Comparison

Gabriel Shock Test vs StJohnsCO Alerting

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

Head to head
About

Gabriel Shock Test

Diagnose your car's suspension performance using your mobile device. This tool helps assess shock absorber and strut condition for everyday driving, aiding in repair decisions and cost savings.

Highlights
  • Test shock absorbers and struts
  • Assess suspension performance
  • Generate customer reports
  • Access technical support
  • Look up vehicle parts
  • Find nearest store
Features
Read full description

Shock test is the new powerful tool for testing the performance of your shock absorbers or struts on your car. Using the capabilities of your mobile device, the test will measure how well the car’s suspension is handling everyday driving. Use the app to see whether you need to replace, and if you plan to work on your car to save money, have a good understanding of where your shocks lifespan is so you don’t get ripped off. This is a powerful tool for shop techs to carry in their pocket, be helpful to customers by providing them with an accurate report of their ride control condition. Email them the results to help them understand. Gabriel’s shock test app is scientifically based to give you much more information than what the good old bounce test could provide. Now you can get the answers you are looking for at the touch of a button right on your phone. · Test all four corners of your car to see what state the shocks/struts are in · Talk to the Gabriel Answerman to get your technical questions answered · Lookup the parts for your vehicle · Find the nearest store to pick them up · Email results to customers or to get a second opinion

About

StJohnsCO Alerting

This application provides advanced fire station alerting functionality for public safety answering points and fire/EMS facilities. It aims to reduce dispatch time and deliver critical information to first responders through tones and voice alerts. Optional add-ons and customization are available for enhanced field operations.

Highlights
  • State-of-the-art alerting functionality
  • Reliable dispatch for PSAPs and fire/EMS
  • Tones and voice alerts
  • Optional add-ons and customization
  • Companion mobile application
Read full description

Mach Alert is a full featured fire station alerting (FSA) solution designed to provide state of the art alerting functionality and reliability to public safety answering points (PSAP), fire and EMS facilities, and, with optional add-ons, to first responders in the field. Whether operating as a standalone system or via interface to a computer aided dispatch (CAD) product, Mach Alert is designed to minimize time spent dispatching at the 911 center and maximize the amount of critical information delivered to first responders when they need it most with tones, voice, and a robust catalog of add-ons and customization options. The Mach Alert Mobile Application is an optional companion for full Mach Alert FSA systems. Like functionality is only available with an associated services agreement.

Screenshots

Gabriel Shock Test4 screens
StJohnsCO Alerting4 screens

Verdict

The call

The clearest difference is rating: Gabriel Shock Test at 4.3 against StJohnsCO Alerting's 1.7. Gabriel Shock Test also leads on review sentiment (33% vs 25%). On price, ratings volume, update cadence and ads 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

Gabriel Shock Test holds the better App Store score, 4.3 against 1.7. Both are backed by a comparable volume of ratings — 4 and 7 respectively. Written reviews point the same way: 33% of Gabriel Shock Test's written reviews are positive against 25% of StJohnsCO Alerting's.

UpkeepUpdate frequency

Gabriel Shock Test ships an update every 12 months, StJohnsCO Alerting every 19 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 8 level
Gabriel Shock Test versus StJohnsCO Alerting: the parameters behind the verdict, then further details
ParameterGabriel Shock TestStJohnsCO Alerting
PriceFreeFree
Rating4.3 (4 ratings) — better1.7 (7 ratings)
Positive reviews33.3% of reviews — better25.0% of reviews
Number of ratings47 — better
Update frequencyEvery 12 months — betterEvery 19 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better12.0
Further details — not scored
Size133 MB68 MB
Age rating4+4+
DeveloperChad MonahanMach Alert Inc.

Customer experience

Gabriel Shock Test

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

StJohnsCO Alerting

All ratings7 ratings
Positive14.3%
Neutral0.0%
Negative85.7%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

In-app purchases

None

Gabriel Shock Test

No in-app purchases

None

StJohnsCO Alerting

No in-app purchases

Questions

Is Gabriel Shock Test free?
Gabriel Shock Test is free to download, with no in-app purchases.
Is StJohnsCO Alerting free?
StJohnsCO Alerting is free to download, with no in-app purchases.
Which has better reviews, Gabriel Shock Test or StJohnsCO Alerting?
Gabriel Shock Test is rated higher. Gabriel Shock Test averages 4.3 out of 5 from 4 ratings, while StJohnsCO Alerting averages 1.7 from 7 ratings.
Do Gabriel Shock Test or StJohnsCO Alerting have ads?
Neither Gabriel Shock Test nor StJohnsCO Alerting shows ads.
Which is updated more often, Gabriel Shock Test or StJohnsCO Alerting?
Gabriel Shock Test ships an update every 12 months, and StJohnsCO Alerting every 19 months. Most recently, Gabriel Shock Test was updated on November 2, 2026 and StJohnsCO Alerting on November 3, 2026.

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