VAI Events vs Yujj
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VAI Events
Connect with the global vertical aviation community at international and regional events. Discover the latest technology, network with peers, and explore career development opportunities. This app brings together all aspects of vertical aviation.
- Event networking
- Latest technology discovery
- Career development
- Business opportunities
- Community connection
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Each year Vertical Aviation International hosts international and regional events where the global vertical aviation community gathers to network, learn and do business. Find the latest technology, catch up with old friends and take advantage of career development opportunities. If it has to do with vertical aviation, you'll find it at an VAI event.
Yujj
Effortlessly share your contact information by tapping an NFC tag or scanning a QR code. Create your profile once and manage it dynamically from anywhere, anytime. This app allows for offline QR code use, ensuring your details are always accessible.
- NFC contact sharing
- Dynamic QR code generation
- Offline QR code functionality
- Contact profile management
- Tap-to-share feature
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Share the contact on Tap or Scan Carry just one card with you everywhere and simply tap to share with people or let them scan the QR code to see your profile Create the contact once, get the QR code and use it off-line forever Dynamic QR Code Get the QR Code once and manage the contact from anywhere-anytime NFC Tag Get the NFC tag and just tap to share the contact details
Screenshots
Verdict
The clearest difference is review sentiment: Yujj at 100% against VAI Events's 29%. Yujj also leads on rating (5.0 vs 3.4) and monetization model (free vs ad-supported). VAI Events's advantage is update cadence (weekly vs every 3 weeks) and ratings volume (25 vs 4). On price, ads and in-app purchases 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.
Yujj holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: VAI Events has 25 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 29% of VAI Events's written reviews are positive against 100% of Yujj's.
VAI Events ships an update weekly, Yujj every 3 weeks. Both last shipped on November 3, 2026.
| Parameter | VAI Events | Yujj |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (25 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 28.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 25 — better | 4 |
| Update frequency | Weekly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 17.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 146 MB | 29 MB |
| Age rating | 17+ | 4+ |
| Developer | Helicopter Association International, Inc. | Vetzu Inc. |
Customer experience
VAI Events
Yujj
In-app purchases
VAI Events
No in-app purchases
Yujj
No in-app purchases
