# Jeweler's Unit Converter Pro

> Converts jewelry-specific weight and mass units across devices. (iPhone/iPad app by HullBreach Studios Ltd..)

- Source: https://appshunter.io/ios/app/jewelers-unit-converter-pro/id626618467 (this page in markdown: same URL + `.md`)
- Developer: [HullBreach Studios Ltd.](https://appshunter.io/developer/603818003)
- Category: Utilities, Reference
- Price: $0.99
- Rating: 3.00/5 from 2 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.2 · 8 MB
- Languages: English
- Released: 2013-04-02
- Data updated: 2026-07-04
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/jewelers-unit-converter-pro/id626618467/reviews.md

## What is Jeweler's Unit Converter Pro?

Jewelers often need to convert between units for price calculations and appraisals, but some of the weight/mass units are esoteric to the industry and are not present in many calculation tools.

Jeweler's Unit Converter Pro meets that need by allowing quick conversions between the following units on the iPad, the iPhone, and the Apple Watch:

AVOIRDUPOIS (Imperial weight):
grain, dram, ounce, pound

METRIC:
microgram, milligram, gram, kilogram

TROY:
carat, pennyweight, ounce, pound

ANCIENT:
Roman drachma, Greek drachma, Israeli sheqel, Chinese tael

You can enter the calculations on an Apple Watch and display the results on a paired iPhone, using the iPhone as a second screen when working with sellers/buyers.

## Key features

- Converts between Avoirdupois, Metric, Troy, and Ancient units
- Supports grain, dram, ounce, pound, milligram, gram, kilogram, carat, pennyweight
- Includes ancient units like Roman drachma and Chinese tael
- Works on Apple Watch, iPhone, and iPad
- Apple Watch can input calculations, iPhone displays results
- iPhone acts as a second screen for client interactions

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/jewelers-unit-converter-pro/id626618467/reviews.md

### 1/5 — It's a laugh

*2015-03-10*

I thought that if you put a figure in the measured section, it would be the same in the converted section. How wrong I am. 25 grain is not 25 grain, but 25.003 grain.

**Developer response:** It was not possible to reply to reviews 3 years ago. Last year, the app was rebuild from the ground up, using better development tools that support calculation precision to 15 decimal places.  Upon testing the newest version of the app with your example and several sample values, the results are exactly as one would expect.

### 1/5 — Jeweler

*2014-05-17*

Needs work.

**Developer response:** This app has changed considerably in the past 4 years (when it was not yet possible to reply to reviews). It now has support for more unit types, extra precision to calculations, and even an Apple Watch version. If you have not tried a recent version of the app, I invite you to do so.

## Frequently asked questions about Jeweler's Unit Converter Pro

### What units does Jeweler's Unit Converter Pro support?

Jeweler's Unit Converter Pro supports a wide range of units including Avoirdupois (grain, dram, ounce, pound), Metric (microgram, milligram, gram, kilogram), Troy (carat, pennyweight, ounce, pound), and Ancient units (Roman drachma, Greek drachma, Israeli sheqel, Chinese tael).

### What devices is Jeweler's Unit Converter Pro available on?

Jeweler's Unit Converter Pro is available on the Apple Watch, iPhone, and iPad, allowing for versatile use across your Apple ecosystem.

### How does the Apple Watch integration work with Jeweler's Unit Converter Pro?

You can enter calculations directly on your Apple Watch and then display the results on a paired iPhone. The iPhone can function as a second screen, which is useful when working with clients.

### What is the price of Jeweler's Unit Converter Pro?

Jeweler's Unit Converter Pro is a paid application, priced at $0.99.

### How often is Jeweler's Unit Converter Pro updated?

The latest version, 2.6.0, was released on June 26, 2023. The app was originally released on April 2, 2013, indicating ongoing support and updates.

### What is the age rating for Jeweler's Unit Converter Pro?

Jeweler's Unit Converter Pro has an age rating of 4+, making it suitable for a wide range of users.

### Does Jeweler's Unit Converter Pro have ads?

No, Jeweler's Unit Converter Pro does not contain advertisements. It is a paid application without ads.

### What is the user rating for Jeweler's Unit Converter Pro?

Jeweler's Unit Converter Pro has a rating of 3.0 stars based on 2 user reviews.

## Version history (last 5 releases)

### 2.6.0 — 2023-06-26

* Minor interface adjustments
* Better compatibility with newer devices

### 2.5.0 — 2020-02-09

Support for dark mode

### 2.4.0 — 2018-10-28

* iPad support, including split-screen
* Apple Watch series 4 support

### 2.3.0 — 2018-04-05

* Transmit both values and units from Apple Watch to iPhone
* Transmit values from iPhone to Apple Watch
* Redesigned value entry screen on Apple Watch

### 2.1.7 — 2017-10-23

Interface tweaks

## Apps similar to Jeweler's Unit Converter Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Touchcode Visualizer](https://appshunter.io/ios/app/touchcode-visualizer/id1671880660) | — | Free | Utilities |
| [OSC/PILOT](https://appshunter.io/ios/app/oscpilot/id1616363234) | 5.0 (5) | Free | Utilities |
| [Snapmaker](https://appshunter.io/ios/app/snapmaker/id6670739251) | 2.8 (34) | Free | Utilities |
| [Water Temperature](https://appshunter.io/ios/app/water-temperature/id6477423920) | 4.3 (3) | $2.99 | Utilities |
| [TMote](https://appshunter.io/ios/app/tmote/id1606989131) | 5.0 (1) | Free | Utilities |
| [TouchRemote PRO](https://appshunter.io/ios/app/touchremote-pro/id6737225534) | — | Free | Utilities |

## More apps by HullBreach Studios Ltd.

- [Loot Flipping Lite](https://appshunter.io/ios/app/loot-flipping-lite/id603818000)
- [Loot Flipping Pro](https://appshunter.io/ios/app/loot-flipping-pro/id620226981)
- [SDK Spriter Stickers](https://appshunter.io/ios/app/sdk-spriter-stickers/id1155370729)
- [SDK Paint Viewer](https://appshunter.io/ios/app/sdk-paint-viewer/id1286573347)
- [SDK Paint Lite](https://appshunter.io/ios/app/sdk-paint-lite/id1394361380)

All apps by HullBreach Studios Ltd.: https://appshunter.io/developer/603818003

---

*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 2026-07-04.*