# Trigger Locker(業務用トリガーロッカー) vs M

The clearest difference is iOS requirement: M at 12.0 against Trigger Locker(業務用トリガーロッカー)'s 15.6. 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.

Trigger Locker(業務用トリガーロッカー) ships an update every 6 weeks, M every 2 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Trigger Locker(業務用トリガーロッカー) | M |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Size | 18 MB | 23 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SPACER Co., Ltd.](https://appshunter.io/developer/1052521521) | [Shenzhen Smart Display Vision Software Technology Co., Ltd](https://appshunter.io/developer/1798929931) |

## What reviewers say

### Trigger Locker(業務用トリガーロッカー)

[App page](https://appshunter.io/ios/app/trigger-locker/id1436581792)

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

**In-app purchases:** none


### M

[App page](https://appshunter.io/ios/app/m-sign/id1672515454)

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

**In-app purchases:** none


## Frequently asked questions

### Is Trigger Locker(業務用トリガーロッカー) free?

Trigger Locker(業務用トリガーロッカー) is free to download, with no in-app purchases.

### Is M free?

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

### Do Trigger Locker(業務用トリガーロッカー) or M have ads?

Neither Trigger Locker(業務用トリガーロッカー) nor M shows ads.

### Which is updated more often, Trigger Locker(業務用トリガーロッカー) or M?

Trigger Locker(業務用トリガーロッカー) ships an update every 6 weeks, and M every 2 months. Most recently, Trigger Locker(業務用トリガーロッカー) was updated on October 7, 2026 and M on September 28, 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.*