# EMemorization vs Oxygen

The clearest difference is ads: Oxygen at none against EMemorization's shown. Oxygen also leads on update cadence (every 9 days vs every 2 months) and iOS requirement (14.0.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EMemorization ships an update every 2 months, Oxygen every 9 days. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | EMemorization | Oxygen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/oxygen/id6645736637/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 36 MB | 45 MB |
| Requires iOS | 16.0 | **14.0.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Erge Akova](https://appshunter.io/developer/1644563154) | [Shayar Ghafour](https://appshunter.io/developer/1790857594) |

## What reviewers say

### EMemorization

[App page](https://appshunter.io/ios/app/ememorization-vocab-builder/id1659716997)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


### 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 EMemorization free?

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

### Is Oxygen free?

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

### Do EMemorization or Oxygen have ads?

EMemorization shows ads; Oxygen does not.

### Which is updated more often, EMemorization or Oxygen?

EMemorization ships an update every 2 months, and Oxygen every 9 days. Most recently, EMemorization was updated on November 7, 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.*