Comparison

Shift Master Shift Calendar vs ActiveAlert

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

Head to head
About

Shift Master Shift Calendar

A highly customizable shift calendar designed for Firefighter, EMS, and Paramedic professionals. It supports up to four platoons or teams with flexible shift patterns up to 35 days long.

Highlights
  • Fully configurable shift calendar
  • Supports up to 4 platoons/teams
  • Single or first/second shift patterns
  • Shift rotation up to 35 days
  • Designed for Firefighter, EMS, Paramedic
Features
Read full description

Fully configurable Shift Calendar app for Firefighter, EMS and Paramedic Professionals. This app is now the flag ship app in the series and provides for full customization for up to 4 platoons/teams with single shift or first/second shift on a shift pattern rotation of up to 35 days in length.

About

ActiveAlert

This app provides essential call details directly on your smartphone, eliminating the need to manually record information or enter addresses while driving. It automatically maps alarm locations, facilitates real-time response coordination, and organizes past and current calls.

Highlights
  • Real-time call details on smartphone
  • Automatic alarm location mapping
  • Real-time response coordination map
  • Access photos and documents
  • Converts dispatch data
  • Manage past and current calls
Features
Read full description

ActiveAlert helps you respond to calls faster by getting the essential details right in your smartphone. No more copying down dispatch information or trying to enter an address while driving. - Uses Apple Push instead of SMS - Automatically maps alarm location - Coordinate response with others using real-time map - Access relevant photos and documents from your phone - Converts hard-to-read dispatch data into legible sections - Manage past and current calls

Screenshots

Shift Master Shift Calendar4 screens
ActiveAlert4 screens

Verdict

The call

The clearest difference is price: ActiveAlert at Free against Shift Master Shift Calendar's $1.99. ActiveAlert also leads on rating (4.1 vs 2.2) and update cadence (every 8 days vs every 5 weeks). Shift Master Shift Calendar's advantage is chart position (#128 vs unranked) and iOS requirement (9.0 vs 15.6). On ads, in-app purchases and monetization model 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

ActiveAlert is free to download; Shift Master Shift Calendar costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ActiveAlert holds the better App Store score, 4.1 against 2.2. That said, the two scores are not equally well evidenced: ActiveAlert has 738 ratings behind it against 25, so its average is the more settled of the two. Written reviews point the same way: 47% of Shift Master Shift Calendar's written reviews are positive against 55% of ActiveAlert's.

UpkeepUpdate frequency

Shift Master Shift Calendar ships an update every 5 weeks, ActiveAlert every 8 days. The most recent releases landed on September 26, 2026 and September 29, 2026 respectively.

Scorecard8 real differences · 3 level
Shift Master Shift Calendar versus ActiveAlert: the parameters behind the verdict, then further details
ParameterShift Master Shift CalendarActiveAlert
Price$1.99Free — better
Rating2.2 (25 ratings)4.1 (738 ratings) — better
Positive reviews46.9% of reviews55.2% of reviews — better
Number of ratings25738 — better
Update frequencyEvery 5 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#128 — better—
DevicesiPhone, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS9.0 — better15.6
Further details — not scored
Size2 MB58 MB
Age rating4+4+
DeveloperGil EstesActive911

Customer experience

Shift Master Shift Calendar

All ratings25 ratings
Positive32.0%
Neutral0.0%
Negative68.0%
Written reviews98 reviews
Positive46.9%
Neutral4.1%
Negative49.0%

ActiveAlert

All ratings738 ratings
Positive75.9%
Neutral9.5%
Negative14.6%
Written reviews134 reviews
Positive55.2%
Neutral17.9%
Negative26.9%

User reviews

Shift Master Shift Calendar

From 25 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 👍 Works for various shift rotations
  • 👍 Good for long-term planning
  • 👍 Customizable colors
  • 👍 Prompt customer support (historically)

Room to improve

  • 🐛 App won't open/load
  • 🐛 Crashes frequently
  • 🐛 Lost data after updates
  • 🐛 Confusing setup/not user-friendly
  • 🐛 Incompatible with iOS updates

ActiveAlert

From 738 App Store ratings

What we love

  • 🚀 Constant map updates
  • 🚀 Reliable app
  • 👍 Helpful information
  • 👍 Useful features like map markers and personnel details
  • 👍 Customizable alert tones

Room to improve

  • 🐛 Repetitive notifications that don't provide new information
  • 🐛 Inability to delete multiple alerts at once
  • 🐛 Inconsistent theme colors
  • 🐛 Slow loading times and lags
  • 🐛 Apple Watch compatibility issues

Bugs and requests

Shift Master Shift Calendar

Reported bugs

15 issues
  • App does not open
  • App crashes frequently
  • App disappeared after iOS update
  • Calendar days are purple/won't change color
  • Erases notes and resets shift days after updates
Show 10 more
  • Customized dates deleted after update
  • Buttons along the bottom don't function without reboot
  • Shift colors change with the month
  • App shuts down occasionally
  • App fails to open after iOS update
  • Shifts are off after January 1st
  • App crashes on opening
  • App doesn't work with iOS 6/10/11
  • Calendar places shifts incorrectly
  • Setup key closes app

Requested features

7 requests
  • Update for newest iOS versions
  • Sync with iPhone calendar
  • Add appointment scheduler with reminders
  • Display shift letters across the top
  • Enter half color/symbol for partial OT shifts
Show 2 more
  • Make UI less cluttered and more visually appealing
  • Ability to load on iPad

ActiveAlert

Reported bugs

5 issues
  • Continuous paging/re-alerting issues
  • Inability to disable repeat paging
  • Alerts not working when phone is on silent
  • Crashing and freezing issues
  • Inconsistent behavior when switching between apps

Requested features

8 requests
  • Favorites or saved calls list
  • Ability to adjust alert volume
  • More alert tone options
  • Improved map routing and integration
  • Customizable themes and color schemes
Show 3 more
  • Ability to mark on-duty/off-duty status with one button
  • Improved call details formatting and organization
  • Widgets and CarPlay integration

In-app purchases

None

Shift Master Shift Calendar

No in-app purchases

None

ActiveAlert

No in-app purchases

Questions

Is Shift Master Shift Calendar free?
Shift Master Shift Calendar costs $1.99, with no in-app purchases.
Is ActiveAlert free?
ActiveAlert is free to download, with no in-app purchases.
Which has better reviews, Shift Master Shift Calendar or ActiveAlert?
ActiveAlert is rated higher. Shift Master Shift Calendar averages 2.2 out of 5 from 25 ratings, while ActiveAlert averages 4.1 from 738 ratings.
Do Shift Master Shift Calendar or ActiveAlert have ads?
Neither Shift Master Shift Calendar nor ActiveAlert shows ads.
Which is updated more often, Shift Master Shift Calendar or ActiveAlert?
Shift Master Shift Calendar ships an update every 5 weeks, and ActiveAlert every 8 days. Most recently, Shift Master Shift Calendar was updated on September 26, 2026 and ActiveAlert on September 29, 2026.

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