# 工事写真台帳 vs Reservation Book

The clearest difference is in-app purchases: 工事写真台帳 at none against Reservation Book's 1. Reservation Book's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 26.2). On price, update cadence and ads there is nothing between them.

Both are free to download. Reservation Book sells 1 one-off in-app purchase. 工事写真台帳 asks for nothing beyond the download.

工事写真台帳 ships an update every 6 days, Reservation Book every 3 days. The most recent releases landed on October 25, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 工事写真台帳 | Reservation Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | **Every 3 days** |
| Size | 5 MB | 61 MB |
| Requires iOS | 26.2 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takuya Iwamoto](https://appshunter.io/developer/1881963303) | [Moeki Kozawa](https://appshunter.io/developer/1770452138) |

## What reviewers say

### 工事写真台帳

[App page](https://appshunter.io/ios/app/kojilog/id6759963772)

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

**In-app purchases:** none


### Reservation Book

[App page](https://appshunter.io/ios/app/reservation-book/id6811507286)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro版（買い切り） | $4.99 | one-time |


## Frequently asked questions

### Is 工事写真台帳 free?

工事写真台帳 is free to download, with no in-app purchases.

### Is Reservation Book free?

Reservation Book is free to download, with in-app purchases available.

### Do 工事写真台帳 or Reservation Book have ads?

Neither 工事写真台帳 nor Reservation Book shows ads.

### Which is updated more often, 工事写真台帳 or Reservation Book?

工事写真台帳 ships an update every 6 days, and Reservation Book every 3 days. Most recently, 工事写真台帳 was updated on October 25, 2026 and Reservation Book on November 6, 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.*