# ZensNote vs AI Book Summary

The clearest difference is ads: ZensNote at none against AI Book Summary's shown. AI Book Summary's advantage is update cadence (fortnightly vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. ZensNote sells 8 in-app purchases, starting at $6.99 per 7 days and AI Book Summary sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ZensNote ships an update every 3 months, AI Book Summary fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | ZensNote | AI Book Summary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zensnote-ai-study-note-taker/id6758782007/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 100 MB | 160 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Study Note AI](https://appshunter.io/developer/1874959157) | [AppAspect Technologies Pvt. Ltd.](https://appshunter.io/developer/962656494) |

## What reviewers say

### ZensNote

[App page](https://appshunter.io/ios/app/zensnote-ai-study-note-taker/id6758782007)

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Learning Tools: Weekly | $6.99 | per 7 days |
| Smart Notebook: Monthly | $12.99 | per month |
| Knowledge Suite: Annual | $79.99 | per year |
| ZensNote Premium — Yearly | $79.99 | per year |
| 250 Study Credits | $5.99 | one-time |
| 1,000 Study Credits | $19.99 | one-time |
| 3,000 Study Credits | $49.99 | one-time |
| 7,000 Study Credits | $99.99 | one-time |


### AI Book Summary

[App page](https://appshunter.io/ios/app/ai-book-summary-audio-and-read/id6762128237)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Subscription | $5.99 | per month |
| Yealy Premium Subscription | $29.99 | per year |


## Frequently asked questions

### Is ZensNote free?

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

### Is AI Book Summary free?

AI Book Summary is free to download, with in-app purchases available.

### Do ZensNote or AI Book Summary have ads?

AI Book Summary shows ads; ZensNote does not.

### Which is updated more often, ZensNote or AI Book Summary?

ZensNote ships an update every 3 months, and AI Book Summary fortnightly. Most recently, ZensNote was updated on October 25, 2026 and AI Book Summary on October 25, 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.*