# シーロック vs chatlock

The clearest difference is update cadence: シーロック at every 3 weeks against chatlock's every 4 months. 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.

シーロック ships an update every 3 weeks, chatlock every 4 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | シーロック | chatlock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 37 MB | 185 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [シーテック株式会社](https://appshunter.io/developer/1543368811) | [CHAT LOCK K.K](https://appshunter.io/developer/1782829681) |

## What reviewers say

### シーロック

[App page](https://appshunter.io/ios/app/id1525488624)

**Features:** macOS Compatibility

**In-app purchases:** none


### chatlock

[App page](https://appshunter.io/ios/app/chatlock/id6738942138)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is シーロック free?

シーロック is free to download, with no in-app purchases.

### Is chatlock free?

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

### Do シーロック or chatlock have ads?

Neither シーロック nor chatlock shows ads.

### Which is updated more often, シーロック or chatlock?

シーロック ships an update every 3 weeks, and chatlock every 4 months. Most recently, シーロック was updated on October 27, 2026 and chatlock on October 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.*