# DiamondMaster vs CARATRATE

The clearest difference is rating: CARATRATE at 5.0 against DiamondMaster's 4.0. CARATRATE also leads on in-app purchases (none vs 4) and review sentiment (100% vs 75%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. DiamondMaster sells 4 in-app purchases, starting at $6.99 per 7 days. CARATRATE asks for nothing beyond the download.

CARATRATE holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 5 and 3 respectively. Written reviews point the same way: 75% of DiamondMaster's written reviews are positive against 100% of CARATRATE's.

DiamondMaster ships an update every 5 weeks, CARATRATE every 2 months. The most recent releases landed on September 19, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | DiamondMaster | CARATRATE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (5 ratings)](https://appshunter.io/ios/app/diamondmaster/id447221419/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/caratrate/id1409714486/reviews)** |
| Number of ratings | **5** | 3 |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 31 MB |
| Requires iOS | **11.0** | 12.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wayne Prentice](https://appshunter.io/developer/447221422) | [Dia Analytics LLP](https://appshunter.io/developer/1409714485) |

## What reviewers say

### DiamondMaster

[App page](https://appshunter.io/ios/app/diamondmaster/id447221419)

This app provides wholesale diamond pricing and market analysis for professionals. It compares mined and lab-grown diamonds across multiple grading systems and currencies, offering insights into value appreciation and depreciation.

**Highlights:** Compares mined and lab-grown diamonds, Wholesale value comparisons, 13 mediums of exchange and 8 C's, 4 grading systems displayed simultaneously, Dimension guidelines for shapes and carat weights, Tracks value appreciation/depreciation, Global price adjuster

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wholesale "Bright List" 1 wk. | $6.99 | per 7 days |
| Wholesale "Bright List" 1 mo. | $24.99 | per month |
| Wholesale "Bright List" 6 mo. | $109.99 | per 6 months |
| Wholesale "Bright List" 1 yr. | $199.99 | per year |


### CARATRATE

[App page](https://appshunter.io/ios/app/caratrate/id1409714486)

This app simplifies the complex valuation of natural diamonds. It provides users with pricing information to assist in buying or selling diamonds, aiming to make the process straightforward for even experienced traders.

**Highlights:** Diamond valuation, Diamond pricing, Natural diamond focus, Buying/selling assistance, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DiamondMaster free?

DiamondMaster is free to download, with in-app purchases available.

### Is CARATRATE free?

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

### Which has better reviews, DiamondMaster or CARATRATE?

CARATRATE is rated higher. DiamondMaster averages 4.0 out of 5 from 5 ratings, while CARATRATE averages 5.0 from 3 ratings.

### Do DiamondMaster or CARATRATE have ads?

Neither DiamondMaster nor CARATRATE shows ads.

### Which is updated more often, DiamondMaster or CARATRATE?

DiamondMaster ships an update every 5 weeks, and CARATRATE every 2 months. Most recently, DiamondMaster was updated on September 19, 2026 and CARATRATE on June 4, 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.*