Comparison

Rangen vs Sdu e

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

Head to head

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

Sdu e

Features

Read full description

Je studieboeken altijd en overal bij de hand met de Sdu E-line app

Screenshots

Rangen4 screens

Sdu e3 screens

Verdict

The call

The clearest difference is in-app purchases: Sdu e at none against Rangen's 1. Sdu e also leads on iOS requirement (12.0 vs 16.4). On price, update cadence, 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. Sdu e asks for nothing beyond the download.

UpkeepUpdate frequency

Rangen ships an update every 3 months, Sdu e every 2 months. The most recent releases landed on September 24, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 6 level

Rangen versus Sdu e: the parameters behind the verdict, then further details
Parameter	Rangen	Sdu e
Price	Free	Free
Positive reviews	0.0% of reviews	—
Update frequency	Every 3 months	Every 2 months — better
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	12.0 — better
Further details — not scored
Size	126 MB	77 MB
Age rating	4+	4+
Developer	Jelle van Haaster	Lefebvre Sdu B.V.

In-app purchases

1 purchases

Rangen

One-time1

Volledige versie$0.99

None

Sdu e

No in-app purchases

Questions

Is Rangen free?

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

Is Sdu e free?

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

Do Rangen or Sdu e have ads?

Neither Rangen nor Sdu e shows ads.

Which is updated more often, Rangen or Sdu e?

Rangen ships an update every 3 months, and Sdu e every 2 months. Most recently, Rangen was updated on September 24, 2026 and Sdu e on October 11, 2026.