Devonian Lithological Database vs iGreekHolidays
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Devonian Lithological Database
Read full descriptionHide full description
The app is a database and mapping application for the Devonian Lithological Database, developed by Thomas L. Moore as part of his dissertation at the University of Arizona (1999). These data are freely available for non-commercial users. FEATURES 1. Database of Devonian rocks containing over 5000 records. 2. Ability to narrow selection by age. 3. Interactive global map for displaying selection. 4. The ability to view specific records containing all of the information from the original database.
iGreekHolidays
This app provides a comprehensive Greek calendar, including public holidays, religious observances, and daily name days. It also features historical "on this day" facts and fasting information.
- Public holidays for upcoming years
- Orthodox movable and major feasts
- Contact integration for birthdays and name days
- On this day historical facts
- Fasting days
- Daily name calendar with main and alternative names
- Saint index
Read full descriptionHide full description
Χρησιμοποιήστε το k.i.stamatis@gmail.com για να στείλετε παρατηρήσεις, παράπονα και ιδέες για επέκταση της εφαρμογής! ------------------- Η εφαρμογή "iGreekHolidays" είναι μια από τις πρώτες εφαρμογές ημερολογίου που κυκλοφόρησαν στα ελληνικά. Σε περιβάλλον επιτραπέζιου ημερολογίου ο χρήστης έχει την δυνατότητα να δει: - Αργίες για τα επόμενα έτη - Κινητές εορτές και μεγάλες εορτές της Ορθόδοξης εκκλησίας - Σύνδεση με τις επαφές για εύρεση εορτών και γενεθλίων - Σαν σήμερα - Νηστείες - Παγκόσμιες και διεθνείς ημέρες - Καθημερινό εορτολόγιο με κύρια ονόματα και εναλλακτικές μορφές - Παρουσίαση επαφών με γιορτές και γενέθλια - Ευρετήριο ονομάτων για την εύρεση εορτής - Συναξάρι με όλους τους Αγίους της ημέρας κ.α
Screenshots
Verdict
The clearest difference is update cadence: iGreekHolidays at every 9 months against Devonian Lithological Database's every 30 months. Devonian Lithological Database's advantage is iOS requirement (11.0 vs 14.0). 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.
Devonian Lithological Database ships an update every 30 months, iGreekHolidays every 9 months. The most recent releases landed on October 26, 2026 and October 23, 2026 respectively.
| Parameter | Devonian Lithological Database | iGreekHolidays |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.2 (6 ratings) — better |
| Positive reviews | — | 85.7% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 30 months | Every 9 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 19 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas L. Moore | Fairy Tale Software |
In-app purchases
Devonian Lithological Database
No in-app purchases
iGreekHolidays
No in-app purchases
