# Shift Master Shift Calendar vs ActiveAlert

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.

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.

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.

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.

## The numbers

| Metric | Shift Master Shift Calendar | ActiveAlert |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [2.2 (25 ratings)](https://appshunter.io/ios/app/shift-master-shift-calendar/id385155631/reviews) | **[4.1 (738 ratings)](https://appshunter.io/ios/app/activealert/id525979138/reviews)** |
| Number of ratings | 25 | **738** |
| Positive reviews | 46.9% of reviews | **55.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 8 days** |
| Monetization | Free | Free |
| Best chart rank | **#128** | — |
| Size | 2 MB | 58 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Gil Estes](https://appshunter.io/developer/349882768) | [Active911](https://appshunter.io/developer/525979141) |

## What reviewers say

### Shift Master Shift Calendar

[App page](https://appshunter.io/ios/app/shift-master-shift-calendar/id385155631)

**Currently charting:** #128 Top Paid · Productivity (US App Store)

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:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

- 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

**Requested features**

- 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


### ActiveAlert

[App page](https://appshunter.io/ios/app/activealert/id525979138)

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:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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**

- Favorites or saved calls list
- Ability to adjust alert volume
- More alert tone options
- Improved map routing and integration
- Customizable themes and color schemes


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*