# Mendeleev.me vs MiddleSchoolSciencePrep

The clearest difference is in-app purchases: MiddleSchoolSciencePrep at none against Mendeleev.me's 4. MiddleSchoolSciencePrep also leads on rating (5.0 vs 4.8). Mendeleev.me's advantage is ratings volume (24 vs 4) and iOS requirement (13.0 vs 15.0). On price, update cadence, ads and monetization model there is nothing between them.

Both are free to download. Mendeleev.me sells 4 one-off in-app purchases. MiddleSchoolSciencePrep asks for nothing beyond the download.

MiddleSchoolSciencePrep holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Mendeleev.me has 24 ratings behind it against 4, so its average is the more settled of the two.

Mendeleev.me ships an update every 6 weeks, MiddleSchoolSciencePrep every 2 months. The most recent releases landed on September 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Mendeleev.me | MiddleSchoolSciencePrep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (24 ratings)](https://appshunter.io/ios/app/mendeleevme/id1601845870/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/middleschoolscienceprep/id6478453172/reviews)** |
| Number of ratings | **24** | 4 |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 210 MB | 4 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AGILE FLEX TECH SRL](https://appshunter.io/developer/1601049602) | [Mangalmurti Vibes, LLC](https://appshunter.io/developer/1732899673) |

## What reviewers say

### Mendeleev.me

[App page](https://appshunter.io/ios/app/mendeleevme/id1601845870)

Explore the periodic table with detailed element information, interactive chemistry experiments, and atom structure simulations. This educational tool offers multi-language support, downloadable resources, and studying analytics to enhance learning. Discover hidden secrets and enjoy a cohesive, functional design.

**Highlights:** Virtual chemistry laboratory, Detailed element information, Atom structure simulations, Downloadable element PDFs, Studying analytics, Multi-language support, Interactive experiments

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SPECIAL OFFER! | $9.99 | one-time |
| The Chernobyl Experiments Pack | $9.99 | one-time |
| The Explosive Experiments Pack | $9.99 | one-time |
| The Metals Experiments Pack | $9.99 | one-time |


### MiddleSchoolSciencePrep

[App page](https://appshunter.io/ios/app/middleschoolscienceprep/id6478453172)

Master middle school science with over 1000 interactive multiple-choice questions. Covers earth, life, and physical sciences to supplement classroom learning and prepare for exams.

**Highlights:** Over 1000 multiple-choice questions, Covers earth, life, and physical sciences, Interactive quizzes, Supports exam preparation, Supplements classroom learning

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mendeleev.me free?

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

### Is MiddleSchoolSciencePrep free?

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

### Which has better reviews, Mendeleev.me or MiddleSchoolSciencePrep?

MiddleSchoolSciencePrep is rated higher. Mendeleev.me averages 4.8 out of 5 from 24 ratings, while MiddleSchoolSciencePrep averages 5.0 from 4 ratings.

### Do Mendeleev.me or MiddleSchoolSciencePrep have ads?

Neither Mendeleev.me nor MiddleSchoolSciencePrep shows ads.

### Which is updated more often, Mendeleev.me or MiddleSchoolSciencePrep?

Mendeleev.me ships an update every 6 weeks, and MiddleSchoolSciencePrep every 2 months. Most recently, Mendeleev.me was updated on September 10, 2026 and MiddleSchoolSciencePrep on September 19, 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.*