# Incident Action Plan vs Vlahi CERES

The clearest difference is rating: Vlahi CERES at 4.6 against Incident Action Plan's 4.1. Vlahi CERES also leads on update cadence (monthly vs every 2 months). Incident Action Plan's advantage is in-app purchases (none vs 5). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Vlahi CERES sells 5 in-app purchases, starting at $6.99 per month. Incident Action Plan asks for nothing beyond the download.

Vlahi CERES holds the better App Store score, 4.6 against 4.1. Both are backed by a comparable volume of ratings — 8 and 8 respectively. Written reviews complicate that: 80% of Incident Action Plan's written reviews are positive against 75% of Vlahi CERES's, so the app with the better star average is not the one people write more warmly about.

Incident Action Plan ships an update every 2 months, Vlahi CERES monthly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Incident Action Plan | Vlahi CERES |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (8 ratings)](https://appshunter.io/ios/app/incident-action-plan/id1005842864/reviews) | **[4.6 (8 ratings)](https://appshunter.io/ios/app/vlahi-ceres/id1450298580/reviews)** |
| Number of ratings | 8 | 8 |
| Positive reviews | **80.0% of reviews** | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Free** | Freemium |
| Size | 7 MB | 38 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Response Group, Inc.](https://appshunter.io/developer/1005842863) | [Vlahi Systems LLC](https://appshunter.io/developer/647026840) |

## What reviewers say

### Incident Action Plan

[App page](https://appshunter.io/ios/app/incident-action-plan/id1005842864)

This incident management tool helps organize personnel, equipment, finances, and logistics for emergency responses. It provides NIMS-compliant forms and allows for real-time data updates, geotagged image uploads, and personnel tracking.

**Highlights:** Create incidents, Access PDF forms, Upload geotagged images, Barcode scanner for personnel/equipment, Operational feedback, Update event logs, Locate and contact personnel

**In-app purchases:** none


### Vlahi CERES

[App page](https://appshunter.io/ios/app/vlahi-ceres/id1450298580)

This platform aids in chemical emergency incident planning and response by integrating plume dispersion models with real-time meteorological and sensor data. It offers free access to hazard modeling tools and optional subscription modules for enhanced capabilities like live weather, sensor-driven identification, and advanced reporting.

**Highlights:** Plume dispersion modeling, Real-time meteorological and sensor data integration, Google Maps integration with street view and traffic, Free ALOHA® model access, Subscription modules for enhanced capabilities, Location tracking for personal devices, Advanced reporting and collaboration tools

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription | $59.99 | per year |
| CERES Vulnerability and Risk | $79.99 | per month |
| HAZMAT Responder | $124.99 | per month |
| CERES - HAZMAT Team | $164.99 | per month |


## Frequently asked questions

### Is Incident Action Plan free?

Incident Action Plan is free to download, with no in-app purchases.

### Is Vlahi CERES free?

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

### Which has better reviews, Incident Action Plan or Vlahi CERES?

Vlahi CERES is rated higher. Incident Action Plan averages 4.1 out of 5 from 8 ratings, while Vlahi CERES averages 4.6 from 8 ratings.

### Do Incident Action Plan or Vlahi CERES have ads?

Neither Incident Action Plan nor Vlahi CERES shows ads.

### Which is updated more often, Incident Action Plan or Vlahi CERES?

Incident Action Plan ships an update every 2 months, and Vlahi CERES monthly. Most recently, Incident Action Plan was updated on October 24, 2026 and Vlahi CERES on October 24, 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.*