Global Seismic Data vs StayNZ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Global Seismic Data
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The official Global Seismic Data app. Earthquakes are a global hazard which pose a threat to life and cause significant business interruption and social upheaval. Protect lives and reduce recovery costs by using our Structural Health Monitoring System. Visit www.gsdhq.io for more information. App features: • Structural Health Monitoring service for our customers • View large datasets of earthquakes and aftershocks • Receive customised notifications for earthquakes • Send felt reports or ‘I am safe’ messages to family/friends after an earthquake occurs
StayNZ
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StayNZ is your personal residency and citizenship tracker built specifically for migrants living in New Zealand. Whether you're aiming for Permanent Residency (PR) or Citizenship, StayNZ helps you stay on top of your eligibility with simple tools: • Track travel history: Log your departures and arrivals with ease. • Visual timelines: Understand your physical presence in New Zealand at a glance. • Multiple profiles: Track residency progress for your partner, kids, or anyone else in your family, all in one app. • Travel impact planner: See how a trip you're planning will affect your eligibility date before you book it. • Export travel history: Download your travel records as a PDF or CSV for visa applications or your own files. • Smart reminders: Get notified when you're eligible to apply. • Local awareness: All dates are calculated in New Zealand time. • Residency and citizenship modes: Switch based on your visa goals. StayNZ simplifies the complex residency requirements and gives you confidence in your immigration journey. Disclaimer: This app provides general guidance only. Always check with Immigration New Zealand for official rules.
Screenshots
Verdict
The clearest difference is in-app purchases: Global Seismic Data at none against StayNZ's 3. StayNZ's advantage is update cadence (every 6 days vs every 8 months). On price, ads, device support and iOS requirement 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. StayNZ sells 3 one-off in-app purchases. Global Seismic Data asks for nothing beyond the download.
Global Seismic Data ships an update every 8 months, StayNZ every 6 days. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.
| Parameter | Global Seismic Data | StayNZ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Global Seismic Data NZ Limited | Dang Khoa Vo |
In-app purchases
Global Seismic Data
No in-app purchases
StayNZ
- Coffee for the Dev$2.99
- Lunch Break Booster$7.99
- StayNZ Super Supporter$17.99
Questions
Is Global Seismic Data free?
Is StayNZ free?
Do Global Seismic Data or StayNZ have ads?
Which is updated more often, Global Seismic Data or StayNZ?
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