# 크루메일 vs DocuONE

The clearest difference is update cadence: 크루메일 at every 2 months against DocuONE's every 7 months. 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.

크루메일 ships an update every 2 months, DocuONE every 7 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | 크루메일 | DocuONE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Size | 7 MB | 23 MB |
| Requires iOS | **10.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DaZone Tech Inc.](https://appshunter.io/developer/1073506541) | [Jiransecurity Co., Ltd.](https://appshunter.io/developer/933673233) |

## What reviewers say

### 크루메일

[App page](https://appshunter.io/ios/app/id1280846305)

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

**In-app purchases:** none


### DocuONE

[App page](https://appshunter.io/ios/app/docuone/id1537715567)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 크루메일 free?

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

### Is DocuONE free?

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

### Do 크루메일 or DocuONE have ads?

Neither 크루메일 nor DocuONE shows ads.

### Which is updated more often, 크루메일 or DocuONE?

크루메일 ships an update every 2 months, and DocuONE every 7 months. Most recently, 크루메일 was updated on November 3, 2026 and DocuONE on November 3, 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.*