# Ring Sizing vs Whois Master

The clearest difference is price: Ring Sizing at Free against Whois Master's $0.59. Whois Master's advantage is update cadence (every 2 weeks vs every 10 months) and iOS requirement (15.6 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

Ring Sizing is free to download; Whois Master costs $0.59 up front. Neither carries in-app purchases, so what you see is what you pay.

Ring Sizing ships an update every 10 months, Whois Master every 2 weeks. The most recent releases landed on August 17, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Ring Sizing | Whois Master |
| --- | --- | --- |
| Price | **Free** | $0.59 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/ring-sizing/id1466446037/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 weeks** |
| Monetization | **Free** | Paid |
| Size | 10 MB | 4 MB |
| Requires iOS | 26.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gerhard Lentschik](https://appshunter.io/developer/629988041) | [Emre Keles](https://appshunter.io/developer/1780421225) |

## What reviewers say

### Ring Sizing

[App page](https://appshunter.io/ios/app/ring-sizing/id1466446037)

Accurately measure ring sizes using your phone's screen. Determine diameter, circumference, and convert between international sizing systems. Ideal for jewelers and shoppers needing precise measurements.

**Highlights:** Measure ring diameter on screen, Determine circumference in mm/inches, Pacher method calculation, International size conversion (EU, US, UK, JP), Precise slider for measurement

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

**In-app purchases:** none


### Whois Master

[App page](https://appshunter.io/ios/app/whois-master/id6738364976)

This utility app allows users to perform comprehensive web lookups. It provides access to domain information, DNS records, SSL certificate details, and IP address tracking. It's designed to be a fast, reliable, and user-friendly tool for exploring essential web data.

**Highlights:** Domain lookups, DNS record access, SSL certificate details, IP address tracking, User-friendly interface

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Ring Sizing free?

Ring Sizing is free to download, with no in-app purchases.

### Is Whois Master free?

Whois Master costs $0.59, with no in-app purchases.

### Do Ring Sizing or Whois Master have ads?

Neither Ring Sizing nor Whois Master shows ads.

### Which is updated more often, Ring Sizing or Whois Master?

Ring Sizing ships an update every 10 months, and Whois Master every 2 weeks. Most recently, Ring Sizing was updated on August 17, 2026 and Whois Master on September 19, 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.*