# mozaBook vs e

The clearest difference is review sentiment: e at 100% against mozaBook's 40%. e also leads on rating (5.0 vs 3.9) and in-app purchases (none vs 4). mozaBook's advantage is update cadence (fortnightly vs every 31 months) and ratings volume (25 vs 2). On price, ads and device support there is nothing between them.

Both are free to download. mozaBook sells 4 one-off in-app purchases. e asks for nothing beyond the download.

e holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: mozaBook has 25 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 40% of mozaBook's written reviews are positive against 100% of e's.

mozaBook ships an update fortnightly, e every 31 months. The most recent releases landed on August 1, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | mozaBook | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (25 ratings)](https://appshunter.io/ios/app/mozabook/id1142227993/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/e-sfera-app/id1391617097/reviews)** |
| Number of ratings | **25** | 2 |
| Positive reviews | 40.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 31 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 64 MB | 7 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [MOZAIK Education Ltd.](https://appshunter.io/developer/1064850236) | [Skolska knjiga d.d.](https://appshunter.io/developer/1569529725) |

## What reviewers say

### mozaBook

[App page](https://appshunter.io/ios/app/mozabook/id1142227993)

This app allows students to view interactive class content and digital textbooks sent by their teachers. It facilitates participation in classwork, assignment completion, and submission of answers directly through the application. Connect to interactive whiteboards and explore digital learning materials with ease.

**Highlights:** View interactive class content, Explore digital textbooks, Participate in classwork, Complete and submit assignments, Connect to teacher's interactive board, Access built-in extras

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mozaik STUDENT (1 year) | $34.99 | one-time |
| Mozaik STUDENT (2 years) | $59.99 | one-time |
| Mozaik TEACHER (1 year) | $89.99 | one-time |
| Mozaik TEACHER (2 years) | $179.99 | one-time |


### e

[App page](https://appshunter.io/ios/app/e-sfera-app/id1391617097)

This digital textbook system offers a comprehensive online learning platform for students and teachers. It provides access to expertly crafted digital textbooks enriched with interactive content, designed to enhance modern teaching and learning methods.

**Highlights:** Digital textbooks, Interactive learning content, Teacher preparation tools, Modern teaching methods, Curriculum alignment, Expert-authored content

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is mozaBook free?

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

### Is e free?

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

### Which has better reviews, mozaBook or e?

e is rated higher. mozaBook averages 3.9 out of 5 from 25 ratings, while e averages 5.0 from 2 ratings.

### Do mozaBook or e have ads?

Neither mozaBook nor e shows ads.

### Which is updated more often, mozaBook or e?

mozaBook ships an update fortnightly, and e every 31 months. Most recently, mozaBook was updated on August 1, 2026 and e on September 8, 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.*