check vs Columbus Eye
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
check
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Der basic-check ist eine berufsneutrale Eignungsabklärung, die das persönliche Fähigkeitsprofil angehender Lernender aufzeigt. Der schweizweit einheitliche Eignungstest prüf die Kenntnisse und Fähigkeiten der Schülerinnen und Schüler nach Abschluss der 8. Klasse.
Columbus Eye
Explore Earth's features like volcanoes and cities in 3D using augmented reality. This educational app uses real satellite data and printable worksheets to bring scientific content to life for learning at home or in the classroom.
- Marker-based Augmented Reality
- High-quality satellite imagery
- Interactive learning modules
- Based on real satellite data
- Works with printable worksheets
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Explore the Earth in Augmented Reality – with Columbus Eye! Columbus Eye brings stunning satellite imagery and scientific content straight to your smartphone – letting you discover our planet through marker-based Augmented Reality (AR). Perfect for use in classrooms, at home, or simply out of curiosity. What you’ll find: • Marker-based Augmented Reality – Bring satellite images to life • High-quality satellite imagery – Explore volcanoes, cities, oceans, and more • Interactive learning modules – Understand how Earth observation works • Based on real satellite data – Scientifically sound and educational • Made for education – Works with free printable worksheets How it works: Print the matching markers from the official worksheets at https://esero.de/unterricht/arapps or https://columbuseye.rub.de/english.html, open the app – and watch satellite images come to life in 3D! A DLR educational project Columbus Eye was developed as part of an educational initiative by the German Aerospace Center (DLR). It combines real Earth observation data with engaging, curriculum-aligned content for schools and curious minds alike. Discover Earth from space – right on your smartphone.
Screenshots
Verdict
The clearest difference is update cadence: check at every 9 days against Columbus Eye's every 2 months. check also leads on iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
check ships an update every 9 days, Columbus Eye every 2 months. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.
| Parameter | check | Columbus Eye |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| Update frequency | Every 9 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 213 MB |
| Age rating | 4+ | 4+ |
| Developer | Smart Bits GmbH | Ruhr-Universitaet Bochum |
In-app purchases
check
No in-app purchases
Columbus Eye
No in-app purchases
Questions
Is check free?
Is Columbus Eye free?
Do check or Columbus Eye have ads?
Which is updated more often, check or Columbus Eye?
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