# PREP（プレップ） vs とこなめ防災

The clearest difference is in-app purchases: とこなめ防災 at none against PREP（プレップ）'s 2. とこなめ防災 also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). PREP（プレップ）'s advantage is review sentiment (29% vs 0%) and update cadence (every 6 weeks vs every 3 months). On price and device support there is nothing between them.

Both are free to download. PREP（プレップ） sells 2 in-app purchases, starting at $0.99 per month. とこなめ防災 asks for nothing beyond the download.

PREP（プレップ） ships an update every 6 weeks, とこなめ防災 every 3 months. The most recent releases landed on October 14, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PREP（プレップ） | とこなめ防災 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (6 ratings)](https://appshunter.io/ios/app/prep/id398954883/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | **29.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 90 MB | 103 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RC Solution Co.](https://appshunter.io/developer/398954886) | [常滑市](https://appshunter.io/developer/1735272047) |

## What reviewers say

### PREP（プレップ）

[App page](https://appshunter.io/ios/app/prep/id398954883)

This app provides real-time disaster information based on your current location, including alerts for earthquakes, tsunamis, and heavy rain. It helps you plan for disasters by allowing you to set action plans and share information with family members. The app also offers guidance during emergencies to ensure safe actions.

**Highlights:** Real-time disaster information by location, Disaster action planning, Emergency guidance, Family information sharing, Various disaster alerts (earthquake, tsunami, rain, etc.), Precipitation forecast timeline

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PREP Premium Service | $0.99 | per month |
| PREP ファミリーサービス | $3.49 | per month |


### とこなめ防災

[App page](https://appshunter.io/ios/app/id6479240260)

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

**In-app purchases:** none


## Frequently asked questions

### Is PREP（プレップ） free?

PREP（プレップ） is free to download, with in-app purchases available.

### Is とこなめ防災 free?

とこなめ防災 is free to download, with no in-app purchases.

### Do PREP（プレップ） or とこなめ防災 have ads?

PREP（プレップ） shows ads; とこなめ防災 does not.

### Which is updated more often, PREP（プレップ） or とこなめ防災?

PREP（プレップ） ships an update every 6 weeks, and とこなめ防災 every 3 months. Most recently, PREP（プレップ） was updated on October 14, 2026 and とこなめ防災 on October 9, 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.*