# Alpha Tracker Mobile vs Fire Door Checker

The clearest difference is update cadence: Alpha Tracker Mobile at every 4 weeks against Fire Door Checker's every 4 months. Alpha Tracker Mobile also leads on iOS requirement (13.0 vs 15.6). 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.

Alpha Tracker Mobile ships an update every 4 weeks, Fire Door Checker every 4 months. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Alpha Tracker Mobile | Fire Door Checker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Size | 20 MB | 7 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Start Software](https://appshunter.io/developer/1188622857) | [M&W Media Limited](https://appshunter.io/developer/1097809906) |

## What reviewers say

### Alpha Tracker Mobile

[App page](https://appshunter.io/ios/app/alpha-tracker-mobile/id1188622858)

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

**In-app purchases:** none


### Fire Door Checker

[App page](https://appshunter.io/ios/app/fire-door-checker/id6747179603)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Alpha Tracker Mobile free?

Alpha Tracker Mobile is free to download, with no in-app purchases.

### Is Fire Door Checker free?

Fire Door Checker is free to download, with no in-app purchases.

### Do Alpha Tracker Mobile or Fire Door Checker have ads?

Neither Alpha Tracker Mobile nor Fire Door Checker shows ads.

### Which is updated more often, Alpha Tracker Mobile or Fire Door Checker?

Alpha Tracker Mobile ships an update every 4 weeks, and Fire Door Checker every 4 months. Most recently, Alpha Tracker Mobile was updated on October 4, 2026 and Fire Door Checker on October 16, 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.*