# 23 Devs Library vs KnowVid

The clearest difference is in-app purchases: 23 Devs Library at none against KnowVid's 3. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. KnowVid sells 3 in-app purchases, starting at $8.99 per month. 23 Devs Library asks for nothing beyond the download.

## The numbers

| Metric | 23 Devs Library | KnowVid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (88 ratings)](https://appshunter.io/ios/app/knowvid-every-reel-is-a-gem/id6746798131/reviews)** |
| Number of ratings | — | **88** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 29 MB | 67 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NINA SAVELJEVA](https://appshunter.io/developer/962670684) | [MacroSmart Technology Limited](https://appshunter.io/developer/1798167344) |

## What reviewers say

### 23 Devs Library

[App page](https://appshunter.io/ios/app/23-devs-library/id6472991915)

**Features:** macOS Compatibility

**In-app purchases:** none


### KnowVid

[App page](https://appshunter.io/ios/app/knowvid-every-reel-is-a-gem/id6746798131)

This app transforms passive screen time into active learning with short, value-packed videos. Explore curated content on psychology, skills, and book summaries to grow your knowledge on the go. Unlock a smarter you with bite-sized insights and structured lessons.

**Highlights:** Multi-Length Learning Formats (1-min, 10-min, 30-min), Curated Video Collections, Swipeable Library of Book Insights, Immersive Vertical Video Feed, 30+ Growth-Focused Categories, Word-by-Word Narration & Subtitle Sync, Daily Smart Recommendations

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $8.99 | per month |
| Premium Annual Limited | $38.99 | per year |
| Premium Annual | $38.99 | per year |


## Frequently asked questions

### Is 23 Devs Library free?

23 Devs Library is free to download, with no in-app purchases.

### Is KnowVid free?

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

### Do 23 Devs Library or KnowVid have ads?

Neither 23 Devs Library nor KnowVid shows ads.

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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.*