# RAVEN Alerts vs Reverse Flow

The clearest difference is rating: Reverse Flow at 5.0 against RAVEN Alerts's 4.6. Reverse Flow also leads on monetization model (free vs free with in-app purchases) and iOS requirement (15.0 vs 17.6). RAVEN Alerts's advantage is update cadence (every 3 days vs weekly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. RAVEN Alerts sells 3 one-off in-app purchases and Reverse Flow sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Reverse Flow holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 13 and 5 respectively.

RAVEN Alerts ships an update every 3 days, Reverse Flow weekly. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | RAVEN Alerts | Reverse Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (13 ratings)](https://appshunter.io/ios/app/raven-alerts/id6755939734/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/reverse-flow-fire-hydraulics/id6775030535/reviews)** |
| Number of ratings | **13** | 5 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Weekly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 8 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [WNY Incident Alerts, Inc.](https://appshunter.io/developer/1857482948) | [DEREK ANDREW MURDOCK](https://appshunter.io/developer/6775030537) |

## What reviewers say

### RAVEN Alerts

[App page](https://appshunter.io/ios/app/raven-alerts/id6755939734)

Receive real-time updates on emergency incidents in the Western New York area. This app allows subscribers to stay informed and volunteer dispatchers to easily report incidents.

**Highlights:** Real-time incident alerts, Western New York incident coverage, Volunteer dispatcher reporting, Subscriber information access

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze Supporter | $5.00 | one-time |
| Silver Support | $10.00 | one-time |
| Gold Support | $25.00 | one-time |


### Reverse Flow

[App page](https://appshunter.io/ios/app/reverse-flow-fire-hydraulics/id6775030535)

This professional fireground hydraulics platform assists firefighters and pump operators in calculating complex flow rates, pump discharge pressures, and relay pumping requirements. It supports various nozzle types and allows for custom hose coefficients and elevation adjustments for accurate operational planning and decision support.

**Highlights:** Reverse Flow calculations, Required PDP calculations, Relay Pumping calculations, Split Lay analysis, Pump Chart storage, Nozzle support, Custom hose coefficients

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Reverse Flow Monthly Support $3 | $2.99 | per month |
| Reverse Flow Monthly Support $10 | $9.99 | per month |
| Reverse Flow One-Time Support $5 | $4.99 | one-time |
| Reverse Flow Pro | $4.99 | one-time |


## Frequently asked questions

### Is RAVEN Alerts free?

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

### Is Reverse Flow free?

Reverse Flow is free to download, with in-app purchases available.

### Which has better reviews, RAVEN Alerts or Reverse Flow?

Reverse Flow is rated higher. RAVEN Alerts averages 4.6 out of 5 from 13 ratings, while Reverse Flow averages 5.0 from 5 ratings.

### Do RAVEN Alerts or Reverse Flow have ads?

Neither RAVEN Alerts nor Reverse Flow shows ads.

### Which is updated more often, RAVEN Alerts or Reverse Flow?

RAVEN Alerts ships an update every 3 days, and Reverse Flow weekly. Most recently, RAVEN Alerts was updated on November 9, 2026 and Reverse Flow on October 31, 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.*