# Rangen vs OSIRIS Deltion College

The clearest difference is in-app purchases: OSIRIS Deltion College at none against Rangen's 1. OSIRIS Deltion College also leads on iOS requirement (11.0 vs 16.4). Rangen's advantage is update cadence (every 6 weeks vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Rangen sells 1 one-off in-app purchase. OSIRIS Deltion College asks for nothing beyond the download.

Rangen ships an update every 6 weeks, OSIRIS Deltion College every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Rangen | OSIRIS Deltion College |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 122 MB | 34 MB |
| Requires iOS | 16.4 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jelle van Haaster](https://appshunter.io/developer/967400632) | [CACI bv](https://appshunter.io/developer/961337312) |

## What reviewers say

### Rangen

[App page](https://appshunter.io/ios/app/rangen/id983027165)

Test your knowledge about military headwear, shoulder insignia, and chest decorations. Discover the meanings behind these symbols and expand your understanding of military attire. This educational app makes learning about uniforms engaging and informative.

**Highlights:** Learn about military headwear, Understand shoulder insignia, Discover chest decoration meanings, Test your knowledge, Engaging educational content

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Volledige versie | $0.99 | one-time |


### OSIRIS Deltion College

[App page](https://appshunter.io/ios/app/osiris-deltion-college/id6497794124)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rangen free?

Rangen is free to download, with in-app purchases available.

### Is OSIRIS Deltion College free?

OSIRIS Deltion College is free to download, with no in-app purchases.

### Do Rangen or OSIRIS Deltion College have ads?

Neither Rangen nor OSIRIS Deltion College shows ads.

### Which is updated more often, Rangen or OSIRIS Deltion College?

Rangen ships an update every 6 weeks, and OSIRIS Deltion College every 3 months. Most recently, Rangen was updated on October 24, 2026 and OSIRIS Deltion College on October 25, 2026.

---

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