# Disaster Alert (PDC Global) vs Before Zero

Disaster Alert (PDC Global) and Before Zero are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Disaster Alert (PDC Global) ships an update every 3 weeks, Before Zero every 6 weeks. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Disaster Alert (PDC Global) | Before Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (451 ratings)](https://appshunter.io/ios/app/disaster-alert-pdc-global/id381289235/reviews)** | — |
| Number of ratings | **451** | — |
| Positive reviews | 64.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free | — |
| Size | 150 MB | 42 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Pacific Disaster Center](https://appshunter.io/developer/381289238) | [Yigit ERKAL](https://appshunter.io/developer/1870976115) |

## What reviewers say

### Disaster Alert (PDC Global)

[App page](https://appshunter.io/ios/app/disaster-alert-pdc-global/id381289235)

Stay informed about global natural disasters with real-time hazard alerts and impact reports. Customize warnings for your area and access visualized data from verified sources to help you stay safe.

**Highlights:** Real-time hazard alerts, 18 types of natural hazards, Customizable early warning alerts, Estimated impact reports, Visualized modeled hazard data, Interactive map interface

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Accurate and detailed information
- 🌍 Comprehensive global coverage
- 👍 Informative and useful app
- 📊 Provides situational awareness

**What reviewers complain about**

- 🐛 Bugs and glitches after updates
- 🔍 Difficult to navigate and use
- ⏱️ Slow loading times
- 🔒 Forced account creation to access features

**Reported bugs**

- App freezes or crashes on launch
- Notification count not clearing properly
- Map and layers not functioning correctly
- Login and account issues

**Requested features**

- Add GPS location and time filtering options
- Improve notification system and customization
- Provide more detailed and up-to-date information
- Enhance user interface and experience


### Before Zero

[App page](https://appshunter.io/ios/app/before-zero-emergency-prep/id6760922007)

**In-app purchases:** none


## Frequently asked questions

### Is Disaster Alert (PDC Global) free?

Disaster Alert (PDC Global) is free to download, with no in-app purchases.

### Is Before Zero free?

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

### Do Disaster Alert (PDC Global) or Before Zero have ads?

Neither Disaster Alert (PDC Global) nor Before Zero shows ads.

### Which is updated more often, Disaster Alert (PDC Global) or Before Zero?

Disaster Alert (PDC Global) ships an update every 3 weeks, and Before Zero every 6 weeks. Most recently, Disaster Alert (PDC Global) was updated on October 29, 2026 and Before Zero on October 28, 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.*