# pomera Link vs しまった？ 鍵・電気の消し忘れ防止

The clearest difference is ads: pomera Link at none against しまった？ 鍵・電気の消し忘れ防止's shown. pomera Link also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, 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.

pomera Link ships an update every 7 months, しまった？ 鍵・電気の消し忘れ防止 every 5 months. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | pomera Link | しまった？ 鍵・電気の消し忘れ防止 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/pomera-link/id371963393/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 45.8% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 8 MB | 8 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KING JIM CO.,LTD.](https://appshunter.io/developer/371963396) | [Takumi Nakamura](https://appshunter.io/developer/1847153717) |

## What reviewers say

### pomera Link

[App page](https://appshunter.io/ios/app/pomera-link/id371963393)

Transfer text data from your Pomera device to your iPhone via QR code or Wi-Fi. Edit, convert to PDF, or send text via email. Supports multiple QR code reading and FlashAir transfers for specific models.

**Highlights:** QR Code data transfer, Wi-Fi connection for DM250, FlashAir transfer for DM100/DM30, Text editing and PDF conversion, Email and cloud integration, History with data protection

**In-app purchases:** none


### しまった？ 鍵・電気の消し忘れ防止

[App page](https://appshunter.io/ios/app/id6767480624)

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

**In-app purchases:** none


## Frequently asked questions

### Is pomera Link free?

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

### Is しまった？ 鍵・電気の消し忘れ防止 free?

しまった？ 鍵・電気の消し忘れ防止 is free to download, with no in-app purchases.

### Do pomera Link or しまった？ 鍵・電気の消し忘れ防止 have ads?

しまった？ 鍵・電気の消し忘れ防止 shows ads; pomera Link does not.

### Which is updated more often, pomera Link or しまった？ 鍵・電気の消し忘れ防止?

pomera Link ships an update every 7 months, and しまった？ 鍵・電気の消し忘れ防止 every 5 months. Most recently, pomera Link was updated on November 1, 2026 and しまった？ 鍵・電気の消し忘れ防止 on October 31, 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.*