# Learn Thermal Engineering vs Chemical Engineering+

The clearest difference is price: Chemical Engineering+ at Free against Learn Thermal Engineering's $1.99. Chemical Engineering+ also leads on update cadence (every 2 months vs every 39 months). Learn Thermal Engineering's advantage is in-app purchases (none vs 6) and iOS requirement (15.6 vs 17.0). On ads and device support there is nothing between them.

Chemical Engineering+ is free to download; Learn Thermal Engineering costs $1.99 up front. Chemical Engineering+ sells 6 in-app purchases, starting at $9.99 per month. Learn Thermal Engineering asks for nothing beyond the download.

Learn Thermal Engineering ships an update every 39 months, Chemical Engineering+ every 2 months. The most recent releases landed on September 25, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Learn Thermal Engineering | Chemical Engineering+ |
| --- | --- | --- |
| Price | $1.99 | **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 | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 43 MB | 18 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Muhammad Umair](https://appshunter.io/developer/1696049320) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### Learn Thermal Engineering

[App page](https://appshunter.io/ios/app/learn-thermal-engineering/id6451246075)

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

**In-app purchases:** none


### 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

**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 |


## Frequently asked questions

### Is Learn Thermal Engineering free?

Learn Thermal Engineering costs $1.99, with no in-app purchases.

### Is Chemical Engineering+ free?

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

### Do Learn Thermal Engineering or Chemical Engineering+ have ads?

Neither Learn Thermal Engineering nor Chemical Engineering+ shows ads.

### Which is updated more often, Learn Thermal Engineering or Chemical Engineering+?

Learn Thermal Engineering ships an update every 39 months, and Chemical Engineering+ every 2 months. Most recently, Learn Thermal Engineering was updated on September 25, 2026 and Chemical Engineering+ on June 3, 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.*