Comparison

Oxygen vs ChemSpark

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

Head to head
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.

About

ChemSpark

Master chemistry concepts and prepare for exams with this comprehensive study tool. It offers a dynamic way to test knowledge across various topics, featuring diverse question types, visual learning aids, and detailed feedback to track progress and improve understanding.

Highlights
  • Extensive question bank with varying difficulty
  • Multiple question types (multiple-choice, fill-in-the-blank)
  • Visual learning aids with images and diagrams
  • Detailed feedback and answer explanations
  • Structured learning by subject and topic
  • Progress tracking and score monitoring
  • Interactive testing interface
Features
Read full description

Struggling with Chemistry? Ace your AP, high school, or college exams with ChemSpark! Access hundreds of interactive questions, visual diagrams, and detailed explanations to master everything from the Periodic Table to Organic Chemistry. Key Features: Extensive Question Bank: Practice with a diverse set of questions covering numerous chemistry topics, complete with varying difficulty levels (easy, medium, hard). Multiple Question Types: Challenge yourself with different formats, including multiple-choice and fill-in-the-blank questions. Visual Learning: Enhance your understanding with questions that include relevant images and diagrams. Detailed Feedback: After completing a test, review your performance, see your score, and understand the reasoning behind answers with clear explanations for each question. Structured Learning: Navigate easily through well-organized subjects and topics to focus on specific areas of study. Interactive Testing: Experience a smooth and intuitive testing interface that allows you to select answers, move between questions, and receive immediate feedback upon test completion. Track Your Progress: Monitor your scores on tests to identify areas of strength and opportunities for improvement. Flexible Practice: Quit tests anytime or complete them to see your full results. Whether you're a high school student gearing up for exams, a college student tackling challenging coursework, or simply an enthusiast looking to refresh your chemistry knowledge, ChemSpark is your perfect study companion. Our "Recommended" section will also guide you to further resources and tools to enhance your learning journey! Download ChemSpark today and start your journey to chemistry mastery! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Oxygen3 screens
ChemSpark4 screens

Verdict

The call

The clearest difference is in-app purchases: Oxygen at none against ChemSpark's 5. Oxygen also leads on ads (none vs shown) and rating (5.0 vs 4.6). On price, ratings volume 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. ChemSpark sells 5 one-off in-app purchases. Oxygen asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Oxygen holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 6 and 8 respectively.

UpkeepUpdate frequency

Oxygen ships an update every 9 days, ChemSpark monthly. Both last shipped on October 24, 2026.

Scorecard6 real differences · 3 level
Oxygen versus ChemSpark: the parameters behind the verdict, then further details
ParameterOxygenChemSpark
PriceFreeFree
Rating5.0 (6 ratings) — better4.6 (8 ratings)
Number of ratings68 — better
Update frequencyEvery 9 days — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0.0 — better17.6
Further details — not scored
Size45 MB43 MB
Age rating17+4+
DeveloperShayar GhafourLojas Software Corp

Customer experience

Oxygen

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ChemSpark

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Oxygen

No in-app purchases

5 purchases

ChemSpark

One-time5
  • Test Tube of Hints (25)$0.99
  • Combustion Skips (5)$0.99
  • Atomic Skips (15)$1.99
Show 2 more
  • Beaker of Hints (60)$2.99
  • Flask of Hints (150)$4.99

Questions

Is Oxygen free?
Oxygen is free to download, with no in-app purchases.
Is ChemSpark free?
ChemSpark is free to download, with in-app purchases available.
Which has better reviews, Oxygen or ChemSpark?
Oxygen is rated higher. Oxygen averages 5.0 out of 5 from 6 ratings, while ChemSpark averages 4.6 from 8 ratings.
Do Oxygen or ChemSpark have ads?
ChemSpark shows ads; Oxygen does not.
Which is updated more often, Oxygen or ChemSpark?
Oxygen ships an update every 9 days, and ChemSpark monthly. Most recently, Oxygen was updated on October 24, 2026 and ChemSpark on October 24, 2026.

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