# Diam Calc Lite vs DiamondEyePro

The clearest difference is update cadence: Diam Calc Lite at every 2 weeks against DiamondEyePro's every 4 months. Diam Calc Lite also leads on iOS requirement (12.0 vs 15.6). DiamondEyePro's advantage is review sentiment (100% vs 83%). On price, rating, ratings volume and ads 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 — 3.0 for Diam Calc Lite against 3.0 for DiamondEyePro. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 83% of Diam Calc Lite's written reviews are positive against 100% of DiamondEyePro's.

Diam Calc Lite ships an update every 2 weeks, DiamondEyePro every 4 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Diam Calc Lite | DiamondEyePro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/diam-calc-lite/id1141205379/reviews) | [3.0 (2 ratings)](https://appshunter.io/ios/app/diamondeyepro/id6479329165/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 83.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 24 MB | 71 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Perfect Creative Studio](https://appshunter.io/developer/1141205378) | [GemEx Systems](https://appshunter.io/developer/569632303) |

## What reviewers say

### Diam Calc Lite

[App page](https://appshunter.io/ios/app/diam-calc-lite/id1141205379)

Calculate the approximate weight of polished and certified diamonds using their dimensions. This tool is designed for professionals in the diamond industry to estimate carat weight and assist with recutting estimations.

**Highlights:** Diamond weight calculation, Recut estimation, Supports multiple fancy shapes, Calculates based on diameter and height, Free version available

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

**In-app purchases:** none


### DiamondEyePro

[App page](https://appshunter.io/ios/app/diamondeyepro/id6479329165)

This app helps diamond dealers quickly identify and verify diamonds. It allows registration of diamonds and subsequent scanning to confirm authenticity. It can also check the condition of prongs on mounted diamonds.

**Highlights:** Diamond registration, Diamond scanning and verification, Prong condition check, Dealer-focused tool

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Diam Calc Lite free?

Diam Calc Lite is free to download, with no in-app purchases.

### Is DiamondEyePro free?

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

### Which has better reviews, Diam Calc Lite or DiamondEyePro?

Diam Calc Lite and DiamondEyePro are both rated 3.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Diam Calc Lite or DiamondEyePro have ads?

Neither Diam Calc Lite nor DiamondEyePro shows ads.

### Which is updated more often, Diam Calc Lite or DiamondEyePro?

Diam Calc Lite ships an update every 2 weeks, and DiamondEyePro every 4 months. Most recently, Diam Calc Lite was updated on November 2, 2026 and DiamondEyePro on November 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.*