Element OTG vs OChemQuiz
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Element OTG
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• Complete Periodic Table - All 118 elements with detailed information • Interactive Learning Center - Chemistry quizzes and symbol practice • Smart Search & Filter - Find elements by name, symbol, or properties • Dark Mode Support - Choose light, dark, or follow system theme • Responsive Design - Perfect for phones, tablets, and desktops
OChemQuiz
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OChemQuiz is a clean, fast organic chemistry quiz app built for repetition and momentum. Practice with a growing bank of multiple-choice questions designed to mirror exam-style thinking: identify the mechanism, recognize the pattern, and pick the best answer under time pressure. Features: Exam-style multiple choice questions Score + progress tracking during each run 50/50 lifeline to eliminate two wrong answers Hint lifeline to eliminate one wrong answer Instant feedback and explanation when you miss Simple design made for quick study sessions Use OChemQuiz for daily drilling, pre-lab refreshers, or last-week exam prep. Run it for five minutes at a time and stack wins.
Screenshots
Verdict
The clearest difference is ads: OChemQuiz at none against Element OTG's shown. Element OTG's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Element OTG | OChemQuiz |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 25 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Japality Limited | Nicholas Alexander Kuhn |
In-app purchases
Element OTG
No in-app purchases
OChemQuiz
No in-app purchases
