# PREP（プレップ） vs QuakeFeed Earthquake Alerts

The clearest difference is review sentiment: QuakeFeed Earthquake Alerts at 83% against PREP（プレップ）'s 29%. QuakeFeed Earthquake Alerts also leads on rating (4.8 vs 2.3) and ads (none vs shown). On price, in-app purchases, monetization model 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 and QuakeFeed Earthquake Alerts sells 3 in-app purchases, starting at $2.99 per 3 months. Whichever you choose, the download price is not the number that matters.

QuakeFeed Earthquake Alerts holds the better App Store score, 4.8 against 2.3. That said, the two scores are not equally well evidenced: QuakeFeed Earthquake Alerts has 100K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 29% of PREP（プレップ）'s written reviews are positive against 83% of QuakeFeed Earthquake Alerts's.

PREP（プレップ） ships an update every 6 weeks, QuakeFeed Earthquake Alerts every 3 weeks. The most recent releases landed on September 23, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | PREP（プレップ） | QuakeFeed Earthquake Alerts |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (6 ratings)](https://appshunter.io/ios/app/prep/id398954883/reviews) | **[4.8 (100K ratings)](https://appshunter.io/ios/app/quakefeed-earthquake-alerts/id403037266/reviews)** |
| Number of ratings | 6 | **100K** |
| Positive reviews | 29.1% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Best chart rank | — | **#54** |
| Size | 90 MB | 169 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RC Solution Co.](https://appshunter.io/developer/398954886) | [Artisan Global LLC](https://appshunter.io/developer/403037269) |

## 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 |


### QuakeFeed Earthquake Alerts

[App page](https://appshunter.io/ios/app/quakefeed-earthquake-alerts/id403037266)

**Currently charting:** #54 Top Grossing · Weather, #205 Top Free · Weather (US App Store)

Track earthquakes worldwide with real-time alerts, customizable notifications, and detailed map layers. Access multiple data sources and view historical data. Premium features include wildfire and smoke tracking, volcano and hurricane alerts, and enhanced map options.

**Highlights:** Worldwide earthquake map, Real-time alerts, Customizable regional alerts, 3D globe map, Fault lines map layer, Wildfire and smoke tracking (Premium), Volcano and hurricane alerts (Premium)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| QuakeFeed Premium | $2.99 | per 3 months |
| QuakeFeed Premium | $6.99 | per year |
| Custom Notifications | $1.99 | one-time |

**What reviewers like**

- 🚀 Excellent for tracking earthquakes and fires
- 👍 Provides useful information and notifications
- 🔍 Detailed earthquake data and maps
- ⏱️ Fast and accurate earthquake reporting
- 📊 Helpful for monitoring seismic activity

**What reviewers complain about**

- 🐛 Inconsistent notification delivery
- 🔍 Missing data for some regions and events
- 💰 Aggressive monetization with ads and paywall
- 🗺️ Recent map changes are less user-friendly
- 🔍 Downgrading of earthquake magnitudes

**Reported bugs**

- Notification settings not working properly
- Map data disappearing or not loading correctly
- Subscription verification issues causing problems

**Requested features**

- Add support for more data sources (e.g. GNS, JMA)
- Provide more detailed volcano activity information
- Allow users to view historical earthquake data
- Improve map customization and zooming options
- Add ability to track magnetic pole movements


## 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 QuakeFeed Earthquake Alerts free?

QuakeFeed Earthquake Alerts is free to download, with in-app purchases available.

### Which has better reviews, PREP（プレップ） or QuakeFeed Earthquake Alerts?

QuakeFeed Earthquake Alerts is rated higher. PREP（プレップ） averages 2.3 out of 5 from 6 ratings, while QuakeFeed Earthquake Alerts averages 4.8 from 100K ratings.

### Do PREP（プレップ） or QuakeFeed Earthquake Alerts have ads?

PREP（プレップ） shows ads; QuakeFeed Earthquake Alerts does not.

### Which is updated more often, PREP（プレップ） or QuakeFeed Earthquake Alerts?

PREP（プレップ） ships an update every 6 weeks, and QuakeFeed Earthquake Alerts every 3 weeks. Most recently, PREP（プレップ） was updated on September 23, 2026 and QuakeFeed Earthquake Alerts on September 26, 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.*