# Sigma vs Galaxy

The clearest difference is iOS requirement: Galaxy at 12.0 against Sigma's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Sigma ships an update monthly, Galaxy every 2 weeks. The most recent releases landed on October 10, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Sigma | Galaxy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/sigma/id1587396096/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 57 MB | 48 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 17+ |
| Developer | [Medhat Maged](https://appshunter.io/developer/1587396098) | [Moamen Rabee](https://appshunter.io/developer/1705689675) |

## What reviewers say

### Sigma

[App page](https://appshunter.io/ios/app/sigma/id1587396096)

This platform offers an accessible way to learn through educational content and assessment exams. It supports distance learning with features designed for easy understanding of curricula.

**Highlights:** Educational content delivery, Assessment exams, Curriculum display, Distance education support, Easy to understand

**Features:** Vision Pro support

**In-app purchases:** none


### Galaxy

[App page](https://appshunter.io/ios/app/galaxy/id6590630806)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sigma free?

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

### Is Galaxy free?

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

### Do Sigma or Galaxy have ads?

Neither Sigma nor Galaxy shows ads.

### Which is updated more often, Sigma or Galaxy?

Sigma ships an update monthly, and Galaxy every 2 weeks. Most recently, Sigma was updated on October 10, 2026 and Galaxy on September 29, 2026.

---

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