# Crash Report Viewer vs 0Day

The clearest difference is in-app purchases: Crash Report Viewer at none against 0Day's 2. 0Day's advantage is update cadence (every 5 days vs every 4 months) and chart position (#195 vs unranked). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 0Day sells 2 in-app purchases, starting at $3.99 per month. Crash Report Viewer asks for nothing beyond the download.

Crash Report Viewer ships an update every 4 months, 0Day every 5 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Crash Report Viewer | 0Day |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/0day-cve-and-exploit-alerts/id6761655372/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | — | Freemium |
| Best chart rank | — | **#195** |
| Size | 5 MB | 10 MB |
| Requires iOS | **17** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Kazumasa Shimomura](https://appshunter.io/developer/1110502851) | [Richard Lous](https://appshunter.io/developer/1890695617) |

## What reviewers say

### Crash Report Viewer

[App page](https://appshunter.io/ios/app/crash-report-viewer/id6751777982)

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

**In-app purchases:** none


### 0Day

[App page](https://appshunter.io/ios/app/0day-cve-and-exploit-alerts/id6761655372)

**Currently charting:** #195 Top Grossing · Developer Tools (US App Store)

Receive immediate alerts for zero-day vulnerabilities, supply chain attacks, and compromised packages relevant to your specific technology stack. Get early warnings before they hit the news cycle, enabling proactive security measures.

**Highlights:** Zero-day vulnerability alerts, Supply chain attack notifications, Compromised package warnings, Stack-aware filtering, Early warning system, Push notifications, Full alert archive

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 0Day Pro | $3.99 | per month |
| 0Day Pro | $29.99 | per year |


## Frequently asked questions

### Is Crash Report Viewer free?

Crash Report Viewer is free to download, with no in-app purchases.

### Is 0Day free?

0Day is free to download, with in-app purchases available.

### Do Crash Report Viewer or 0Day have ads?

Neither Crash Report Viewer nor 0Day shows ads.

### Which is updated more often, Crash Report Viewer or 0Day?

Crash Report Viewer ships an update every 4 months, and 0Day every 5 days. Most recently, Crash Report Viewer was updated on November 8, 2026 and 0Day on November 5, 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.*