# AT WORK GROUP公式アプリ vs proj

The clearest difference is in-app purchases: AT WORK GROUP公式アプリ at none against proj's 2. proj's advantage is update cadence (monthly vs every 17 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. proj sells 2 in-app purchases, starting at $5.99 per month. AT WORK GROUP公式アプリ asks for nothing beyond the download.

AT WORK GROUP公式アプリ ships an update every 17 months, proj monthly. The most recent releases landed on July 19, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | AT WORK GROUP公式アプリ | proj |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Monthly** |
| Size | 83 MB | 73 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AT WORK CO.,LTD.](https://appshunter.io/developer/1703933931) | [MH21 Inc](https://appshunter.io/developer/1852924216) |

## What reviewers say

### AT WORK GROUP公式アプリ

[App page](https://appshunter.io/ios/app/at-work-group/id6463096775)

**In-app purchases:** none


### proj

[App page](https://appshunter.io/ios/app/proj-mh21/id6755293529)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| middleplan | $5.99 | per month |
| maxplan | $19.99 | per month |


## Frequently asked questions

### Is AT WORK GROUP公式アプリ free?

AT WORK GROUP公式アプリ is free to download, with no in-app purchases.

### Is proj free?

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

### Do AT WORK GROUP公式アプリ or proj have ads?

Neither AT WORK GROUP公式アプリ nor proj shows ads.

### Which is updated more often, AT WORK GROUP公式アプリ or proj?

AT WORK GROUP公式アプリ ships an update every 17 months, and proj monthly. Most recently, AT WORK GROUP公式アプリ was updated on July 19, 2026 and proj on September 18, 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.*