# Joint MO vs Panic Alarm System

Joint MO and Panic Alarm System are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Joint MO ships an update every 2 weeks, Panic Alarm System fortnightly. Both last shipped on October 18, 2026.

## The numbers

| Metric | Joint MO | Panic Alarm System |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Size | 102 MB | 29 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SHENZHEN JOINT TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1070842011) | [PHCC](https://appshunter.io/developer/1268503629) |

## What reviewers say

### Joint MO

[App page](https://appshunter.io/ios/app/joint-mo/id1558258620)

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

**In-app purchases:** none


### Panic Alarm System

[App page](https://appshunter.io/ios/app/panic-alarm-system/id6618140991)

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

**In-app purchases:** none


## Frequently asked questions

### Is Joint MO free?

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

### Is Panic Alarm System free?

Panic Alarm System is free to download, with no in-app purchases.

### Do Joint MO or Panic Alarm System have ads?

Neither Joint MO nor Panic Alarm System shows ads.

### Which is updated more often, Joint MO or Panic Alarm System?

Joint MO ships an update every 2 weeks, and Panic Alarm System fortnightly. Most recently, Joint MO was updated on October 18, 2026 and Panic Alarm System on October 18, 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.*