# Knowledge from OnlineObjects vs ScreenKing

The clearest difference is rating: Knowledge from OnlineObjects at 5.0 against ScreenKing's 3.7. Knowledge from OnlineObjects also leads on in-app purchases (none vs 24) and iOS requirement (13.0 vs 15.0). ScreenKing's advantage is update cadence (weekly vs every 4 months) and ratings volume (32 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. ScreenKing sells 21 in-app purchases, starting at $2.99 per 7 days. Knowledge from OnlineObjects asks for nothing beyond the download.

Knowledge from OnlineObjects holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: ScreenKing has 32 ratings behind it against 2, so its average is the more settled of the two.

Knowledge from OnlineObjects ships an update every 4 months, ScreenKing weekly. The most recent releases landed on June 1, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Knowledge from OnlineObjects | ScreenKing |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/knowledge-from-onlineobjects/id1227523203/reviews)** | [3.7 (32 ratings)](https://appshunter.io/ios/app/screenking-safari-extension/id1671535541/reviews) |
| Number of ratings | 2 | **32** |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 75 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Jonas Munk](https://appshunter.io/developer/1186363761) | [UU Momentum Network Technology Co., Ltd.](https://appshunter.io/developer/1093451680) |

## What reviewers say

### Knowledge from OnlineObjects

[App page](https://appshunter.io/ios/app/knowledge-from-onlineobjects/id1227523203)

Organize your thoughts and information with a personal knowledge base. Save web pages, highlight text, and sync across devices. Create questions and link answers to build a comprehensive understanding of any topic.

**Highlights:** Save web pages, Highlight text, Ad-free viewing, Sync between devices, Create questions and answers, Pose hypotheses, Share extension

**Features:** macOS Compatibility

**In-app purchases:** none


### ScreenKing

[App page](https://appshunter.io/ios/app/screenking-safari-extension/id1671535541)

Enhance your web browsing with an ad blocker, custom scripts, and dark mode. Enjoy faster video playback, privacy protection, and efficient searching. Customize your online experience with various themes and filtering rules.

**Highlights:** Automatic ad removal, Manual ad blocking with Tagit, Video playback enhancements, Customizable dark mode and themes, Super Search for quick results, UserScript support for customization, Continuous scrolling for search results, Privacy protection with network filter

**Features:** macOS Compatibility, Safari Extension, Family Sharing

**In-app purchases (21)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ScreenKing Pro | $2.99 | per 7 days |
| 1 Month Subscription | $3.99 | per month |
| ScreenKing Pro | $3.99 | per 7 days |
| ScreenKing Pro | $4.99 | per 7 days |
| ScreenKing Pro | $5.99 | per 7 days |
| ScreenKing Pro | $6.99 | per 7 days |
| ScreenKing Pro | $6.99 | per 7 days |
| ScreenKing Pro | $7.99 | per 7 days |
| ScreenKing Pro | $7.99 | per 7 days |
| ScreenKing Pro | $8.99 | per 7 days |
| ScreenKing Pro | $9.99 | per 7 days |
| ScreenKing Pro | $9.99 | per 7 days |
| ScreenKing Pro | $9.99 | per 7 days |
| ScreenKing Pro | $19.99 | per month |
| 6 Month Subscription | $21.99 | per 6 months |
| 1 Year Subscription | $24.99 | per year |
| ScreenKing Pro | $24.99 | per year |
| ScreenKing Pro | $29.99 | per year |
| ScreenKing Pro | $34.99 | per year |
| ScreenKing Pro | $49.99 | per year |
| ScreenKing Pro | $59.99 | per year |


## Frequently asked questions

### Is Knowledge from OnlineObjects free?

Knowledge from OnlineObjects is free to download, with no in-app purchases.

### Is ScreenKing free?

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

### Which has better reviews, Knowledge from OnlineObjects or ScreenKing?

Knowledge from OnlineObjects is rated higher. Knowledge from OnlineObjects averages 5.0 out of 5 from 2 ratings, while ScreenKing averages 3.7 from 32 ratings.

### Do Knowledge from OnlineObjects or ScreenKing have ads?

Neither Knowledge from OnlineObjects nor ScreenKing shows ads.

### Which is updated more often, Knowledge from OnlineObjects or ScreenKing?

Knowledge from OnlineObjects ships an update every 4 months, and ScreenKing weekly. Most recently, Knowledge from OnlineObjects was updated on June 1, 2026 and ScreenKing on June 2, 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.*