Comparison

Rangen vs ROC A12 OSIRIS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

ROC A12 OSIRIS student portal

Free

📚 Education

No ratingsView app →

About

Rangen

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

Read full description

Wat hebben die militairen toch op hun hoofd, schouders en borst? En wat betekent dat? Download de app en test je kennis.

About

ROC A12 OSIRIS

Features

Read full description

ROC A12 OSIRIS includes the following functionalities: results, study progress and messages.

Screenshots

Rangen4 screens

ROC A12 OSIRIS4 screens

Verdict

The call

The clearest difference is in-app purchases: ROC A12 OSIRIS at none against Rangen's 1. ROC A12 OSIRIS also leads on iOS requirement (11.0 vs 16.4). Rangen's advantage is update cadence (every 6 weeks vs every 7 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rangen sells 1 one-off in-app purchase. ROC A12 OSIRIS asks for nothing beyond the download.

UpkeepUpdate frequency

Rangen ships an update every 6 weeks, ROC A12 OSIRIS every 7 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 5 level

Rangen versus ROC A12 OSIRIS: the parameters behind the verdict, then further details
Parameter	Rangen	ROC A12 OSIRIS
Price	Free	Free
Positive reviews	0.0% of reviews	—
Update frequency	Every 6 weeks — better	Every 7 months
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Free with in-app purchases	—
Devices	iPhone, iPad	iPhone, iPad, iPod — better
Requires iOS	16.4	11.0 — better
Further details — not scored
Size	122 MB	34 MB
Age rating	4+	4+
Developer	Jelle van Haaster	CACI bv

In-app purchases

1 purchases

Rangen

One-time1

Volledige versie$0.99

None

ROC A12 OSIRIS

No in-app purchases

Questions

Is Rangen free?

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

Is ROC A12 OSIRIS free?

ROC A12 OSIRIS is free to download, with no in-app purchases.

Do Rangen or ROC A12 OSIRIS have ads?

Neither Rangen nor ROC A12 OSIRIS shows ads.

Which is updated more often, Rangen or ROC A12 OSIRIS?

Rangen ships an update every 6 weeks, and ROC A12 OSIRIS every 7 months. Most recently, Rangen was updated on October 24, 2026 and ROC A12 OSIRIS on October 25, 2026.