# 開業支援G21 vs Komaca

The clearest difference is ads: 開業支援G21 at none against Komaca's shown. 開業支援G21 also leads on iOS requirement (15.6 vs 17.0). Komaca's advantage is update cadence (every 3 weeks vs every 2 months). On price, 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.

開業支援G21 ships an update every 2 months, Komaca every 3 weeks. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 開業支援G21 | Komaca |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (3 ratings)](https://appshunter.io/ios/app/komaca/id1631579868/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Ad-supported |
| Size | 5 MB | 88 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [株式会社ヨシダ](https://appshunter.io/developer/1417159527) | [Chia Inc.](https://appshunter.io/developer/1466749194) |

## What reviewers say

### 開業支援G21

[App page](https://appshunter.io/ios/app/g21/id1424788384)

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

**In-app purchases:** none


### Komaca

[App page](https://appshunter.io/ios/app/komaca/id1631579868)

Easily create professional, mobile-friendly websites for your business, store, or hobby group without any technical expertise. Focus on your vision while the app handles the complex website building process for you.

**Highlights:** Free website creation, Mobile-friendly design, Desktop compatibility, No technical expertise needed, Focus on creative vision

**In-app purchases:** none


## Frequently asked questions

### Is 開業支援G21 free?

開業支援G21 is free to download, with no in-app purchases.

### Is Komaca free?

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

### Do 開業支援G21 or Komaca have ads?

Komaca shows ads; 開業支援G21 does not.

### Which is updated more often, 開業支援G21 or Komaca?

開業支援G21 ships an update every 2 months, and Komaca every 3 weeks. Most recently, 開業支援G21 was updated on October 5, 2026 and Komaca on October 24, 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.*