Prima DoorApp vs GEF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Prima DoorApp
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DoorApp use bluetooth technology for secure open your door.
GEF
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Welcome to the official app for the Green Energy Fair Zagreb (GEF 2025). Join us at Arena Zagreb, October 29-30, 2025, and explore the region’s leading showcase of renewable energy, sustainable technologies, and smart solutions. Whether you are an industry expert, exhibitor, or visitor, the GEF app helps you navigate the event, stay informed, and make the most of your time at the fair. App Features: • News and updates - Stay informed with the latest announcements, highlights, and exhibitor news in real time. • Interactive map - Explore the venue with a detailed map showing all booths, stages, and exhibitor locations. • Event schedule - Browse the full program of panels, talks, and workshops, and learn more about each speaker and topic. • Reminders and notifications - Set personalized reminders for sessions you don’t want to miss and receive instant updates about schedule changes. • Speakers and panelists - Discover key experts and innovators driving the clean energy transition. • Real-time alerts - Get live notifications about important updates, changes, and announcements throughout the event. • Conenctions and messaging - Connect and exchange messages with other users attending the event. Why attend GEF Zagreb: • Over 150 exhibitors from across Europe. • Expert-led panels and workshops on renewable energy, e-mobility, and energy transition. • Networking opportunities with industry leaders and innovators. • Free access for registered visitors. Plan your visit, explore exhibitors, and stay connected - all from one app. Be part of Croatia’s largest event dedicated to renewable energy and sustainability.
Screenshots
Verdict
The clearest difference is update cadence: GEF at weekly against Prima DoorApp's every 2 months. GEF also leads on iOS requirement (15.0 vs 18.0). 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.
Prima DoorApp ships an update every 2 months, GEF weekly. The most recent releases landed on October 11, 2026 and October 28, 2026 respectively.
| Parameter | Prima DoorApp | GEF |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPod |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 115 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Prima Systems d.o.o. | AleDo TECH d.o.o. |
In-app purchases
Prima DoorApp
No in-app purchases
GEF
No in-app purchases
Questions
Is Prima DoorApp free?
Is GEF free?
Do Prima DoorApp or GEF have ads?
Which is updated more often, Prima DoorApp or GEF?
Other comparisons
