# Jostens Ring Sizer

> Accurate ring size measurement app for any finger, with international conversion. (iPhone/iPad app by Radius Technologies.)

- Source: https://appshunter.io/ios/app/jostens-ring-sizer/id1628354518 (this page in markdown: same URL + `.md`)
- Developer: [Radius Technologies](https://appshunter.io/developer/1452970152)
- Category: Shopping
- Price: Free
- Rating: 1.00/5 from 8 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 10 MB
- Languages: English
- Released: 2022-07-27
- Data updated: 2026-07-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/jostens-ring-sizer/id1628354518/reviews.md

## What is Jostens Ring Sizer?

The ring size measuring app that gives you an accurate ring size for any finger in just a few clicks.

- Accuracy down to 1/8 sizes for any finger
- Works on any mobile device
- Easy conversion to international sizing

## Key features

- Accurate ring size measurement
- Measures down to 1/8 sizes
- Works on any finger
- International sizing conversion
- Easy to use

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/jostens-ring-sizer/id1628354518/reviews.md

### 1/5 — Doesn’t open

*2026-03-02*

Won’t work!

### 1/5 — Horrible

*2025-11-28*

Does not work. Try to open it & can’t because of an API call.

### 5/5 — Accurate

*2025-11-15*

This app works how it is supposed to. Other people must not know how to use it properly. It will definitely give an accurate measurement

### 1/5 — College Ring

*2025-02-25*

My mother spent $1500 for my college graduation ring and it came in way too small. I did the sizing on the app at least 20 times to make sure it was correct. DO NOT USE THIS APP- GET YOUR RING SIZE IN PERSON.

### 1/5 — 0 Stars- error code, “Unable to determine PPI”

*2025-01-02*

See title of review.

### 1/5 — Does Not Work on iPhone 16

*2024-11-22*

Very disappointed. I was hoping I could use this and it would work. Sadly that is not the case.

### 1/5 — annoying

*2024-11-15*

i have done my right ring finger 4 times and gotten 4.5 5.5 6.5 and 6.0 definitely not accurate despite following instructions every time it's practically useless just go to the mall and have them measure your finger great idea just doesn't work

### 1/5 — Can’t even open it

*2024-02-12*

Th app doesn’t work at all. I can’t even get it open or let me size my ring. I’m gonna just to a jeweler to custom make me a class ring and size my ring

### 1/5 — Still not iPhone 15 compatible

*2024-02-05*

Another user stated in October this app doesn't support iPhone 15. I figured it might be updated by now and didn't bother checking the update history. Nope, still not compatible. They should stop offering it on the website if they're not going to update it.

### 1/5 — Does not support iPhone 15!

*2023-10-29*

Downloaded to check my finger size, the information stated it supports it. I open the app and it says does not support, check back in a few days?!?  The app version is over a year old, how is it going to fix itself in a few days?  I’ll check back in a few days an update review. But ZERO stars!!!

## Frequently asked questions about Jostens Ring Sizer

### How accurate is Jostens Ring Sizer?

Jostens Ring Sizer provides accuracy down to 1/8 sizes, ensuring a precise fit for any finger. This level of detail helps users confidently select the correct ring size.

### What devices does Jostens Ring Sizer support?

Jostens Ring Sizer is designed to work on any mobile device, including iPhones and iPads. This broad compatibility ensures accessibility for a wide range of users.

### Can Jostens Ring Sizer convert to international ring sizes?

Yes, Jostens Ring Sizer offers easy conversion to international sizing standards. This feature is highly beneficial for users shopping for rings from different regions.

### How often is Jostens Ring Sizer updated?

The app was last updated on September 10, 2024, indicating ongoing support and potential improvements. Users can expect the app to be maintained with the latest version 1.2.1.

### What is the age rating for Jostens Ring Sizer?

Jostens Ring Sizer has an age rating of 4+, making it suitable for a very broad audience. This indicates no mature content is present within the application.

### Does Jostens Ring Sizer have ads?

No, Jostens Ring Sizer does not contain advertisements. Users can enjoy a seamless experience without any interruptions from ads.

### What do users like about Jostens Ring Sizer?

While specific user sentiment is not detailed, the app's core features focus on accuracy and ease of use for ring sizing. Users likely appreciate its straightforward functionality for determining precise measurements.

### Is Jostens Ring Sizer available for Android devices?

The provided data indicates support for iPhone and iPad. It is not explicitly stated if the app is available on Android devices.

## Version history (last 5 releases)

### 1.2.1 — 2024-09-10

General fixes and cleanup to keep everything running smoothly.

### 1.1.0 — 2024-05-17

This new version improves the measuring process and squashes a couple bugs.

### 1.0.3 — 2022-10-25

Added a new screen that helps show how to correctly measure your ring size.

### 1.0.2 — 2022-09-02

Updates to increase time on Close Eye screen.

### 1.0.1 — 2022-07-28

• Updated styling and video
• Added screen discussing next steps after ring size is measured

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## More apps by Radius Technologies

- [Herff Jones RightSize™](https://appshunter.io/ios/app/herff-jones-rightsize/id1461730450)
- [PerfectFit® Ring Sizer](https://appshunter.io/ios/app/perfectfit-ring-sizer/id1525643957)
- [The Ring Size App™ by Hitched](https://appshunter.io/ios/app/the-ring-size-app-by-hitched/id1544669181)
- [Manly Bander](https://appshunter.io/ios/app/manly-bander/id1547848482)
- [PerfectFit®](https://appshunter.io/ios/app/perfectfit/id1552811971)
- [Jewelry by Johan Ring Sizing](https://appshunter.io/ios/app/jewelry-by-johan-ring-sizing/id1596029778)

All apps by Radius Technologies: https://appshunter.io/developer/1452970152

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-21.*