# ЕГЭ Химия vs Биология синфи 9

The clearest difference is review sentiment: ЕГЭ Химия at 83% against Биология синфи 9's 0%. ЕГЭ Химия also leads on update cadence (weekly vs every 9 months). Биология синфи 9's advantage is in-app purchases (none vs 3) and iOS requirement (8.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. ЕГЭ Химия sells 2 one-off in-app purchases. Биология синфи 9 asks for nothing beyond the download.

ЕГЭ Химия ships an update weekly, Биология синфи 9 every 9 months. The most recent releases landed on October 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ЕГЭ Химия | Биология синфи 9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (21 ratings)](https://appshunter.io/ios/app/id1213726131/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | **82.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 months |
| Monetization | Freemium | **Free** |
| Size | 78 MB | 25 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nikolay Volokhov](https://appshunter.io/developer/1193001352) | [Khurshed Gulov](https://appshunter.io/developer/1329538296) |

## 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 |


### Биология синфи 9

[App page](https://appshunter.io/ios/app/9/id1443517792)

This educational app provides detailed information on the internal structure of the human body, serving as a valuable resource for students and aspiring medical professionals. It features high-quality illustrations and interactive questions to reinforce learning.

**Highlights:** Detailed human body structure information, High-quality illustrations, Topic-based learning modules, End-of-topic review questions, Interactive learning through Q&A

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ЕГЭ Химия free?

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

### Is Биология синфи 9 free?

Биология синфи 9 is free to download, with no in-app purchases.

### Do ЕГЭ Химия or Биология синфи 9 have ads?

Neither ЕГЭ Химия nor Биология синфи 9 shows ads.

### Which is updated more often, ЕГЭ Химия or Биология синфи 9?

ЕГЭ Химия ships an update weekly, and Биология синфи 9 every 9 months. Most recently, ЕГЭ Химия was updated on October 22, 2026 and Биология синфи 9 on September 24, 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.*