# CARATRATE vs UNI Diamonds

CARATRATE and UNI Diamonds both sit at 5.0 stars, but that hides the real split: 100% of CARATRATE's written reviews are positive against 67% of UNI Diamonds's. UNI Diamonds's advantage is update cadence (every 6 days vs every 3 months) and ratings volume (8 vs 2). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for CARATRATE against 5.0 for UNI Diamonds. Both are backed by a comparable volume of ratings — 2 and 8 respectively. Written reviews are what separate them: 100% of CARATRATE's written reviews are positive against 67% of UNI Diamonds's.

CARATRATE ships an update every 3 months, UNI Diamonds every 6 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | CARATRATE | UNI Diamonds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/caratrate/id1409714486/reviews) | [5.0 (8 ratings)](https://appshunter.io/ios/app/uni-diamonds/id1464519723/reviews) |
| Number of ratings | 2 | **8** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Free | Free |
| Size | 23 MB | 59 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dia Analytics LLP](https://appshunter.io/developer/1409714485) | [U.N.I Technologies LTD](https://appshunter.io/developer/1464519722) |

## What reviewers say

### 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, Vision Pro support

**In-app purchases:** none


### UNI Diamonds

[App page](https://appshunter.io/ios/app/uni-diamonds/id1464519723)

Access a live marketplace for over 2 million diamonds from hundreds of suppliers. Search by specific criteria, get competitive cash prices, and facilitate secure, insured delivery directly from your mobile device.

**Highlights:** Live diamond marketplace, 2 million+ stones available, 450+ trusted suppliers, Search by exact criteria, Competitive cash prices, Secure, insured delivery

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

**In-app purchases:** none


## Frequently asked questions

### Is CARATRATE free?

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

### Is UNI Diamonds free?

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

### Which has better reviews, CARATRATE or UNI Diamonds?

CARATRATE and UNI Diamonds are both rated 5.0 out of 5 on the App Store, from 2 and 8 ratings respectively.

### Do CARATRATE or UNI Diamonds have ads?

Neither CARATRATE nor UNI Diamonds shows ads.

### Which is updated more often, CARATRATE or UNI Diamonds?

CARATRATE ships an update every 3 months, and UNI Diamonds every 6 days. Most recently, CARATRATE was updated on October 29, 2026 and UNI Diamonds on October 29, 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.*