Helix Mastermind vs GEF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Helix Mastermind
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Hosting life-changing trips for successful online entrepreneurs who want to meet like-minded killers
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
Helix Mastermind and GEF are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.
| Parameter | Helix Mastermind | GEF |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 137 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | T2 STUDIOS APP DEVELOPMENT S.R.L. | AleDo TECH d.o.o. |
In-app purchases
Helix Mastermind
No in-app purchases
GEF
No in-app purchases
Questions
Is Helix Mastermind free?
Is GEF free?
Do Helix Mastermind or GEF have ads?
Which is updated more often, Helix Mastermind or GEF?
Other comparisons
