# Periodic Table Memorization vs ChemOasis

The clearest difference is rating: ChemOasis at 5.0 against Periodic Table Memorization's 4.4. ChemOasis also leads on in-app purchases (none vs 1) and ads (none vs shown). Periodic Table Memorization's advantage is iOS requirement (17.0 vs 26.5). On price, ratings volume and device support there is nothing between them.

Both are free to download. Periodic Table Memorization sells 1 one-off in-app purchase. ChemOasis asks for nothing beyond the download.

ChemOasis holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

Periodic Table Memorization ships an update every 3 weeks, ChemOasis daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | Periodic Table Memorization | ChemOasis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (5 ratings)](https://appshunter.io/ios/app/periodic-table-memorization/id6776222961/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/chemoasis/id6809320316/reviews)** |
| Number of ratings | **5** | 3 |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 18 MB | 5 MB |
| Requires iOS | **17.0** | 26.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [YU KORIKI](https://appshunter.io/developer/6776222963) | [Manoj Manna](https://appshunter.io/developer/6809320618) |

## What reviewers say

### Periodic Table Memorization

[App page](https://appshunter.io/ios/app/periodic-table-memorization/id6776222961)

Master element symbols and atomic numbers with interactive study modes. Build habits with daily streaks and reminders, track progress with charts, and prepare for chemistry exams. Works offline and offers a free trial.

**Highlights:** Four study modes: flashcards, quiz, fill-in-the-blank, puzzle, Daily streaks and reminders, Progress tracking charts, Offline functionality, Exam preparation for chemistry, Memorize element symbols and atomic numbers

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium lifetime | $1.99 | one-time |


### ChemOasis

[App page](https://appshunter.io/ios/app/chemoasis/id6809320316)

An interactive platform for students to learn chemistry and other sciences with tools for concept explanation, practice questions, and guided learning. Instructors can use it to check answers and create worksheets.

**Highlights:** Interactive science learning, Chemistry concept explanation, Practice question generation, Worksheet creation, Guided learning modules, Chemical structure exploration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Periodic Table Memorization free?

Periodic Table Memorization is free to download, with in-app purchases available.

### Is ChemOasis free?

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

### Which has better reviews, Periodic Table Memorization or ChemOasis?

ChemOasis is rated higher. Periodic Table Memorization averages 4.4 out of 5 from 5 ratings, while ChemOasis averages 5.0 from 3 ratings.

### Do Periodic Table Memorization or ChemOasis have ads?

Periodic Table Memorization shows ads; ChemOasis does not.

### Which is updated more often, Periodic Table Memorization or ChemOasis?

Periodic Table Memorization ships an update every 3 weeks, and ChemOasis daily. Most recently, Periodic Table Memorization was updated on October 31, 2026 and ChemOasis on October 31, 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.*