# 津波 vs rainfo

The clearest difference is in-app purchases: rainfo at none against 津波's 4. rainfo also leads on update cadence (every 5 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 津波 sells 4 one-off in-app purchases. rainfo asks for nothing beyond the download.

津波 ships an update every 2 months, rainfo every 5 days. Both last shipped on October 8, 2026.

## The numbers

| Metric | 津波 | rainfo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 55 MB |
| Requires iOS | 15.6 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [SANGBEOM PARK](https://appshunter.io/developer/1796086696) |

## What reviewers say

### 津波

[App page](https://appshunter.io/ios/app/tsunami/id1615362492)

This app displays tsunami observation data and seismic intensity information. It provides details about earthquakes, including time, epicenter, intensity, and magnitude. It also shows tsunami observation data.

**Highlights:** Tsunami observation data, Seismic intensity information, Earthquake details (time, epicenter, magnitude), Real-time updates, User feedback integration

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| アプリケーション開発者への応援募金 | $1.99 | one-time |
| Coffee (Large) | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


### rainfo

[App page](https://appshunter.io/ios/app/rainfo/id6741888073)

**In-app purchases:** none


## Frequently asked questions

### Is 津波 free?

津波 is free to download, with in-app purchases available.

### Is rainfo free?

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

### Do 津波 or rainfo have ads?

Both 津波 and rainfo show ads.

### Which is updated more often, 津波 or rainfo?

津波 ships an update every 2 months, and rainfo every 5 days. Most recently, 津波 was updated on October 8, 2026 and rainfo on October 8, 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.*