# Who's Responding? vs Fire Pump Calc

The clearest difference is review sentiment: Fire Pump Calc at 75% against Who's Responding?'s 32%. Fire Pump Calc also leads on rating (4.3 vs 3.3) and monetization model (free vs subscription). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

Fire Pump Calc holds the better App Store score, 4.3 against 3.3. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 32% of Who's Responding?'s written reviews are positive against 75% of Fire Pump Calc's.

Who's Responding? ships an update fortnightly, Fire Pump Calc every 5 days. The most recent releases landed on October 18, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Who's Responding? | Fire Pump Calc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (7 ratings)](https://appshunter.io/ios/app/whos-responding/id951921253/reviews) | **[4.3 (4 ratings)](https://appshunter.io/ios/app/fire-pump-calc/id6739542307/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | 31.5% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | Subscription | **Free** |
| Size | 133 MB | 6 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Fluent Information Management Systems, Inc.](https://appshunter.io/developer/951921252) | [Justin Medeiros](https://appshunter.io/developer/1782040504) |

## What reviewers say

### Who's Responding?

[App page](https://appshunter.io/ios/app/whos-responding/id951921253)

This app facilitates rapid alerting and coordination for specialized teams, groups, and individuals. It offers customizable notifications, real-time tracking, and access to digital resources for efficient incident response and operational management.

**Highlights:** Customized notifications, Real-time tracking, Navigation to incident locations, Live radio streaming, Hands-free alert speaking, Mapping tools, Digital resource access

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for firefighters
- 🚀 Fast alerts, often before pagers
- 💡 Good communication and member coordination
- 💡 Customizability for specific needs
- 💡 New features and improvements noted

**What reviewers complain about**

- 🐛 Unreliable notifications/alerts
- 🐛 App crashes frequently
- 🐛 Black screen issues
- 🐛 App freezes or won't load
- 🐛 Auto radio function unreliable

**Reported bugs**

- App not alerting to incidents/calls
- Auto radio function not turning on
- Locked out of active departments after resigning from one
- App not loading after last update
- App not notifying phone or watch of pages

**Requested features**

- Add something for repeat addresses
- Add a feature to see who is available on the main screen
- Apple Watch app for availability status
- History of calls and attendance tracking
- Option to listen to different departments within the county


### Fire Pump Calc

[App page](https://appshunter.io/ios/app/fire-pump-calc/id6739542307)

This professional hydraulic calculator assists fire service professionals and students with complex calculations for pump operations. It accurately determines pump discharge pressure, friction loss, elevation changes, and appliance pressure loss, all designed for real-world fireground scenarios. The app works offline and requires no account for immediate use.

**Highlights:** Pump Discharge Pressure (PDP) calculation, Friction loss for any hose lay, Elevation gain and loss calculation, Appliance pressure loss, Nozzle pressure calculation, Offline functionality, No account required

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Who's Responding? free?

Who's Responding? is free to download, with no in-app purchases.

### Is Fire Pump Calc free?

Fire Pump Calc is free to download, with no in-app purchases.

### Which has better reviews, Who's Responding? or Fire Pump Calc?

Fire Pump Calc is rated higher. Who's Responding? averages 3.3 out of 5 from 7 ratings, while Fire Pump Calc averages 4.3 from 4 ratings.

### Do Who's Responding? or Fire Pump Calc have ads?

Neither Who's Responding? nor Fire Pump Calc shows ads.

### Which is updated more often, Who's Responding? or Fire Pump Calc?

Who's Responding? ships an update fortnightly, and Fire Pump Calc every 5 days. Most recently, Who's Responding? was updated on October 18, 2026 and Fire Pump Calc on October 16, 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.*