Shift Master Shift Calendar vs FirstNet Single Sign
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.
FirstNet Single Sign
Streamline access to critical public safety applications. Log in once to gain immediate entry to essential tools, saving valuable time and enhancing operational efficiency for verified FirstNet users.
- Single sign-on for multiple apps
- Quick access to FirstNet Assist
- Immediate access to FirstNet Central
- Enhanced security
- Time-saving login process
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As a FirstNet public safety professional, you know that every second counts. So why waste time? Save seconds. Save lives. FirstNet SSO lets you focus on work, so you don't have to log in over and over for network and app access. Simply enter your credentials in FirstNet SSO when required to get immediate access to: • FirstNet Assist • FirstNet Central FirstNet SSO is available for use by verified FirstNet users. Requirements for use include: • Valid FirstNet ID • FirstNet Ready™ device or FirstNet Capable® device • FirstNet SIM (FirstNet SIMS are included with FirstNet Ready™ devices.)
Screenshots
Verdict
The clearest difference is price: FirstNet Single Sign at Free against Shift Master Shift Calendar's $1.99. FirstNet Single Sign also leads on ratings volume (132 vs 25). Shift Master Shift Calendar's advantage is review sentiment (47% vs 2%) and rating (2.2 vs 1.3). On ads, in-app purchases, monetization model 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
FirstNet Single Sign 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 1.3. That said, the two scores are not equally well evidenced: FirstNet Single Sign has 132 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 2% of FirstNet Single Sign's.
Shift Master Shift Calendar ships an update every 5 weeks, FirstNet Single Sign every 3 months. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.
| Parameter | Shift Master Shift Calendar | FirstNet Single Sign |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 2.2 (25 ratings) — better | 1.3 (132 ratings) |
| Positive reviews | 46.9% of reviews — better | 2.1% of reviews |
| Number of ratings | 25 | 132 — better |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 2 MB | 11 MB |
| Age rating | 4+ | 17+ |
| Developer | Gil Estes | AT&T Services, Inc. |
Customer experience
Shift Master Shift Calendar
FirstNet Single Sign
User reviews
Shift Master Shift Calendar
From 25 App Store ratingsWhat 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
FirstNet Single Sign
From 132 App Store ratingsRoom to improve
- ❌ Prevents login
- ❌ Stuck in loops
- ❌ No push notifications
- ❌ Unreliable authentication
- ❌ Difficult to use
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
FirstNet Single Sign
Reported bugs
24 issues- 2 factor authentication stuck in a loop
- App does not send push notifications
- Single sign on not in notifications list
- App does not send signal back to website
- Multiple error messages that don't make sense
Show 19 moreShow fewer
- Cannot enable push notifications for single sign on
- App doesn't work
- Keeps saying something is wrong
- FirstNet single sign on isn't working
- Cannot log in to the app
- SSO doesn't sync or acknowledge sign on
- App logs itself in but website never syncs
- Cannot access account because phone number is suspended
- Authentication server shows phone is locked
- App doesn't allow push notifications from app settings
- Cannot access account now
- App does nothing
- Cannot log in
- Interface is trash and not intuitive
- Does not work
- Login doesn't take advantage of password vault integration
- SSO doesn't work after switching back and forth
- App only acquires email and has user set up password and PIN
- Cannot log in with Face ID
In-app purchases
Shift Master Shift Calendar
No in-app purchases
FirstNet Single Sign
No in-app purchases
Questions
Is Shift Master Shift Calendar free?
Is FirstNet Single Sign free?
Which has better reviews, Shift Master Shift Calendar or FirstNet Single Sign?
Do Shift Master Shift Calendar or FirstNet Single Sign have ads?
Which is updated more often, Shift Master Shift Calendar or FirstNet Single Sign?
Other comparisons
