# Gem Weight Estimator vs Caratify

The clearest difference is price: Gem Weight Estimator at Free against Caratify's $0.99. Gem Weight Estimator also leads on iOS requirement (9.0 vs 15.1). On ads, in-app purchases and device support there is nothing between them.

Gem Weight Estimator is free to download; Caratify costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Gem Weight Estimator | Caratify |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/gem-weight-estimator/id941035288/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | — |
| Monetization | **Free** | Paid |
| Size | 17 MB | 37 MB |
| Requires iOS | **9.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kennedy Ho](https://appshunter.io/developer/927311625) | [Nikita Aurelian Schulz](https://appshunter.io/developer/1858916652) |

## What reviewers say

### Gem Weight Estimator

[App page](https://appshunter.io/ios/app/gem-weight-estimator/id941035288)

Quickly estimate the weight of faceted gemstones using their cutting style and dimensions. Archive this information with photos for future reference.

**Highlights:** Estimate gem weight, Input cutting style and dimensions, Archive weight data, Include stone photographs, Supports various gem materials

**In-app purchases:** none


### Caratify

[App page](https://appshunter.io/ios/app/caratify/id6759229290)

This app offers precise offline tools for goldsmiths and jewelers to calculate material properties, prepare for casting, and manage their precious metal collections. It includes features for density testing, wax-to-metal conversion, purity analysis, and inventory management.

**Highlights:** Density & Specific Gravity Testing, Wax-to-Metal Casting Calculator, Purity & Proportion Analysis, Jewelry Inventory Management, Precision Unit Conversion, Ring Sizing Tools, Offline Functionality

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

**In-app purchases:** none


## Frequently asked questions

### Is Gem Weight Estimator free?

Gem Weight Estimator is free to download, with no in-app purchases.

### Is Caratify free?

Caratify costs $0.99, with no in-app purchases.

### Do Gem Weight Estimator or Caratify have ads?

Neither Gem Weight Estimator nor Caratify shows ads.

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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.*