# Diam Calc Lite vs GemGuide Pricing

The clearest difference is review sentiment: Diam Calc Lite at 83% against GemGuide Pricing's 40%. Diam Calc Lite also leads on monetization model (free vs subscription) and update cadence (every 2 weeks vs every 69 months). GemGuide Pricing's advantage is rating (3.3 vs 3.0) and ratings volume (6 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

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

GemGuide Pricing holds the better App Store score, 3.3 against 3.0. That said, the two scores are not equally well evidenced: GemGuide Pricing has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 83% of Diam Calc Lite's written reviews are positive against 40% of GemGuide Pricing's, so the app with the better star average is not the one people write more warmly about.

Diam Calc Lite ships an update every 2 weeks, GemGuide Pricing every 69 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Diam Calc Lite | GemGuide Pricing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/diam-calc-lite/id1141205379/reviews) | **[3.3 (6 ratings)](https://appshunter.io/ios/app/gemguide-pricing/id1206021506/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | **83.3% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 69 months |
| Monetization | **Free** | Subscription |
| Size | 24 MB | 9 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The Perfect Creative Studio](https://appshunter.io/developer/1141205378) | [Gemworld International, Inc.](https://appshunter.io/developer/1206021505) |

## 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


### GemGuide Pricing

[App page](https://appshunter.io/ios/app/gemguide-pricing/id1206021506)

This app provides an independent, market-driven benchmark for wholesale pricing of gems and jewelry. Users can view individual stone prices in wholesale or retail and adjust markups. A subscription is required for full functionality.

**Highlights:** Wholesale gem pricing, Retail gem pricing, Individual stone price view, Markup control, Market-driven benchmark

**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 GemGuide Pricing free?

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

### Which has better reviews, Diam Calc Lite or GemGuide Pricing?

GemGuide Pricing is rated higher. Diam Calc Lite averages 3.0 out of 5 from 1 ratings, while GemGuide Pricing averages 3.3 from 6 ratings.

### Do Diam Calc Lite or GemGuide Pricing have ads?

Neither Diam Calc Lite nor GemGuide Pricing shows ads.

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

Diam Calc Lite ships an update every 2 weeks, and GemGuide Pricing every 69 months. Most recently, Diam Calc Lite was updated on October 24, 2026 and GemGuide Pricing on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*