# EYDAPP vs Seismicity

The clearest difference is review sentiment: Seismicity at 80% against EYDAPP's 36%. Seismicity also leads on rating (5.0 vs 2.5) and iOS requirement (11.0 vs 14.0). EYDAPP's advantage is update cadence (every 3 months vs every 7 months) and ratings volume (16 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Seismicity holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: EYDAPP has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 36% of EYDAPP's written reviews are positive against 80% of Seismicity's.

EYDAPP ships an update every 3 months, Seismicity every 7 months. The most recent releases landed on September 24, 2026 and July 7, 2026 respectively.

## The numbers

| Metric | EYDAPP | Seismicity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (16 ratings)](https://appshunter.io/ios/app/eydapp/id1549401856/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/seismicity-noa/id1596330084/reviews)** |
| Number of ratings | **16** | 2 |
| Positive reviews | 36.4% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 56 MB | 30 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ATHENS WATER SUPPLY & SEWERAGE COMPANY S.A.](https://appshunter.io/developer/922865346) | [National Observatory of Athens](https://appshunter.io/developer/1158804991) |

## What reviewers say

### EYDAPP

[App page](https://appshunter.io/ios/app/eydapp/id1549401856)

Access company online services with mobile enhancements. Pay bills using your device's scanner, view water meters, report faults with photos and GPS, and find customer support locations.

**Highlights:** Bill payment via barcode scanner, Debit, credit, and e-banking options, Interactive map for payment points, Water meter viewing and bill payment, Fault reporting with photo and GPS, Real-time scheduled works updates, Customer service location finder

**Features:** macOS Compatibility

**In-app purchases:** none


### Seismicity

[App page](https://appshunter.io/ios/app/seismicity-noa/id1596330084)

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.

**Highlights:** Real-time seismic event information, Map view of seismic events, Personalized event details, Share seismic events, Report felt earthquakes, Light and dark theme options

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EYDAPP free?

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

### Is Seismicity free?

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

### Which has better reviews, EYDAPP or Seismicity?

Seismicity is rated higher. EYDAPP averages 2.5 out of 5 from 16 ratings, while Seismicity averages 5.0 from 2 ratings.

### Do EYDAPP or Seismicity have ads?

Neither EYDAPP nor Seismicity shows ads.

### Which is updated more often, EYDAPP or Seismicity?

EYDAPP ships an update every 3 months, and Seismicity every 7 months. Most recently, EYDAPP was updated on September 24, 2026 and Seismicity on July 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*