Shift Master Shift Calendar vs First Due Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
First Due Mobile
Receive instant incident notifications and navigate emergency scenes with advanced routing. Access integrated building data, pre-plans, and real-time unit tracking for enhanced situational awareness and team communication.
- Incident tracking and notification
- Emergency response routing
- Integrated building data
- Pre-incident planning and mapping
- Team chat and communication
- Live unit tracking
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First Due Mobile is finally here! Be notified, arrive safely and understand your scene like never before. First Due Mobile includes: -Incident tracking and notification -Emergency response specific routing -Integrated Assessor, Building Department and Fire Prevention data! -Quick size-up on every building -Detailed pre-plans on every building including residential! -Pre-Incident Planning & Mapping -Chat for easy communication with your team -Incident statusing and responding functionality -Live unit and team member tracking during incident
Screenshots
Verdict
The clearest difference is review sentiment: Shift Master Shift Calendar at 47% against First Due Mobile's 0%. Shift Master Shift Calendar also leads on rating (2.2 vs 1.6) and update cadence (every 5 weeks vs every 7 months). First Due Mobile's advantage is price (Free vs $1.99). On ratings volume, 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
First Due Mobile 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.
Shift Master Shift Calendar holds the better App Store score, 2.2 against 1.6. Both are backed by a comparable volume of ratings — 25 and 10 respectively. Written reviews point the same way: 47% of Shift Master Shift Calendar's written reviews are positive against 0% of First Due Mobile's.
Shift Master Shift Calendar ships an update every 5 weeks, First Due Mobile every 7 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.
| Parameter | Shift Master Shift Calendar | First Due Mobile |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 2.2 (25 ratings) — better | 1.6 (10 ratings) |
| Positive reviews | 46.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 25 — better | 10 |
| Update frequency | Every 5 weeks — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Best chart rank | #181 — better | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 224 MB |
| Age rating | 4+ | 4+ |
| Developer | Gil Estes | Locality Media, Inc. |
Customer experience
Shift Master Shift Calendar
First Due Mobile
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 moreShow fewer
- 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 moreShow fewer
- Make UI less cluttered and more visually appealing
- Ability to load on iPad
First Due Mobile
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Shift Master Shift Calendar
No in-app purchases
First Due Mobile
No in-app purchases
Questions
Is Shift Master Shift Calendar free?
Is First Due Mobile free?
Which has better reviews, Shift Master Shift Calendar or First Due Mobile?
Do Shift Master Shift Calendar or First Due Mobile have ads?
Which is updated more often, Shift Master Shift Calendar or First Due Mobile?
Other comparisons
