# Sapporo’s Disaster Management vs OasisPlus

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.

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.

## The numbers

| Metric | Sapporo’s Disaster Management | OasisPlus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/oasisplus/id1361730239/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 5.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 79 MB | 33 MB |
| Requires iOS | 16.0 | **13.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [City of Sapporo](https://appshunter.io/developer/1174152672) | [Kinemetrics, Inc.](https://appshunter.io/developer/491377816) |

## What reviewers say

### Sapporo’s Disaster Management

[App page](https://appshunter.io/ios/app/sapporos-disaster-management/id1287976156)

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.

**Highlights:** Disaster awareness and preparedness, City-wide hazard information, Evacuation site locations, Weather warnings, Information for residents and tourists

**Features:** Vision Pro support

**In-app purchases:** none


### OasisPlus

[App page](https://appshunter.io/ios/app/oasisplus/id1361730239)

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.

**Highlights:** Earthquake preparedness promotion, Seismic event alerting, Post-event action guidance, Building occupant management, Business continuity support, Integration with DSN web feed, Event-driven notifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sapporo’s Disaster Management free?

Sapporo’s Disaster Management is free to download, with no in-app purchases.

### Is OasisPlus free?

OasisPlus is free to download, with no in-app purchases.

### Do Sapporo’s Disaster Management or OasisPlus have ads?

Neither Sapporo’s Disaster Management nor OasisPlus shows ads.

### Which is updated more often, Sapporo’s Disaster Management or OasisPlus?

Sapporo’s Disaster Management ships an update every 2 months, and OasisPlus every 4 months. Most recently, Sapporo’s Disaster Management was updated on November 6, 2026 and OasisPlus on November 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*