Comparison

Crash Calc vs Response for FirstNet

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

Head to head
About

Crash Calc

This app provides essential formulas for traffic accident reconstruction, accessible on your mobile device. It offers calculations for drag factors, speed, kinetic energy, and more, with both US and Metric units. Save your results directly on your phone, eliminating the need to return to the office.

Highlights
  • Traffic accident reconstruction formulas
  • US (Imperial) and Metric measurements
  • Drag factor calculations
  • Speed and momentum calculations
  • Kinetic energy and force calculations
  • Slope indicator for roadways
  • Save results on phone
Features
Read full description

Crash Calc is a subscription based application that contains a collection of the most commonly used formulas for traffic accident reconstruction. Available in both US (Imperial) and Metric measurements. Easily calculate your results and save them for your files, all done right on your phone. Never have to wait to get back to the office again. With your monthly or yearly subscription you will find Crash Calc is broken down into seven logical categories of formulas. • Drag Factors – Calculate your drag factors by several different ways then adjust for braking, slope and super-elevation. • Speed – Includes speed conversation to velocity, speed formulas and then momentum of both in-line crashes as well as angular crashes. • Time-Distance-Velocity – Explore the relationship between the three variables. • Kinetic Energy – Calculate the energy present during a crash and force required to produce damage. Includes KE formulas, Vector Sum Analysis and Crush formulas. • Center-of-Mass, Radius, Critical Speed and Roll-Over – Grouped together to easily move from one formula to the next. • Airborne – Calculate speed required to travel from takeoff to landing • Miscellaneous section includes a Pedestrian formula, Motorcycle formulas and Swerve to Avoid formula • Slope Indicator – Use this feature to easily find the slope of the roadway in question. Simply place your phone down on the roadway (or takeoff angle) in the direction of travel and instantly read the slope on your phone. Subscription Details: - Crash Calc is a subscription based app that provides all of the most commonly used formulas in crash reconstruction. - It is available for $3.99/Monthly or $39.99/Annually - You can cancel online anytime - there is no cancellation fee. - Payment will be charged to iTunes Account at confirmation of purchase. - You can use the subscription on any device registered with your Apple account. - Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. - Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. - Cancellation will not go into effect until the end of the monthly or annually billing cycle. - Subscription may be managed by the user and turned off by going to the user's Account Settings after purchase. - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription. - Privacy Policy: https://crashcalc.com/privacy-policy.html - Terms of Service: https://crashcalc.com/terms-and-conditions.html * This fee reflects USA subscription cost. Fees can vary depending on User's country. We’d love to hear from you. Please visit us at crashcalc.com or drop us a line at support@crashcalc.com

About

Response for FirstNet

This platform enables teams to communicate, collaborate, and coordinate during daily operations and emergencies. It offers features for managing multiple operations, sharing information, and mobilizing teams with real-time location tracking and notifications.

Highlights
  • Overarching channels for segregating information
  • Real-time user location tracking
  • Interactive information sharing workspace
  • Emergency notification and team mobilization
  • Integrated to-do lists and task management
  • Push-to-talk (EPTT) integration
Features
Read full description

The Response for FirstNet platform is a mobile situational awareness platform for day-to-day and emergency operations allowing teams or user groups to communicate, collaborate, and coordinate. With our overarching channels feature, you can segregate information into operational containers and only allow invited users to share and view the data. Channels enable organizations to manage multiple operations, departments, sectors, or investigations at the same time. Within Response for FirstNet are three modules that can be purchased individually. Locate is the geospatial solution that provides real-time positions of users, static markers, and shapes combined with direction capability and traffic all displayed on the map interface. The Connect module is an interactive information sharing workspace where teams can share texts, videos, whiteboards, documents, audio files, and photographs. Annotate and draw on all items and integrated to-do lists/task management. The Activate module is a very simple to use emergency notification and team mobilization tool. Users can accept or decline activation and get turn-by-turn directions to the incident as well as necessary details. Lastly, we integrate leading cellular EPTT (push to talk) solutions so that calls can be made directly from within Response. Call us for more details.

Screenshots

Crash Calc4 screens
Response for FirstNet4 screens

Verdict

The call

The clearest difference is rating: Response for FirstNet at 4.8 against Crash Calc's 3.7. Response for FirstNet also leads on in-app purchases (none vs 4) and ratings volume (9 vs 3). Crash Calc's advantage is update cadence (monthly vs every 2 months) and iOS requirement (12.1 vs 15.0). On price, ads and device support 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. Crash Calc sells 4 in-app purchases, starting at $3.99 per month. Response for FirstNet asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Response for FirstNet holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively.

UpkeepUpdate frequency

Crash Calc ships an update monthly, Response for FirstNet every 2 months. The most recent releases landed on September 17, 2026 and October 10, 2026 respectively.

Scorecard6 real differences · 4 level
Crash Calc versus Response for FirstNet: the parameters behind the verdict, then further details
ParameterCrash CalcResponse for FirstNet
PriceFreeFree
Rating3.7 (3 ratings)4.8 (9 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings39 — better
Update frequencyMonthly — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.1 — better15.0
Further details — not scored
Size29 MB142 MB
Age rating4+4+
DeveloperCoastal Crash Consultants, LLCIntrepid Networks LLC

Customer experience

Crash Calc

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Response for FirstNet

All ratings9 ratings
Positive88.9%
Neutral11.1%
Negative0.0%

In-app purchases

4 purchases

Crash Calc

Subscriptions4
  • Crash Calc (Monthly)14 Days trial$3.991 Month
  • Crash_Calc_Monthly14 Days trial$3.991 Month
  • Crash Calc (Yearly)14 Days trial$39.991 Year
Show 1 more
  • Crash Calc Yearly14 Days trial$39.991 Year
None

Response for FirstNet

No in-app purchases

Questions

Is Crash Calc free?
Crash Calc is free to download, with in-app purchases available.
Is Response for FirstNet free?
Response for FirstNet is free to download, with no in-app purchases.
Which has better reviews, Crash Calc or Response for FirstNet?
Response for FirstNet is rated higher. Crash Calc averages 3.7 out of 5 from 3 ratings, while Response for FirstNet averages 4.8 from 9 ratings.
Do Crash Calc or Response for FirstNet have ads?
Neither Crash Calc nor Response for FirstNet shows ads.
Which is updated more often, Crash Calc or Response for FirstNet?
Crash Calc ships an update monthly, and Response for FirstNet every 2 months. Most recently, Crash Calc was updated on September 17, 2026 and Response for FirstNet on October 10, 2026.

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