Seismicity vs Xanthi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Seismicity
Get real-time, reliable information on seismic events in Greece directly from the National Observatory of Athens. Users can view earthquakes on a map, personalize event details, and report their experiences to contribute to a broader understanding of seismic impact.
- Real-time seismic event information
- Map view of seismic events
- Personalized event details
- Share seismic events
- Report felt earthquakes
- Light and dark theme options
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The SEISCMICITY – Ν.Ο.Α. application is the official application of the Geodynamic Institute of the National Observatory of Athens, with the aim of providing to the citizens timely and reliable information about seismic events in Greece. It is thus a direct point of contact for the general public, the traditional and digital press and the scientific community around the seismic phenomena in the country. Thanks to the participatory action of its users, the application displays an overall picture of the magnitude and impact of the earthquake. Main features: - Real time information on seismic events, with the reliability of the National Observatory of Athens. - Ability to display seismic events on the map and observe their geographical location. - Personalized event view (earthquake magnitude, date, distance from user location) - Ability to share seismic events via e-mail, social networks, etc. - "I felt an earthquake" functionality where users submit their experiences and can also view the area where an earthquake was felt, according to user entries. - User Interface in light and dark color palette (theme). - Available in Greek and English
Xanthi
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The official Municipality of Xanthi mobile App! Daily Requests, Emergencies information, Events Calendar and many other functions and tools to make the life of the visitor or citizen easier. Try it yourself now!
Screenshots
Verdict
The clearest difference is update cadence: Xanthi at every 2 months against Seismicity's every 7 months. Seismicity's advantage is iOS requirement (11.0 vs 13.0). On price, rating, ratings volume 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.
On the App Store both sit at effectively the same score — 5.0 for Seismicity against 5.0 for Xanthi. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Seismicity ships an update every 7 months, Xanthi every 2 months. Both last shipped on October 24, 2026.
| Parameter | Seismicity | Xanthi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 7 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 30 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | National Observatory of Athens | Municipality of Xanthi |
In-app purchases
Seismicity
No in-app purchases
Xanthi
No in-app purchases








