# UDOList vs Skillbook

The clearest difference is in-app purchases: Skillbook at none against UDOList's 3. Skillbook also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. UDOList sells 3 in-app purchases, starting at $0.99 per month. Skillbook asks for nothing beyond the download.

UDOList ships an update weekly, Skillbook every 10 days. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | UDOList | Skillbook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Size | 54 MB | 40 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [俊豪 陈](https://appshunter.io/developer/1694583989) | [yoongun lee](https://appshunter.io/developer/1767288623) |

## What reviewers say

### UDOList

[App page](https://appshunter.io/ios/app/udolist/id6754129578)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UDOlist Monthly Membership | $0.99 | per month |
| UDOlist年度会员 | $3.99 | per year |
| UDOlist永久会员 | $9.99 | one-time |


### Skillbook

[App page](https://appshunter.io/ios/app/skillbook/id6755327760)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UDOList free?

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

### Is Skillbook free?

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

### Do UDOList or Skillbook have ads?

Neither UDOList nor Skillbook shows ads.

### Which is updated more often, UDOList or Skillbook?

UDOList ships an update weekly, and Skillbook every 10 days. Most recently, UDOList was updated on October 17, 2026 and Skillbook on October 6, 2026.

---

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