Comparison

EMemorization vs Oxygen

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

EMemorization

Features
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Build your vocabulary in 22 languages — free, no subscription, no account. 6,000+ words in 22 languages, 300+ ready-made packs from A1 to C1 and more than 74,000 example sentences. Every word is read aloud on your device. SMART SPACED REPETITION Each card comes back right before you would forget it. Words you know show up less often; the tricky ones return sooner. 6 WAYS TO TEST Multiple choice, typing, matching, mixed, fill-in-the-blank and pronunciation. Missed words collect in your Mistakes notebook for a quick retry. WORD OF THE DAY & WIDGETS • Word of the Day on your Home Screen and Lock Screen • An interactive flashcard widget: flip and answer without opening the app • Review on Apple Watch • Siri & Shortcuts, Quick Review in Control Center, a Live Activity while you study HANDS-FREE Listen mode reads each word and its meaning aloud. EXAM PREP HSK 1–4, JLPT N5–N2 and TOPIK starter packs (not official lists). Set your exam date for a countdown, a daily new-word plan and a Lock Screen countdown widget. YOUR OWN WORDS • Pick words from a printed page with the camera (on supported devices) • Fill in meanings with on-device translation (iOS 18+) • Import from CSV or .apkg files, or paste a list • Example sentences and memory hints with Apple Intelligence on supported devices STAY MOTIVATED Daily challenge, streaks and streak freezes, XP and levels, badges. Every word you truly learn sprouts in Memo's garden. FOR CLASSES Share lists by file or QR code. Teachers can send a list as an assignment; students send back their result as a PDF. PRIVACY & ADS No account, no subscription, no in-app purchases. Your lists stay on your device, with optional iCloud backup. The app is free and shows a banner ad; rewarded ads are optional. 22 LANGUAGES English, Spanish, French, German, Italian, Portuguese (Brazil), Turkish, Polish, Dutch, Swedish, Norwegian, Danish, Greek, Romanian, Russian, Japanese, Korean, Chinese (Simplified and Traditional), Indonesian, Vietnamese and Hindi. Pick your native language and the one you want to learn.

About

Oxygen

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
Read full description

This app serves as a dedicated companion specifically designed for medical students, offering a comprehensive and user-friendly platform tailored to meet their academic needs. Through this app, students gain seamless access to pre-recorded lectures that are meticulously aligned with their coursework, ensuring that they can study at their own pace and on their own schedule. The app features distinct roles for both students and administrators, allowing for a focused and efficient learning environment. Students can concentrate fully on their studies without the distraction of managing content, while administrators are empowered to oversee the platform, ensuring that all lecture materials are up-to-date and relevant. This clear division of roles fosters an organized and productive educational experience. While this app is not officially affiliated with any Medical College, it has been thoughtfully developed to support students in their academic journey, providing them with the resources they need to succeed. Whether you're reviewing a challenging topic or catching up on missed lectures, this app is designed to be an indispensable tool in your medical education.

Screenshots

EMemorization4 screens
Oxygen3 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard3 real differences · 6 level
EMemorization versus Oxygen: the parameters behind the verdict, then further details
ParameterEMemorizationOxygen
PriceFreeFree
Rating—5.0 (6 ratings) — better
Number of ratings—6 — better
Update frequencyEvery 2 monthsEvery 9 days — better
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS16.014.0.0 — better
Further details — not scored
Size36 MB45 MB
Age rating4+17+
DeveloperErge AkovaShayar Ghafour

In-app purchases

None

EMemorization

No in-app purchases

None

Oxygen

No in-app purchases

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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