Sapporo’s Disaster Management vs OasisPlus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sapporo’s Disaster Management
This app provides crucial disaster information for residents and tourists in Sapporo. It offers details on earthquakes, typhoons, floods, evacuation sites, and weather warnings to help users prepare and respond effectively to emergencies.
- Disaster awareness and preparedness
- City-wide hazard information
- Evacuation site locations
- Weather warnings
- Information for residents and tourists
Read full descriptionHide full description
Sapporo’s Disaster Management App (nicknamed Sonae) is a smartphone application designed to raise awareness of earthquake disasters and wind and flood damage both among local residents as well as tourists visiting the city so that everyone can prepare for and act in response to disasters. The number of typhoons approaching Hokkaido has recently increased due to abnormal weather phenomena (e.g., El Niño) and other reasons. Sapporo’s Disaster Management App (Sonae) allows users to easily and quickly obtain useful information both under normal circumstances and in times of disasters. It provides information on various types of disasters, city-wide hazard information by type of disaster, evacuation site information, evacuation recommendations, and weather warnings. This App, which is designed for self-help, public help, and mutual help, can be used by many local residents as well as tourists visiting Sapporo as a disaster management guide that can help to ensure everyone’s safety and security in Sapporo.
OasisPlus
Prepare for, respond to, and recover from seismic events with this app. It helps building managers coordinate occupants and maintain business continuity by reducing panic. Integrates with external feeds for general preparedness and event-driven notifications.
- Earthquake preparedness promotion
- Seismic event alerting
- Post-event action guidance
- Building occupant management
- Business continuity support
- Integration with DSN web feed
- Event-driven notifications
Read full descriptionHide full description
OasisPlus is a highly-engaging mobile application that gives building managers and organizations the ability to promote earthquake preparedness before a seismic event, alert users during a seismic event, and guide users to the appropriate next steps and actions after a seismic event. Building managers will be able to easily manage building occupants, and promote business continuity by reducing panic during a seismic event. The application will integrate with the DSN web feed for general earthquake and preparedness information, as well as OASIS for event-driven notifications.
Screenshots
Verdict
The clearest difference is update cadence: Sapporo’s Disaster Management at every 2 months against OasisPlus's every 4 months. OasisPlus's advantage is iOS requirement (13.2 vs 16.0). On price, ads, in-app purchases and monetization model 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.
Sapporo’s Disaster Management ships an update every 2 months, OasisPlus every 4 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | Sapporo’s Disaster Management | OasisPlus |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | 5.6% of reviews | — |
| Number of ratings | — | 5 — better |
| Update frequency | Every 2 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.2 — better |
| Further details — not scored | ||
| Size | 79 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | City of Sapporo | Kinemetrics, Inc. |
Customer experience
Sapporo’s Disaster Management
OasisPlus
In-app purchases
Sapporo’s Disaster Management
No in-app purchases
OasisPlus
No in-app purchases
Questions
Is Sapporo’s Disaster Management free?
Is OasisPlus free?
Do Sapporo’s Disaster Management or OasisPlus have ads?
Which is updated more often, Sapporo’s Disaster Management or OasisPlus?
Other comparisons











