# Metalynx vs Stack Heavy

The clearest difference is update cadence: Stack Heavy at weekly against Metalynx's every 20 months. On price, rating, review sentiment and ratings volume 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 — 4.9 for Metalynx against 5.0 for Stack Heavy. Both are backed by a comparable volume of ratings — 8 and 12 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Metalynx ships an update every 20 months, Stack Heavy weekly. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Metalynx | Stack Heavy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (8 ratings)](https://appshunter.io/ios/app/metalynx/id613591018/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/stack-heavy/id6771520255/reviews)** |
| Number of ratings | 8 | **12** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Weekly** |
| Monetization | Free | Free |
| Size | 41 MB | 10 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kitco Metals Inc](https://appshunter.io/developer/298687561) | [Silver Seeker](https://appshunter.io/developer/6771520527) |

## What reviewers say

### Metalynx

[App page](https://appshunter.io/ios/app/metalynx/id613591018)

This app helps precious metal professionals instantly calculate dimensions and weights for gold, silver, and platinum items. It supports multiple purity levels, units of measurement, and provides live market prices and charts.

**Highlights:** Automatic dimensional calculations for precious metals, Supports multiple purity levels for gold, silver, platinum, Customizable units for weight and dimensions, Live market prices and London Fix data, Technical and historical charts, Multi-language support (English, French)

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

**In-app purchases:** none


### Stack Heavy

[App page](https://appshunter.io/ios/app/stack-heavy/id6771520255)

This finance app provides real-time precious metal prices and dealer premium tracking. It offers tools to calculate melt values and premiums, helping users find the best deals on bullion and coins. No account or subscriptions are needed.

**Highlights:** Live spot prices for precious metals, Dealer premium tracking, Melt value calculator, Premium calculator with shipping/fees, Automatic updates, No account required

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

**In-app purchases:** none


## Frequently asked questions

### Is Metalynx free?

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

### Is Stack Heavy free?

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

### Which has better reviews, Metalynx or Stack Heavy?

Stack Heavy is rated higher. Metalynx averages 4.9 out of 5 from 8 ratings, while Stack Heavy averages 5.0 from 12 ratings.

### Do Metalynx or Stack Heavy have ads?

Neither Metalynx nor Stack Heavy shows ads.

### Which is updated more often, Metalynx or Stack Heavy?

Metalynx ships an update every 20 months, and Stack Heavy weekly. Most recently, Metalynx was updated on September 24, 2026 and Stack Heavy on September 20, 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.*