# FireSync Shift Calendar vs NJIAAI

The clearest difference is update cadence: FireSync Shift Calendar at every 2 months against NJIAAI's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FireSync Shift Calendar ships an update every 2 months, NJIAAI every 10 months. The most recent releases landed on October 21, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | FireSync Shift Calendar | NJIAAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (9.1K ratings)](https://appshunter.io/ios/app/firesync-shift-calendar/id811674374/reviews)** | — |
| Number of ratings | **9.1K** | — |
| Positive reviews | 69.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Paid | — |
| Size | 176 MB | 36 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ForceReadiness.com](https://appshunter.io/developer/412513833) | [Results at Hand Software LLC](https://appshunter.io/developer/669416687) |

## What reviewers say

### FireSync Shift Calendar

[App page](https://appshunter.io/ios/app/firesync-shift-calendar/id811674374)

This app is a comprehensive calendar designed for firefighters, offering robust shift tracking, event management, and cloud integration. It allows users to manage trades, overtime, and personal events, with features like CertTracker and Expenditure tracking. It also syncs with other calendars and devices for seamless organization.

**Highlights:** Firefighter shift schedule tracking, Event management (trades, overtime, personal), Cloud integration with FireSync Enterprise™, CertTracker and Expenditure tracking, Customizable shift editor, Year and month calendar views, Report generation and emailing

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Share capable
- 👍 Perfect setup
- 👍 User friendly and simple
- 👍 Easy to use
- 👍 Convenient

**What reviewers complain about**

- 🐛 Randomly deletes events
- 🔒 Trouble with calendar access
- 🐛 Holiday icon disappeared
- 🐛 Erased all info
- 🐛 Verification not working

**Reported bugs**

- Randomly deletes events
- Trouble with calendar access
- Holiday icon disappeared
- Erased all info
- Verification not working

**Requested features**

- Color customization for days
- Shift designation by number
- Custom FLSA start/end dates
- Customizable pay days
- Shift trade feature


### NJIAAI

[App page](https://appshunter.io/ios/app/njiaai/id1644762209)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FireSync Shift Calendar free?

FireSync Shift Calendar is free to download, with no in-app purchases.

### Is NJIAAI free?

NJIAAI is free to download, with no in-app purchases.

### Do FireSync Shift Calendar or NJIAAI have ads?

Neither FireSync Shift Calendar nor NJIAAI shows ads.

### Which is updated more often, FireSync Shift Calendar or NJIAAI?

FireSync Shift Calendar ships an update every 2 months, and NJIAAI every 10 months. Most recently, FireSync Shift Calendar was updated on October 21, 2026 and NJIAAI on September 25, 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.*