# Chemical Engineering+ vs 12thPass Classroom

The clearest difference is in-app purchases: 12thPass Classroom at none against Chemical Engineering+'s 6. 12thPass Classroom also leads on update cadence (every 5 days vs every 2 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Chemical Engineering+ sells 6 in-app purchases, starting at $9.99 per month. 12thPass Classroom asks for nothing beyond the download.

Chemical Engineering+ ships an update every 2 months, 12thPass Classroom every 5 days. The most recent releases landed on October 23, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Chemical Engineering+ | 12thPass Classroom |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/chemical-engineering-plus/id6740001145/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 39 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) | [Bozon AI Labs](https://appshunter.io/developer/1896276611) |

## What reviewers say

### Chemical Engineering+

[App page](https://appshunter.io/ios/app/chemical-engineering-plus/id6740001145)

Test your knowledge of chemical engineering with a comprehensive quiz app. It offers thousands of questions across various topics, adaptive difficulty, and detailed explanations to enhance learning. Prepare for exams and boost your industry skills with this interactive tool.

**Highlights:** Extensive question bank, Topic-specific quizzes, Calculations & problem solving, Adaptive difficulty, Interactive learning with explanations, Offline play, Leaderboard competition

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


### 12thPass Classroom

[App page](https://appshunter.io/ios/app/12thpass-classroom/id6766321819)

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

**In-app purchases:** none


## Frequently asked questions

### Is Chemical Engineering+ free?

Chemical Engineering+ is free to download, with in-app purchases available.

### Is 12thPass Classroom free?

12thPass Classroom is free to download, with no in-app purchases.

### Do Chemical Engineering+ or 12thPass Classroom have ads?

Neither Chemical Engineering+ nor 12thPass Classroom shows ads.

### Which is updated more often, Chemical Engineering+ or 12thPass Classroom?

Chemical Engineering+ ships an update every 2 months, and 12thPass Classroom every 5 days. Most recently, Chemical Engineering+ was updated on October 23, 2026 and 12thPass Classroom on October 10, 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.*