# FireSync Shift Calendar vs Check The Dose

The clearest difference is monetization model: Check The Dose at free against FireSync Shift Calendar's paid. Check The Dose also leads on review sentiment (100% vs 69%) and rating (5.0 vs 4.8). FireSync Shift Calendar's advantage is ratings volume (9.1K vs 4). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Check The Dose holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: FireSync Shift Calendar has 9.1K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 69% of FireSync Shift Calendar's written reviews are positive against 100% of Check The Dose's.

FireSync Shift Calendar ships an update every 2 months, Check The Dose every 5 weeks. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | FireSync Shift Calendar | Check The Dose |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (9.1K ratings)](https://appshunter.io/ios/app/firesync-shift-calendar/id811674374/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/check-the-dose/id1388403466/reviews)** |
| Number of ratings | **9.1K** | 4 |
| Positive reviews | 69.2% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 176 MB | 117 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [ForceReadiness.com](https://appshunter.io/developer/412513833) | [Check The Dose](https://appshunter.io/developer/1388403465) |

## 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


### Check The Dose

[App page](https://appshunter.io/ios/app/check-the-dose/id1388403466)

This app provides customizable, automated medication and equipment dosing guides for pre-hospital and hospital providers. It offers access to updated databases, checklists, reference materials, and contact lists, with features for drip rate confirmation and filtered medication views.

**Highlights:** Customizable automated dosing, Web-based database updates, Upload checklists and reference materials, Contact list with door codes, Drip rate confirmation, Filtered medication views

**Features:** macOS Compatibility, Vision Pro support

**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 Check The Dose free?

Check The Dose is free to download, with no in-app purchases.

### Which has better reviews, FireSync Shift Calendar or Check The Dose?

Check The Dose is rated higher. FireSync Shift Calendar averages 4.8 out of 5 from 9.1K ratings, while Check The Dose averages 5.0 from 4 ratings.

### Do FireSync Shift Calendar or Check The Dose have ads?

Neither FireSync Shift Calendar nor Check The Dose shows ads.

### Which is updated more often, FireSync Shift Calendar or Check The Dose?

FireSync Shift Calendar ships an update every 2 months, and Check The Dose every 5 weeks. Most recently, FireSync Shift Calendar was updated on October 20, 2026 and Check The Dose on October 3, 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.*