We bring our history to life!
Watch the film
With the new COSMOTE CHRONOS App,
we bring our history to life
for the whole world to experience.

Now, the greatest monuments of our cultural heritage
come alive again, whether you are on the rock of the Acropolis
or anywhere else in Greece or abroad.

The technology of the future brings our great past
into the present, building on the latest Augmented and
Virtual Reality technologies as well as making use of Artificial
Intelligence over the 5G Network.

The COSMOTE CHRONOS App operates on all mobile operators' 4G & 5G
networks as well as on WiFi, and on ARKit and ARCore
supported mobile devices running iOS and Android.

So now you can admire the monuments of the Acropolis, as they were
in ancient times, learn everything about their history and
live a unique experience on your mobile phone or tablet.

The technologies
The technology of the future brings our great past into today!
5G Network
With the high speeds and almost zero latency of the 5G network, you can not only travel back in time with Clio, but also take a guided tour of the monuments, by selecting between the Private Tour or the Group Tour for groups of up to 5 people.
Intelligence (AI)
With the use of artificial intelligence, Clio - the application's digital assistant - understands your every written or spoken question and gives you the answer in real time.
Virtual Reality
The Virtual Reality technology enables you to walk inside the monuments and enjoy their every detail.
Reality (AR)
The Augmented Reality technology brings monuments to life in the real-world environment - whether you are on the Rock of the Acropolis looking at the digital representations of the ruins of the monuments, or anywhere else.
See where you can “travel”
Discover both the great monuments of the Acropolis and the Acropolis Museum,
walk inside them, and learn everything about.
The Sanctuary
of Artemis
This is the place where the goddess Artemis, the goddess of hunting, wildlife and protector of children, was worshiped. There it lay a 3-meter-high bronze statue of the Trojan Horse.
The Odeon
of Herodes
The Herodeon, a Conservatory in Roman times, was the largest conservatory built until 169 AD and, like all other conservatories, it was roofed. It was erected by Herodes, the wealthy Athenian orator and sophist, in honor of his wife, Regilla.
The Parthenon
The Parthenon is a symbol of architectural and artistic perfection. Now you can enjoy it as it was 2,500 years ago.
The Chalkotheke
Bronze weapons and artefacts were stored in this building. It is a building that unfortunately did not survive to this day. However, now you are able to tour its interior.
The Acropolis
The Acropolis museum is one of the most famous museums in the world. With the COSMOTE CHRONOS App you can admire the southern side of the Holly Rock as seen from the 2nd floor of the Museum, as well as a number of exhibits on the 3rd floor of the Museum.
History unfolds before your eyes
wherever you are
I am in the Acropolis.
If you are on the Holy Rock of the Acropolis, you can admire the monuments in the exact place they were in ancient times. This really takes off the experience with the App. You simply follow the map and scan the sign of the monument you want to view, following the instructions. Then, it comes alive before you, as it was in its heyday.
I am elsewhere.
If you are anywhere else, at home, at school, in Greece or even abroad, you can view the monuments come to life in front of you. You can also enjoy them even in their actual dimensions, browse their interior and learn historical information about them.
A quick look at the App
Tour of
the monuments
Thanks to Augmented and Virtual Reality technologies,
the App offers you the possibility to view and admire the exterior,
and walk through the interior of the
monuments, as they were in ancient times.
Whether you are
on the rock of the Acropolis of Athens, or anywhere
in Greece, or even on the other side of the Earth!
Meet Clio,
your digital
Clio is an artificial intelligence creation
and when you're connected to a 5G network,
you can ask her anything about the monuments
by pressing the green microphone button
once and asking a question as clearly as possible.
Try to make your question specific and include a keyword
(such as columns, statue, pediment, tank)
to have an accurate and real-time answer,
making your tour experience even more immersive.
Select your
When the mobile device is connected to a 5G
network, the COSMOTE CHRONOS App
not only enables you to make private and group
tours of up to 5 people, but also
enables you to chat with Clio.
Live the
tour experience
on a 4G & WiFi
If you are connected to a 4G or WiFi network,
you can admire all the monuments wherever
you are and take a private guided tour
while listening to recorded historical
Save your
While using the App, you can take videos
and photos of the representations of the
ancient monuments from your mobile phone
and share your experience with friends.
See how the
application works
Watch the video and learn about the
application's functions and capabilities.
Download the new
App for free
A COSMOTE project, in collaboration with the Ministry of Culture and Sports and
the support of the Acropolis Museum.
• All rights to the depicted monuments are owed by the Ministry of Culture and Sports (pursuant to L. 4858/2021)
• The monuments are subject to the jurisdiction of the Ephorate of Antiquities of the City of Athens
• Hellenic Ministry of Culture and Sports – Hellenic Organization of Cultural Resources Development
What is the COSMOTE CHRONOS app?

The COSMOTE 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.

For the first time, state-of-the-art technologies such as augmented reality (AR) and virtual reality (VR) are used to bring scientifically documented digital representations of selected Greek monuments as they were in classical antiquity and Roman times to mobile devices. With artificial intelligence (AI) and the unique capabilities of the 5G network, exploring the archaeological site of the Acropolis of Athens and learning complex information becomes “child’s play”, enjoyable and informative for all ages!

You can download the application for free from Google Play and Apple App Store.

It works with Android and iOS, on most 4G mobile devices manufactured after 2018, on all 5G devices, and on the networks of all mobile providers in Greece and abroad as well as on Wi-Fi.

What does the COSMOTE CHRONOS app offer?

The COSMOTE CHRONOS application gives you the opportunity to navigate through scientifically documented, 3D digital representations of specific monuments on the rock of the Acropolis of Athens as they were in ancient times, 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.

You can tour the Parthenon, the Sanctuary of Artemis Brauronia, the Chalkotheke, the Odeon of Herodes Atticus and selected exhibits/views from the Acropolis Museum at , the Museum’s 2nd floor, an AR representation of the ancient Acropolis’ south side as seen from the terrace of the Acropolis Museum restaurant and 3rd floors exhibits.

The application also offers self-guided or interactive audio tours of the monuments, either automatically or through a real-time Q&A conversation with Clio, the first-ever digital tour guide of an archaeological site.

Why did COSMOTE create the COSMOTE CHRONOS app?

At COSMOTE, we believe that addressing social challenges with the help of technology improves people's lives. For this reason, we develop innovative and cutting-edge technologies and support their mass penetration.

One of the challenges is the sharing of the Greece’s cultural heritage, essential to ensuring its future and enhancing social cohesion. In this context, combining the unique characteristics of 5G networks with innovative AR, VR and AI technologies enables tools that promote and disseminate the Greek culture.

In addition, digital inclusion is a social challenge we face as rapid technological developments pose the risk of many of our fellow citizens being “left behind”. Digitalisation of important monuments such as the rock of the Acropolis offers an unparalleled opportunity to highlight the tangible benefits of technological innovation for all and helps us address the challenge of increasing digital inclusion.

How do I download the COSMOTE CHRONOS app?
The COSMOTE CHRONOS application is available to download for free from Google Play and the Apple App Store. Given the stores’ policies, the application is only available for download to users with devices that support augmented reality (AR) technologies.
What are the minimum device and network connection requirements for use of the COSMOTE CHRONOS app?

For full functionality of all features of the COSMOTE CHRONOS application (viewing the digital representations of the monuments and navigating them with the help of the digital assistant, Clio), you must have the following:

  1. An Android 5G device with ARCore running Android 10 or higher, OR

  2. An Apple 5G device with ARKit running iOS 11.0 or higher.

  3. A 5G network connection with a speed of 200 Mbps and a ping rate (latency) of 40 ms or less.

You can see the digital representations of the monuments and have audio tour if you have:

  1. An Android 4G device with ARcore running Android 10 or higher, OR

  2. An Apple 4G device with ARkit running iOS 11.0 or higher.

  3. Connection to a 4G or Wi-Fi network with a speed of 48Mbps.

Where can I use the COSMOTE CHRONOS application?
You can use the COSMOTE CHRONOS application anywhere, whether you are in Athens on the rock of the Acropolis or at home, at school, in the park, or anywhere else, in Greece or the rest of the world.
What do I need to interact with Clio, the digital tour guide (Avatar)?
Clio, our digital tour guide, is automatically activated when you have a 5G device and are in an area with 5G network coverage.
What are my tour options?

You have two guided tour options: Individual or Group tour.

In both cases, except for the automatic tour, you can ask Clio, your digital tour guide.

In the group tour, you can create a group of 5 people and you will all participate in the same tour at the same time. It's a great option if you're at school or hanging out with friends!

Tips for the group tour guide!

  • Put on your headphones.

  • Ask questions one at a time. Not all at the same time.

  • In both cases, except for the automatic tour, you can ask Clio, your digital tour guide, about anything you wish to know.

In which regions of Greece is COSMOTE 5G available?

The COSMOTE 5G network has the widest population coverage in the country (over 80% countrywide coverage). It is already available in 60 cities and Islands across Greece, offering 97% coverage in Athens and 90% in Thessaloniki and maximum speeds which, in certain areas, exceed 1 Gbps.

The cities and islands where COSMOTE 5G is active are:

  • Athens

  • Thessaloniki

  • Patras

  • Attica: Wider Area of the Prefecture of Attica including the cities and settlements, road axes and tourist areas.

  • Thessaly: Volos, Karditsa, Larissa, Trikala, Almyros, South Pelion

  • Epirus: Ioannina, Igoumenitsa, Arta, Preveza, Parga

  • Central Greece: Boeotia, Evia, Fthiotida (except Domokos)

  • Eastern Macedonia and Thrace: Drama, Kavala, Xanthi, Alexandroupolis, Komotini

  • Central Macedonia: Giannitsa, Naoussa, Serres, South Moudania, South Kallikrateia, Kassandra

  • West Macedonia: Kozani

  • Peloponnese: All prefectures

  • Saronic Islands: Salamina, Aegina, Hydra, Poros, Spetses, Agistri, Porto Heli

  • Cyclades: All islands

  • Dodecanese: All islands

  • North Aegean Islands: Ikaria, Samos, Fourni, Psara, Lesvos (Mytilini), Limnos (Myrina)

  • Ionian Islands: All islands

  • Crete: All prefectures

  • Ionia Motorway

  • Olympia Motorway

  • Moreas Motorway

The COSMOTE 5G network will continue to expand to even more areas throughout the year, in line with our goal of covering 90 % of Greece by the end of 2023.

If you are using a 5G-compatible device in an area that does not have 5G coverage, your phone will automatically switch to the available network and then automatically reconnect to the COSMOTE 5G network as soon as you return to an area with 5G coverage.

Can I use the COSMOTE CHRONOS application without 5G connectivity?

Yes, you can. You can see the digital representations of the monuments and have an automatic tour, but without Clio, the digital assistant.

You must have a 4G device with the following features:

    1. Android 4G device with ARcore running Android 10 or higher.

    2. Apple 4G device with ARkit running iOS 11.0 or higher.

You must be connected to 4G or Wi-Fi network with a speed of 48Mbps.

I am not a COSMOTE subscriber. Can I use the app?
Yes, you can. If you have a 5G device and you are in a place with 5G coverage from your provider, even if you are using roaming services, you can use all the functionalities. You can use the COSMOTE CHRONOS application even with a 4G device and your provider's 4G connection or Wi-Fi. However, in this case you will not have the interactive tour experience with Clio, our digital assistant.
What is a beta version?
A beta version is a trial version. Our beta version, available in certain areas of Greece, is deployed to test new functions aiming to optimise the user experience. As a result, some of the beta version’s features may not work.
Is the COSMOTE CHRONOS application a payable app?
The COSMOTE CHRONOS application is Free (not payable) for everyone. You need to download the monument files to your device in order to use the COSMOTE CHRONOS application. Turn on Wi-Fi to download the monument files. The transaction with Clio will consumes a few Kbytes of your data.
How many ΜΒ reserves the application from my mobile device?
You can see in the stores the exact MB size of COSMOTE CHRONOS. You will inform about the ΜΒ required in order to download each monument. (the Parthenon, the Sanctuary of Artemis Brauronia, the Chalkotheke, the Odeon of Herodes Atticus, the Acropolis Museum).
Is the application available for the roamers?
Yes. The COSMOTE CHRONOS application is available for every provider and for the roamers. There is applicable roaming policy of consumption of each provider.
Is the content of the COSMOTE CHRONOS application verified/supported by archaeological information?
Yes, it is. The COSMOTE CHRONOS application content was taken care of Mr. Panos Valavanis, Professor Emeritus of Classical Archeology in the Department of History and Archeology, School of Philosophy, the University of Athens. Mr. Valavanis has participated in many excavations and archaeological excavation programmes and has authored or co-authored numerous publications in Greek and other languages.
What are AR/VR/AI/5G technologies?

Augmented reality (AR): Augmented reality adds digital content to what we see around us in the real world. Thus, it enriches the real world with useful information. In the COSMOTE CHRONOS application, AR technology makes it possible to display the recreated monuments as they were in the ancient world, whether we are at the archaeological site on the Acropolis of Athens or anywhere else in the world.

Virtual reality (VR): Virtual reality is the simulation of an environment via technology. For example, we can navigate through the monuments as they are now, using Virtual Reality technology in the COSMOTE CHRONOS application.

Artificial intelligence (AI): Artificial intelligence enables a machine to replicate the cognitive functions of a human such as learning, conversing, planning and being creative.

AI enables machines to 'understand' their environment, solving problems efficiently and acting towards a specific goal. One of the applications of AI is supporting digital assistants or avatars with which the user can communicate as if with a real person. For example, in the COSMOTE CHRONOS application, Clio understands the questions we ask orally or in written format and answers the questions accurately, even when the questions are phrased in different ways.


5G Network: 5G is the 5th generation of mobile networks. It is the fastest and most reliable mobile technology developed to date, offering very high data speeds, significantly increased capacity and ultra-low latency.

The 5G Network is accessed with a device that is compatible with the 5G network infrastructure in places with 5G coverage.

How do I place a monument on a site?
  • To place the digital representations of the monuments in your space, and particularly for augmented reality (AR) to work optimally, we recommend being in a well-lit environment. Aim your camera at a large, unobstructed flat surface such as the ground, a table or the floor.

  • A green surface will appear. It is the foundation on which the digital monument will be recreated.

  • Place this surface on a table or the floor.

  • Keep your device at a distance of 1-1.5 metres (3-5 ft.) from the flat surface where you want to place the monument.

What can I do with the monument?
  • At first, the monument will appear very small.

  • Using one finger, you can rotate the monument 360o to see it from all sides.

  • Using two fingers, you can enlarge (or shrink) the monument, you can enlarge it to its natural size.

  • You can navigate the monument with your device, inside and out, changing angles and positions. Get a closer look at anything that catches your interest with your device as if it were really in front of you!

How can I ask the avatar Clio a question?
  • To ask Clio a question, press the green button with the microphone icon once and release it. (The icon turns red while the COSMOTE CHRONOS application avatar is "listening" to you.)

  • Speak close to the microphone and as clearly as possible.

  • If you are in a noisy environment, please use your headphones with integrated microphone.

Explanation of icons:
  1. Microphone: Press the microphone icon once and release to ask a question. The green icon turns red while the COSMOTE CHRONOS app avatar is "listening" to you. When you finish speaking, the icon turns green again and the avatar answers.

  2. Chat icon: Press the chat icon to see a history of your questions and Clio’s answers. You can use the chat function instead of an oral dialogue with Clio.

  3. Camera: Use the camera function to take photos. These are saved on your device. In subsequent COSMOTE CHRONOS app versions, you will be able to share these photos on social media.

  4. Video: Use the video function to record videos. These are saved on your device. In subsequent COSMOTE CHRONOS app versions, you will be able to share these videos on social media. Press X if the video is playing and you want to resume navigation.

  5. Map: Press the map icon to access the “Map and Pins” screen to choose another place of the monument.

  6. Light: Press the light icon to adjust the lighting when your environment is not well lit or is very bright (interior lighting or sunlight) to see the monument better.

I can't download the monument file. What should I do?
In this case you need to check if your device has an internet connection. If it doesn't, please activate your device's Wi-Fi (if you're in a place with Wi-Fi access) or use your mobile data. If the monument still not download, please close and relaunch the COSMOTE CHRONOS application.
I'm in a 5G coverage area but I can't see the digital assistant. What should I do?
If your 5G experience is working (i.e., you can access the Q&A feature with Clio but you cannot see her), it is possible that Clio’s position is not in the line of sight of your device. Please move and turn your device in another direction until you see her.
Why Clio, the digital assistant, is not responding to my questions?
If you ask Clio a question but do not receive an answer, please check your 5G connection. Make sure your device is connected and try again. If the problem persists, please contact customer support.
Why the monument representations are dark and difficult to discern?
Make sure the environment in which you are using AR is well lit. If you want to have lighting based on the sun's orbit, your position, and the weather conditions, press the artificial lighting button (+icon) available during the AR experience.
I'm on the rock of the Acropolis and I've scanned the monument panel, but the monument isn't showing properly. What should I do?
If the monument does not appear correctly on your device, please 'scan' the panel again.