# Sumizeit vs Book AI

The clearest difference is rating: Sumizeit at 4.5 against Book AI's 4.1. Sumizeit also leads on update cadence (every 4 days vs every 3 weeks) and review sentiment (78% vs 55%). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Sumizeit sells 19 in-app purchases, starting at $0.99 per year and Book AI sells 8 in-app purchases, starting at $11.49 per month. Whichever you choose, the download price is not the number that matters.

Sumizeit holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 282 and 57 respectively. Written reviews point the same way: 78% of Sumizeit's written reviews are positive against 55% of Book AI's.

Sumizeit ships an update every 4 days, Book AI every 3 weeks. Both last shipped on October 29, 2026.

## The numbers

| Metric | Sumizeit | Book AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (282 ratings)](https://appshunter.io/ios/app/sumizeit-daily-micro-learning/id1327646115/reviews)** | [4.1 (57 ratings)](https://appshunter.io/ios/app/book-ai-smart-summaries/id1529256629/reviews) |
| Number of ratings | **282** | 57 |
| Positive reviews | **77.8% of reviews** | 54.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 59 MB | 102 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Scomy Inc](https://appshunter.io/developer/678648751) | [Riafy Technologies Pvt. Ltd.](https://appshunter.io/developer/918478397) |

## What reviewers say

### Sumizeit

[App page](https://appshunter.io/ios/app/sumizeit-daily-micro-learning/id1327646115)

Access concise summaries of non-fiction books in text, audio, infographic, podcast, and video formats. Learn key insights from experts in personal development, career, health, and more, in just minutes a day. Offers short audio courses for further learning.

**Highlights:** Text, audio, video book summaries, Infographic and podcast summaries, Short audio courses, Personal development topics, Career and success advice, Expert-curated content, Send summaries to Kindle

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

**In-app purchases (19)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sumizeit Yearly Subscription | $0.99 | per year |
| Sumizeit Monthly Subscription | $0.99 | per month |
| SumizeitMonthly | $4.99 | per month |
| Sumizeit Monthly Subscription | $4.99 | per month |
| Sumizeit Monthtly Subscription | $5.99 | per month |
| Sumizeit Monthly | $6.99 | per month |
| Sumizeit Yearly Subscription | $7.99 | per year |
| Sumizeit Premium Monthly | $12.99 | per month |
| SumizeItYearlySubscription | $24.99 | per year |
| Sumizeit Yearly 50% off | $24.99 | per year |
| Sumizeit Yearly Subscription | $39.99 | per year |
| Subscription Annual $39.99 | $39.99 | per year |
| Sumizeit Yearly Subscription | $49.99 | per year |
| Sumizeit Yearly Subscription | $69.00 | per year |
| Intelligence Type Test Results | $0.99 | one-time |
| 20 Infographics | $9.99 | one-time |
| 20+ Infographics | $19.99 | one-time |
| Sumizeit Lifetime Subscription | $69.99 | one-time |
| Sumizeit Lifetime | $99.99 | one-time |

**What reviewers like**

- 👍 Useful for learning
- 💡 Fills market gap
- 🚀 Quick and easy summaries
- 👍 User-friendly interface
- 👍 Detailed and fun summaries

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Not working on iPad
- 🐛 Dark mode issues
- 🐛 Overly simplified books
- 🐛 Deceptive pricing/refund policy

**Reported bugs**

- Crashes when opening Challenges
- Crashes when bookmarking
- Crashes when selecting interests
- App crashes immediately on various actions
- Login with Gmail not working

**Requested features**

- More video summaries
- Sign In with Apple


### Book AI

[App page](https://appshunter.io/ios/app/book-ai-smart-summaries/id1529256629)

Access concise summaries of thousands of books in minutes, delivered via AI-powered text or audio. Ideal for busy individuals seeking to expand their knowledge and gain insights from bestsellers across various genres.

**Highlights:** AI-powered book summaries, Audio summaries with narration, Thousands of titles across categories, Quick reading/listening sessions, Personalized recommendations, Seamless audio playback, Curated collections, Weekly content updates

**Features:** macOS Compatibility, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Book Summaries Monthly | $11.49 | per month |
| Book Summaries Monthly Trial | $11.49 | per month |
| Book Summaries Half Yearly | $24.99 | per 6 months |
| Book Summaries Six month Trial | $24.99 | per 6 months |
| Book Summaries Yearly Trial | $29.99 | per year |
| Book Summaries Discounted | $39.99 | per 6 months |
| Book Summaries Yearly | $49.99 | per year |
| 7 days premium | $2.99 | one-time |


## Frequently asked questions

### Is Sumizeit free?

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

### Is Book AI free?

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

### Which has better reviews, Sumizeit or Book AI?

Sumizeit is rated higher. Sumizeit averages 4.5 out of 5 from 282 ratings, while Book AI averages 4.1 from 57 ratings.

### Do Sumizeit or Book AI have ads?

Neither Sumizeit nor Book AI shows ads.

### Which is updated more often, Sumizeit or Book AI?

Sumizeit ships an update every 4 days, and Book AI every 3 weeks. Most recently, Sumizeit was updated on October 29, 2026 and Book AI on October 29, 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.*