# 戸締り・火の元チェッカー vs Locking Check

The clearest difference is update cadence: Locking Check at every 6 weeks against 戸締り・火の元チェッカー's every 12 months. Locking Check also leads on iOS requirement (14.0 vs 16.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 戸締り・火の元チェッカー sells 2 one-off in-app purchases and Locking Check sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

戸締り・火の元チェッカー ships an update every 12 months, Locking Check every 6 weeks. The most recent releases landed on September 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | 戸締り・火の元チェッカー | Locking Check |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 12 months | **Every 6 weeks** |
| Size | 9 MB | 5 MB |
| Requires iOS | 16.0 | **14.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [takeshi inoue](https://appshunter.io/developer/1452042026) | [Atsushi Ezaki](https://appshunter.io/developer/1099847684) |

## What reviewers say

### 戸締り・火の元チェッカー

[App page](https://appshunter.io/ios/app/id1463762505)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $0.49 | one-time |
| 機能追加 | $0.49 | one-time |


### Locking Check

[App page](https://appshunter.io/ios/app/locking-check/id1523162174)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide Ads | $1.99 | one-time |


## Frequently asked questions

### Is 戸締り・火の元チェッカー free?

戸締り・火の元チェッカー is free to download, with in-app purchases available.

### Is Locking Check free?

Locking Check is free to download, with in-app purchases available.

### Do 戸締り・火の元チェッカー or Locking Check have ads?

Both 戸締り・火の元チェッカー and Locking Check show ads.

### Which is updated more often, 戸締り・火の元チェッカー or Locking Check?

戸締り・火の元チェッカー ships an update every 12 months, and Locking Check every 6 weeks. Most recently, 戸締り・火の元チェッカー was updated on September 1, 2026 and Locking Check on September 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.*