# KUROFUNЕ Work vs DONE 66日間で習慣を定着

The clearest difference is in-app purchases: KUROFUNЕ Work at none against DONE 66日間で習慣を定着's 3. DONE 66日間で習慣を定着's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. DONE 66日間で習慣を定着 sells 3 in-app purchases, starting at $11.99 per month. KUROFUNЕ Work asks for nothing beyond the download.

## The numbers

| Metric | KUROFUNЕ Work | DONE 66日間で習慣を定着 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 36 MB | 49 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [KUROFUNE Inc.](https://appshunter.io/developer/1637786694) | [Tatsuya Kawauchi](https://appshunter.io/developer/1716320513) |

## What reviewers say

### KUROFUNЕ Work

[App page](https://appshunter.io/ios/app/kurofun-work/id1637786692)

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

**In-app purchases:** none


### DONE 66日間で習慣を定着

[App page](https://appshunter.io/ios/app/done-66/id6757388554)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Montly | $11.99 | per month |
| Yearly Unlimited | $39.99 | per year |
| Unlimited Parmanent | $59.99 | one-time |


## Frequently asked questions

### Is KUROFUNЕ Work free?

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

### Is DONE 66日間で習慣を定着 free?

DONE 66日間で習慣を定着 is free to download, with in-app purchases available.

### Do KUROFUNЕ Work or DONE 66日間で習慣を定着 have ads?

Neither KUROFUNЕ Work nor DONE 66日間で習慣を定着 shows ads.

---

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