# ЕГЭ Химия vs mb4reader

The clearest difference is review sentiment: ЕГЭ Химия at 83% against mb4reader's 12%. ЕГЭ Химия also leads on rating (4.9 vs 2.3) and ratings volume (21 vs 4). mb4reader's advantage is in-app purchases (none vs 3) and iOS requirement (8.2 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ЕГЭ Химия sells 2 one-off in-app purchases. mb4reader asks for nothing beyond the download.

ЕГЭ Химия holds the better App Store score, 4.9 against 2.3. That said, the two scores are not equally well evidenced: ЕГЭ Химия has 21 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 83% of ЕГЭ Химия's written reviews are positive against 12% of mb4reader's.

ЕГЭ Химия ships an update weekly, mb4reader fortnightly. Both last shipped on November 6, 2026.

## The numbers

| Metric | ЕГЭ Химия | mb4reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (21 ratings)](https://appshunter.io/ios/app/id1213726131/reviews)** | [2.3 (4 ratings)](https://appshunter.io/ios/app/mb4reader/id1250475927/reviews) |
| Number of ratings | **21** | 4 |
| Positive reviews | **82.8% of reviews** | 11.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Freemium | **Free** |
| Size | 82 MB | 10 MB |
| Requires iOS | 16.0 | **8.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Nikolay Volokhov](https://appshunter.io/developer/1193001352) | [IPUZ, OOO](https://appshunter.io/developer/1250475926) |

## What reviewers say

### ЕГЭ Химия

[App page](https://appshunter.io/ios/app/id1213726131)

Prepare for the Chemistry Unified State Exam with offline access to practice tests, video explanations, theory, and trainers. Master formulas, reactions, and terms with detailed explanations and error tracking.

**Highlights:** Offline practice tests and timed quizzes, Detailed theory and formula reference, Error tracking and review section, Chemical reaction and term trainers, Score calculator and favorites, Online community chat

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Премиум + | $0.99 | one-time |
| Премиум доступ | $7.99 | one-time |


### mb4reader

[App page](https://appshunter.io/ios/app/mb4reader/id1250475927)

This application facilitates offline reading of electronic publications from various online library systems. It provides access to educational materials without requiring a constant internet connection.

**Highlights:** Offline reading, Access to student libraries, Access to medical libraries, Supports multiple online library systems, No internet required for reading

**In-app purchases:** none


## Frequently asked questions

### Is ЕГЭ Химия free?

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

### Is mb4reader free?

mb4reader is free to download, with no in-app purchases.

### Which has better reviews, ЕГЭ Химия or mb4reader?

ЕГЭ Химия is rated higher. ЕГЭ Химия averages 4.9 out of 5 from 21 ratings, while mb4reader averages 2.3 from 4 ratings.

### Do ЕГЭ Химия or mb4reader have ads?

Neither ЕГЭ Химия nor mb4reader shows ads.

### Which is updated more often, ЕГЭ Химия or mb4reader?

ЕГЭ Химия ships an update weekly, and mb4reader fortnightly. Most recently, ЕГЭ Химия was updated on November 6, 2026 and mb4reader on November 6, 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.*