# Chemical Solution Simple vs YouLearn

The clearest difference is price: YouLearn at Free against Chemical Solution Simple's $2.99. YouLearn also leads on update cadence (every 3 days vs every 3 months) and ratings volume (148 vs 1). Chemical Solution Simple's advantage is in-app purchases (none vs 2) and review sentiment (100% vs 73%). On ads and device support there is nothing between them.

YouLearn is free to download; Chemical Solution Simple costs $2.99 up front. YouLearn sells 2 in-app purchases, starting at $20.00 per month. Chemical Solution Simple asks for nothing beyond the download.

Chemical Solution Simple holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: YouLearn has 148 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Chemical Solution Simple's written reviews are positive against 73% of YouLearn's.

Chemical Solution Simple ships an update every 3 months, YouLearn every 3 days. The most recent releases landed on October 10, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Chemical Solution Simple | YouLearn |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267/reviews)** | [4.8 (148 ratings)](https://appshunter.io/ios/app/youlearn-ai-study-tutor/id6757114179/reviews) |
| Number of ratings | 1 | **148** |
| Positive reviews | **100.0% of reviews** | 72.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Paid | **Freemium** |
| Size | 1 MB | 83 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Volinsky](https://appshunter.io/developer/977951850) | [YouLearn Inc.](https://appshunter.io/developer/1863889653) |

## What reviewers say

### Chemical Solution Simple

[App page](https://appshunter.io/ios/app/chemical-solution-simple/id1080912267)

This app assists in preparing chemical solutions through dissolution and dilution. It calculates moles, molar masses, required solute weights, and starting solution volumes, supporting various concentration units.

**Highlights:** Solution preparation by dissolution, Solution preparation by dilution, Mole calculation, Molar mass analysis, Required solute weight calculation, Starting solution volume calculation, Supports Molar, mM, uM, g/l, mg/l units

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

**In-app purchases:** none


### YouLearn

[App page](https://appshunter.io/ios/app/youlearn-ai-study-tutor/id6757114179)

Transform your study materials into interactive learning tools like notes, flashcards, and quizzes. This AI-powered tutor provides explanations and personalized practice, helping you understand complex subjects faster and study on the go.

**Highlights:** Convert PDFs, slides, and videos to study materials, Generate notes, summaries, flashcards, and quizzes, AI tutor for step-by-step explanations, Create AI-generated podcasts from lectures, Organize materials by class or subject, Record lectures with transcripts and chapters

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| YouLearn Pro Monthly | $20.00 | per month |
| YouLearn Pro Yearly | $143.99 | per year |


## Frequently asked questions

### Is Chemical Solution Simple free?

Chemical Solution Simple costs $2.99, with no in-app purchases.

### Is YouLearn free?

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

### Which has better reviews, Chemical Solution Simple or YouLearn?

Chemical Solution Simple is rated higher. Chemical Solution Simple averages 5.0 out of 5 from 1 ratings, while YouLearn averages 4.8 from 148 ratings.

### Do Chemical Solution Simple or YouLearn have ads?

Neither Chemical Solution Simple nor YouLearn shows ads.

### Which is updated more often, Chemical Solution Simple or YouLearn?

Chemical Solution Simple ships an update every 3 months, and YouLearn every 3 days. Most recently, Chemical Solution Simple was updated on October 10, 2026 and YouLearn on October 25, 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.*