# Sigma Mini vs GoldCalculator Pro

Sigma Mini and GoldCalculator Pro both sit at 5.0 stars, but that hides the real split: 100% of GoldCalculator Pro's written reviews are positive against 38% of Sigma Mini's. GoldCalculator Pro also leads on update cadence (every 4 days vs every 2 months). Sigma Mini's advantage is iOS requirement (11.0 vs 18.4). 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 — 5.0 for Sigma Mini against 5.0 for GoldCalculator Pro. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews are what separate them: 38% of Sigma Mini's written reviews are positive against 100% of GoldCalculator Pro's.

Sigma Mini ships an update every 2 months, GoldCalculator Pro every 4 days. The most recent releases landed on October 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sigma Mini | GoldCalculator Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/sigma-mini/id1548367153/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/goldcalculator-pro/id6746294725/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 6 MB | 13 MB |
| Requires iOS | **11.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Richard Bessette](https://appshunter.io/developer/1548367155) | [Alaa Shaban](https://appshunter.io/developer/1816087486) |

## What reviewers say

### Sigma Mini

[App page](https://appshunter.io/ios/app/sigma-mini/id1548367153)

This utility app connects to a specific hardware device for enhanced functionality. It allows users to interact with and control the connected device, providing a seamless experience for its intended purpose. The application is designed for users who own the associated hardware.

**Highlights:** Connects to Sigma Metalytics Mini, Device interaction and control, Enhanced functionality for users, Seamless user experience

**Features:** macOS Compatibility

**In-app purchases:** none


### GoldCalculator Pro

[App page](https://appshunter.io/ios/app/goldcalculator-pro/id6746294725)

This app instantly calculates the value of gold and silver using real-time market prices. It supports various karats and silver purities, allowing input in grams or pennyweight. Adjust buy/sell margins and refresh prices with a single tap.

**Highlights:** Live gold & silver prices, Supports multiple karats and silver purities, Input weight in grams or pennyweight, Adjustable buy/sell margin, One-tap spot price refresh, Dark Mode support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sigma Mini free?

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

### Is GoldCalculator Pro free?

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

### Which has better reviews, Sigma Mini or GoldCalculator Pro?

Sigma Mini and GoldCalculator Pro are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Sigma Mini or GoldCalculator Pro have ads?

Neither Sigma Mini nor GoldCalculator Pro shows ads.

### Which is updated more often, Sigma Mini or GoldCalculator Pro?

Sigma Mini ships an update every 2 months, and GoldCalculator Pro every 4 days. Most recently, Sigma Mini was updated on October 1, 2026 and GoldCalculator Pro on September 21, 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.*