Open eClass Mobile vs Telekom Chronos
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Open eClass Mobile
Access your Open eClass courses and stay updated with the official mobile application. This app provides an alternative way to interact with your educational content, designed to complement the web experience.
- Access Open eClass courses
- Stay updated on course content
- Alternative to web-app access
- Requires active user account
- Works with enabled Open eClass sites
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Redesigned official Open eClass Mobile app! This application requires an active user account and works only with Open eClass sites that have enabled the mobile API. Please contact your Open eClass administrator if you encounter connection problems. It works best with Open eClass versions 4.4 or later This new mobile-app does not try to be everything that the web-app is but offers an alternative means for accessing courses and stay up-to-date. We’d really appreciate your feedback!
Telekom Chronos
Explore the Acropolis of Athens with immersive AR, VR, and AI. This free app offers digital reconstructions, interactive tours, and a virtual guide, accessible from anywhere in the world. Enhance your learning experience with cutting-edge technology.
- Augmented and virtual reality exploration
- AI-powered digital tour guide (Clio)
- 3D digital reconstructions of monuments
- Interactive audio tours
- Accessible globally, on-site or remotely
- 5G network optimization for avatar interaction
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The Telekom Chronos application is a one-of-a-kind free mobile application for smartphones and tablets designed for the archaeological site of the Acropolis of Athens. It combines the capabilities of augmented reality (AR), virtual reality (VR) and artificial intelligence (AI) technologies with the capabilities of the 5G network to make exploring the archaeological site and learning its history immersive, realistic and fun. The application can be downloaded and used by anyone, anywhere! On the rock of the Acropolis, at home, in the school yard, in the park, whether they are in Greece or anywhere else in the world. Digitalisation of culturally significant monuments demonstrates the benefits of technology, enhances digital inclusion and so we conduce to create a better world, for all! 1. What does the Telekom Chronos app offer? • Νavigation through scientifically documented, 3D digital representations of specific monuments on the rock of the Acropolis of Athens and selected exhibits/views from the Acropolis Museum. • Navigation whether you are on the rock of the Acropolis or anywhere else, at home, at school, in the park, anywhere in Greece or the rest of the world. • Self-guided or interactive audio tours. • Tour through a real-time Q&A conversation with Clio, the first-ever digital tour guide of an archaeological site. 2. Tips for best performance • Android device manufactured after 2018, with ARCore and Android OS version 10 or higher. Latest version is recommended. • iOS device manufactured after 2018, with ARKit and iOS version 11.0 or higher. Latest version is recommended. • Use of the avatar (virtual assistant) Clio requirement: 5G network connection with a speed of 200 Mbps and a maximum ping rate (latency) of 40 ms. • Simple auto-guided tour requirement: 4G network connection or connect to a Wi-Fi network with a minimum required internet speed of 48 Mbps. • When you are in a noisy area, we recommend using the headphones of your device. • Make sure the place where you use AR is well lit. If you want to have lighting based on the sun's orbit, your position and the weather conditions, activate the artificial lighting button (+icon) that you will find during the AR experience.
Screenshots
Verdict
The clearest difference is monetization model: Open eClass Mobile at free against Telekom Chronos's ad-supported. On price, review sentiment, update cadence and ads 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.
Open eClass Mobile ships an update every 3 months, Telekom Chronos every 2 months. Both last shipped on October 14, 2026.
| Parameter | Open eClass Mobile | Telekom Chronos |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.9 (21 ratings) — better |
| Positive reviews | 2.3% of reviews | 10.0% of reviews — better |
| Number of ratings | — | 21 — better |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.3 | 15.0 — better |
| Further details — not scored | ||
| Size | 33 MB | 370 MB |
| Age rating | 17+ | 4+ |
| Developer | Greek Universities Network | COSMOTE |
Customer experience
Open eClass Mobile
Telekom Chronos
In-app purchases
Open eClass Mobile
No in-app purchases
Telekom Chronos
No in-app purchases
Questions
Is Open eClass Mobile free?
Is Telekom Chronos free?
Do Open eClass Mobile or Telekom Chronos have ads?
Which is updated more often, Open eClass Mobile or Telekom Chronos?
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