# chatlock vs Kiro Book

The clearest difference is update cadence: Kiro Book at fortnightly against chatlock's every 4 months. chatlock's advantage is iOS requirement (13.0 vs 16.0). 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.

chatlock ships an update every 4 months, Kiro Book fortnightly. The most recent releases landed on October 17, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | chatlock | Kiro Book |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/kiro-book/id6760916222/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 185 MB | 2 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CHAT LOCK K.K](https://appshunter.io/developer/1782829681) | [zheng wei](https://appshunter.io/developer/1884262733) |

## What reviewers say

### chatlock

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Kiro Book

[App page](https://appshunter.io/ios/app/kiro-book/id6760916222)

This app helps you capture and curate urban discoveries, turning places into personal journal pages. It offers a minimalist recording experience with automatic location tagging and photo organization to create an aesthetic life archive.

**Highlights:** Turn places into journal pages, Minimalist recording experience, Automatic location tagging, Real-time sharing, Aesthetic footprint map, Curated life archive

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

**In-app purchases:** none


## Frequently asked questions

### Is chatlock free?

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

### Is Kiro Book free?

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

### Do chatlock or Kiro Book have ads?

Neither chatlock nor Kiro Book shows ads.

### Which is updated more often, chatlock or Kiro Book?

chatlock ships an update every 4 months, and Kiro Book fortnightly. Most recently, chatlock was updated on October 17, 2026 and Kiro Book on October 2, 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.*