# SITEチャット vs GENCHO

The clearest difference is review sentiment: GENCHO at 57% against SITEチャット's 0%. GENCHO also leads on update cadence (fortnightly vs every 6 weeks). SITEチャット's advantage is ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SITEチャット ships an update every 6 weeks, GENCHO fortnightly. The most recent releases landed on August 17, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | SITEチャット | GENCHO |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **57.1% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 45 MB | 22 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KENSETSU SYSTEM Co.Ltd.](https://appshunter.io/developer/451675934) | [RT Project Ltd.](https://appshunter.io/developer/1522463102) |

## What reviewers say

### SITEチャット

[App page](https://appshunter.io/ios/app/site/id1480658876)

Facilitates communication for construction professionals with chat, voice, and video calls. Share blueprints and live video feeds from job sites, all for free. Integrates with a scheduling app for seamless workflow management.

**Highlights:** Group and individual chat, Voice and video calls, Blueprint sharing with annotation, Live video feed from job sites, Integration with SITEスケジュール, Free to use

**Features:** Vision Pro support

**In-app purchases:** none


### GENCHO

[App page](https://appshunter.io/ios/app/gencho/id1522463100)

This app streamlines on-site information sharing for the construction industry. It allows users to consolidate visual data, dimensions, and notes onto photos, facilitating clearer communication and saving time on administrative tasks. Enhance project efficiency and client satisfaction with this intuitive tool.

**Highlights:** Multi-layered photo instructions, Easy on-site dimension input, Flexible text annotation, Consolidated site information on photos, Partner registration for sharing, Secure personal data protection

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SITEチャット free?

SITEチャット is free to download, with no in-app purchases.

### Is GENCHO free?

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

### Do SITEチャット or GENCHO have ads?

GENCHO shows ads; SITEチャット does not.

### Which is updated more often, SITEチャット or GENCHO?

SITEチャット ships an update every 6 weeks, and GENCHO fortnightly. Most recently, SITEチャット was updated on August 17, 2026 and GENCHO on October 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*