# HZ Alert vs Five Minute Mystery Timer

The clearest difference is update cadence: HZ Alert at every 3 months against Five Minute Mystery Timer's every 10 months. HZ Alert also leads on iOS requirement (13.0 vs 15.0). 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.

HZ Alert ships an update every 3 months, Five Minute Mystery Timer every 10 months. The most recent releases landed on October 26, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | HZ Alert | Five Minute Mystery Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (18 ratings)](https://appshunter.io/ios/app/five-minute-mystery-timer/id1485145482/reviews)** |
| Number of ratings | — | **18** |
| Positive reviews | — | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 10 months |
| Monetization | — | Free |
| Size | 16 MB | 99 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Hour-Zero Alert](https://appshunter.io/developer/1466124458) | [Wiggles 3D](https://appshunter.io/developer/468113617) |

## What reviewers say

### HZ Alert

[App page](https://appshunter.io/ios/app/hz-alert/id1466124459)

**Features:** macOS Compatibility

**In-app purchases:** none


### Five Minute Mystery Timer

[App page](https://appshunter.io/ios/app/five-minute-mystery-timer/id1485145482)

This timer app supports a real-time, cooperative tabletop game. It tracks remaining time for solving mysteries and offers encouraging reminders from the museum's curator.

**Highlights:** Real-time timer, Cooperative game support, Mystery solving countdown, Encouraging reminders, Curator character interaction

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

**In-app purchases:** none


## Frequently asked questions

### Is HZ Alert free?

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

### Is Five Minute Mystery Timer free?

Five Minute Mystery Timer is free to download, with no in-app purchases.

### Do HZ Alert or Five Minute Mystery Timer have ads?

Neither HZ Alert nor Five Minute Mystery Timer shows ads.

### Which is updated more often, HZ Alert or Five Minute Mystery Timer?

HZ Alert ships an update every 3 months, and Five Minute Mystery Timer every 10 months. Most recently, HZ Alert was updated on October 26, 2026 and Five Minute Mystery Timer on October 20, 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.*