# Chemistry AI vs Oxygen

The clearest difference is in-app purchases: Oxygen at none against Chemistry AI's 2. Oxygen also leads on update cadence (every 9 days vs monthly) and rating (5.0 vs 4.8). Chemistry AI's advantage is ratings volume (31 vs 6) and iOS requirement (12.0 vs 14.0.0). On price, ads and device support there is nothing between them.

Both are free to download. Chemistry AI sells 2 in-app purchases, starting at $5.99 per 7 days. Oxygen asks for nothing beyond the download.

Oxygen holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Chemistry AI has 31 ratings behind it against 6, so its average is the more settled of the two.

Chemistry AI ships an update monthly, Oxygen every 9 days. The most recent releases landed on November 8, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Chemistry AI | Oxygen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (31 ratings)](https://appshunter.io/ios/app/chemistry-ai-physics-ai/id6499339703/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/oxygen/id6645736637/reviews)** |
| Number of ratings | **31** | 6 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 48 MB | 45 MB |
| Requires iOS | **12.0** | 14.0.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Ilona Dantsevich](https://appshunter.io/developer/1710098663) | [Shayar Ghafour](https://appshunter.io/developer/1790857594) |

## What reviewers say

### Chemistry AI

[App page](https://appshunter.io/ios/app/chemistry-ai-physics-ai/id6499339703)

This educational app provides AI-powered assistance for math, physics, and chemistry. It offers step-by-step explanations, personalized learning paths, and study tips to help students understand concepts and improve academic performance.

**Highlights:** AI-powered homework assistance, Step-by-step explanations, Support for math, physics, and chemistry, Personalized learning paths, Study tips and articles, Instant homework help

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $5.99 | per 7 days |
| Monthly Subscription | $14.99 | per month |


### Oxygen

[App page](https://appshunter.io/ios/app/oxygen/id6645736637)

This app provides medical students with a dedicated platform for their studies. It offers access to pre-recorded lectures aligned with coursework, allowing for flexible learning. The app features distinct roles for students and administrators to ensure an organized and efficient educational experience.

**Highlights:** Pre-recorded lecture access, Coursework-aligned content, Student role for learning, Administrator role for management, Flexible study schedule

**In-app purchases:** none


## Frequently asked questions

### Is Chemistry AI free?

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

### Is Oxygen free?

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

### Which has better reviews, Chemistry AI or Oxygen?

Oxygen is rated higher. Chemistry AI averages 4.8 out of 5 from 31 ratings, while Oxygen averages 5.0 from 6 ratings.

### Do Chemistry AI or Oxygen have ads?

Neither Chemistry AI nor Oxygen shows ads.

### Which is updated more often, Chemistry AI or Oxygen?

Chemistry AI ships an update monthly, and Oxygen every 9 days. Most recently, Chemistry AI was updated on November 8, 2026 and Oxygen on November 4, 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.*