Comparison

Who's Responding? vs Fire Pump Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Who's Responding?

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
Read full description

Who’s Responding: The ultimate solution for alerting and coordinating specialized teams, groups, or individuals with precision and speed. Whether you're mobilizing emergency services, filling critical overtime shifts, or managing complex response operations, Who’s Responding is fully customizable to meet your unique needs. Trusted by Diverse Teams For over a decade, thousands of professionals across various industries rely on Who’s Responding, including: • Emergency Services (Fire, Police, EMS) • Emergency Management • Search & Rescue • Public Works, Waste & Water Treatment • Health & Safety Teams • Wildlife Rescue • Mental Health Response • Hospitals • Schools • Mining Operations Powerful Features for Seamless Coordination • Customized Notifications: Tailor alerts to your team’s specific requirements. • Real-Time Tracking: Know who’s responding and their ETA instantly. • Navigation: Turn-by-turn directions to incident locations. • Live Radio: Talk on a radio? Listen live anytime, anywhere. • Hands-Free: Auto-speak alerts for safe, on-the-go use. • Mapping Tools: Add markers, labels, and boundaries for clear visualization. • Digital Resources: Access SOGs, SOPs, preplans, and more on demand. • Event & Attendance Tracking: Monitor participation and response history. • Availability Management: View current and future staff availability. • Shared Rolodex: Centralized contact list for quick communication. • Apparatus Management: Streamline equipment and vehicle assignments. + So many more Why Choose Who’s Responding? With endless customization and a proven track record, Who’s Responding empowers teams to act faster, smarter, and more efficiently. Join thousands of users who trust us to deliver mission-critical coordination. Get Started Today Visit www.WhosResponding.com to learn more and start your 45-day free trial. Note: You must be a member of a Who’s Responding subscription to use this app. Note: Continued use of GPS in the background may reduce battery life.

About

Fire Pump Calc

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
Read full description

Fire Pump Calc is the hydraulic reference tool built for the fireground — fast, accurate, and designed by fire service personnel for fire service personnel. STRUCTURAL OPERATIONS Calculate pump discharge pressure for any structural attack scenario. Select nozzle pressure, hose diameter, hose length, flow rate, elevation, and number of appliances. Instant PDP output using industry-standard friction loss formulas. Metric/imperial toggle built in. WILDLAND PUMP SPECS Full reference specs for five verified wildland pumps — Waterax MARK-3, Wick 80-4H, Honda WH20X, CET PFP-23hp, and CET PFP-11hp. Performance curves, engine specs, fuel type, weight, and max head pressure. All data verified against manufacturer documentation. ADVANCED WILDLAND CALCULATOR Purpose-built for wildland initial attack. Select your pump, hose diameter, hose length, elevation, nozzle type, wyes and fittings, water source, and tank fill percentage. Outputs required PDP, GPM at PDP, max hose lay, max elevation, and estimated runtime — with a live indicator showing whether your required PDP is within pump capacity. CUSTOM PUMP BUILDER Add your own pump specs and save them for future reference. Custom pumps appear in both Wildland screens and persist between sessions. BUILT FOR THE JOB No sign-in required. Works fully offline. No ads, no in-app purchases, no external network calls. A mandatory disclaimer is presented on first launch. Built and maintained by Captain Justin Medeiros, Kitimat Firefighters Association.

Screenshots

Who's Responding?4 screens
Fire Pump Calc4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Who's Responding? versus Fire Pump Calc: the parameters behind the verdict, then further details
ParameterWho's Responding?Fire Pump Calc
PriceFreeFree
Rating3.3 (7 ratings)4.3 (4 ratings) — better
Positive reviews31.5% of reviews75.0% of reviews — better
Number of ratings7 — better4
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.415.6 — better
Further details — not scored
Size133 MB6 MB
Age rating4+4+
DeveloperFluent Information Management Systems, Inc.Justin Medeiros

Customer experience

Who's Responding?

All ratings7 ratings
Positive42.9%
Neutral14.3%
Negative42.9%
Written reviews73 reviews
Positive31.5%
Neutral17.8%
Negative50.7%

Fire Pump Calc

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

Bugs and requests

Who's Responding?

Reported bugs

48 issues
  • 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
Show 43 more
  • App frozen, missed calls during the night
  • Black screen glitching
  • App puts user as 'standing down' when not chosen
  • Response status options not easy to access
  • App crashing when zooming or interacting with map
  • No longer giving notifications after transferring to new iPhone
  • No longer connecting on IOS 18.4
  • Available slide button won't allow it to go to Unavailable
  • Critical alert feature does not work
  • App won't boot up half the time
  • App pages same message multiple times
  • Pages come through with no information and no audio
  • App is glitchy, doesn't always work
  • Extremely slow to open or doesn't open at all
  • Constant beeping sound when open in background
  • Automatically disconnects Bluetooth devices
  • Massive battery drain when open in background
  • Beeping continuously when in the background
  • Audio quality on the page getting worse
  • Interface bugs
  • Destroys battery life
  • Disconnects Bluetooth and only plays through phone
  • Sits there and beeps, requires force close
  • Constant soft beeping noise
  • Stops Bluetooth streaming
  • Radio streaming is very hit and miss
  • Push to talk doesn't work on iPhone SE
  • Constantly runs in background despite settings
  • Greatly reduced battery life on iPhone
  • App killing phone battery
  • Latest version using crazy amount of battery
  • Runs constantly in the background after opening and closing
  • Map doesn't work
  • Notifications don't appear
  • Chat function inaccurate
  • Cannot see teammates responding
  • Incidents do not appear on live feed or archive
  • Slow and malfunctions
  • Constantly freezing
  • Demo not working
  • App not working
  • Freezes when trying to sign up
  • No dispatch audio with last update

Requested features

6 requests
  • 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
Show 1 more
  • Reminder to set availability daily

Fire Pump Calc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Who's Responding?

No in-app purchases

None

Fire Pump Calc

No in-app purchases

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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