR v2?

Diameter Finder ships an update every 5 months, and DTR v2 monthly. Most recently, Diameter Finder was updated on September 19, 2026 and DTR v2 on September 9, 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.*