# Shift Master Shift Calendar vs IAFF Foundation Pro

The clearest difference is price: IAFF Foundation Pro at Free against Shift Master Shift Calendar's $1.99. IAFF Foundation Pro also leads on rating (4.7 vs 2.2) and ratings volume (5.9K vs 25). Shift Master Shift Calendar's advantage is in-app purchases (none vs 3) and update cadence (every 5 weeks vs every 5 months). On review sentiment, ads and device support there is nothing between them.

IAFF Foundation Pro is free to download; Shift Master Shift Calendar costs $1.99 up front. IAFF Foundation Pro sells 3 in-app purchases, starting at $6.99 per year. Shift Master Shift Calendar asks for nothing beyond the download.

IAFF Foundation Pro holds the better App Store score, 4.7 against 2.2. That said, the two scores are not equally well evidenced: IAFF Foundation Pro has 5.9K ratings behind it against 25, so its average is the more settled of the two. Written reviews complicate that: 47% of Shift Master Shift Calendar's written reviews are positive against 46% of IAFF Foundation Pro's, so the app with the better star average is not the one people write more warmly about.

Shift Master Shift Calendar ships an update every 5 weeks, IAFF Foundation Pro every 5 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Shift Master Shift Calendar | IAFF Foundation Pro |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [2.2 (25 ratings)](https://appshunter.io/ios/app/shift-master-shift-calendar/id385155631/reviews) | **[4.7 (5.9K ratings)](https://appshunter.io/ios/app/iaff-foundation-pro-calendar/id412401290/reviews)** |
| Number of ratings | 25 | **5.9K** |
| Positive reviews | **46.9% of reviews** | 45.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | **Free** | Subscription |
| Best chart rank | **#42** | — |
| Size | 2 MB | 17 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gil Estes](https://appshunter.io/developer/349882768) | [Pro-Calendar](https://appshunter.io/developer/406461032) |

## What reviewers say

### Shift Master Shift Calendar

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

**Currently charting:** #42 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


### IAFF Foundation Pro

[App page](https://appshunter.io/ios/app/iaff-foundation-pro-calendar/id412401290)

This app helps firefighters manage their complex work schedules and track important job-related information. It offers custom color-coded shift scheduling, accrual tracking for time off, and incident logging for exposures.

**Highlights:** Custom color-coded shift schedules, Track real-time balance accruals, Log medical, fire, and hazmat incidents, Set recurring appointments with alarms, Automatic accrual rate adjustments

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 12-Month Subscription (auto) | $6.99 | per year |
| 12-Month Subscription | $6.99 | one-time |
| 12 month test | $6.99 | one-time |

**What reviewers like**

- ⭐ Great calendar app
- 📅 Helpful for shift tracking
- 🗓️ Customizable schedule setup
- 💻 Works well on multiple devices

**What reviewers complain about**

- 🐛 Frequent crashes and bugs
- 💰 Expensive subscription model
- 🔁 Repeated requests to renew subscription
- 🔒 Poor customer support and communication

**Reported bugs**

- App crashes after updates
- Subscription issues and lost data
- Compatibility problems with newer iOS versions
- Calendar entries not syncing properly

**Requested features**

- Ability to delete/edit events easily
- Sync across multiple devices
- Better vacation/leave tracking
- Improved user interface and aesthetics


## Frequently asked questions

### Is Shift Master Shift Calendar free?

Shift Master Shift Calendar costs $1.99, with no in-app purchases.

### Is IAFF Foundation Pro free?

IAFF Foundation Pro is free to download, with in-app purchases available.

### Which has better reviews, Shift Master Shift Calendar or IAFF Foundation Pro?

IAFF Foundation Pro is rated higher. Shift Master Shift Calendar averages 2.2 out of 5 from 25 ratings, while IAFF Foundation Pro averages 4.7 from 5.9K ratings.

### Do Shift Master Shift Calendar or IAFF Foundation Pro have ads?

Neither Shift Master Shift Calendar nor IAFF Foundation Pro shows ads.

### Which is updated more often, Shift Master Shift Calendar or IAFF Foundation Pro?

Shift Master Shift Calendar ships an update every 5 weeks, and IAFF Foundation Pro every 5 months. Most recently, Shift Master Shift Calendar was updated on October 27, 2026 and IAFF Foundation Pro on October 28, 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.*