Kelime Defteri vs Chemlab
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kelime Defteri
This app helps you learn English vocabulary effectively by letting you save, organize, and practice words with their meanings. It features pronunciation guides, smart repetition systems, and progress tracking to solidify your learning.
- Save English words and meanings
- Organize and categorize vocabulary
- Listen to pronunciations
- Smart repetition system
- Track daily goals and progress
- Test knowledge with quizzes
- Share word lists
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Kelime Defteri, İngilizce kelimeleri düzenli ve kalıcı biçimde öğrenmenize yardımcı olan kişisel kelime çalışma uygulamasıdır. • İngilizce kelimelerinizi ve Türkçe anlamlarını kaydedin • Kelimeleri arayın, düzenleyin ve kategorilere ayırın • Telaffuzları dinleyerek öğrenmenizi destekleyin • Kendi ses kayıtlarınızı oluşturun • Akıllı tekrar sistemiyle kelimeleri doğru zamanda çalışın • Günlük hedefinizi ve ilerlemenizi takip edin • Farklı testlerle bilginizi ölçün • Kelime listelerinizi diğer kullanıcılarla paylaşın • Bildirimlerle çalışma düzeninizi koruyun Kelime Defteri; kişisel kelime arşivinizi oluşturmanızı, tekrarlarınızı planlamanızı ve öğrendiklerinizi testlerle pekiştirmenizi sağlar. Kelimelerini kaydet, dinle ve çalış.
Chemlab
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Demystify the microscopic world and transform your understanding of molecular science with Chemlab, the premier interactive chemistry ecosystem engineered to explain the universe through the lens of atoms, elements, and real-world reactions. Navigating traditional chemistry education frequently induces severe cognitive friction due to abstract formulas, dry textbook recitations, and intimidating symbol grids that fail to connect with daily reality. Chemlab completely rebuilds this learning paradigm by converting complex molecular behaviors, chemical equations, and structural concepts into a living, visual journey tailored for high school students, university academics, and curious minds who want to know how the world functions. The application overhauls the iconic Periodic Table by replacing static character blocks with highly responsive element profiles. Tapping any individual element instantly unlocks a comprehensive data sheet detailing its physical origins, industrial applications, and fascinating historical narratives. Discover the organic logic behind elements with distinct personalities to learn why gold permanently resists tarnishing, why mercury presents acute neurological hazards, and how carbon establishes the absolute structural framework for carbon-based life. The platform bridges abstract academia with domestic reality by dedicating an entire terminal to everyday household chemistry, showing you exactly how soap breaks down oils, what causes a sliced apple to darken when exposed to oxygen, and why mixing specific common cleaning agents like bleach and vinegar triggers highly dangerous toxic reactions. Bring scientific validation directly into your living space with a curated collection of safe, repeatable home experiments designed to cultivate analytical thinking through direct practice. Step-by-step laboratory instructions empower you to build vinegar volcanoes, synthesize invisible inks, and grow crystalline structures while explaining the exact molecular forces driving each outcome. To establish a flawless foundation, the platform translates fundamental scientific terminology into human language, clarifying the operational differences between atoms, molecules, ions, acids, alkalis, and pH balances. This foundational literacy works alongside a critical myth-busting terminal that replaces chemical panic with rational logic, dissecting popular phobias regarding organic compounds, processed preservatives, and food-grade E-additives. Review your growing mastery through an integrated interactive quiz terminal where you can identify elements from cryptic clues, predict reaction results, and spot structural errors in a gamified learning environment. For immediate scholastic support and spontaneous queries, engage with the conversational AI Chemist, an intelligent on-device tutor optimized to deliver step-by-step analytical solutions. Whether you are struggling to balance complex stoichiometry problems, seeking a plain-language summary of what a mole represents, or asking why water extinguishes combustion networks, your digital mentor provides rapid, context-aware breakdowns. Chemlab serves as your indispensable companion to accelerate your academic performance, unlock hidden scientific secrets, and claim complete intellectual sovereignty over the material world.
Screenshots
Verdict
The clearest difference is in-app purchases: Kelime Defteri at none against Chemlab's 2. Kelime Defteri also leads on iOS requirement (15.0 vs 18.0). Chemlab's advantage is update cadence (monthly vs every 65 months). On price, ads 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
Both are free to download. Chemlab sells 2 one-off in-app purchases. Kelime Defteri asks for nothing beyond the download.
Kelime Defteri ships an update every 65 months, Chemlab monthly. The most recent releases landed on October 14, 2026 and October 11, 2026 respectively.
| Parameter | Kelime Defteri | Chemlab |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 65 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 17 MB | 9 MB |
| Age rating | 17+ | 4+ |
| Developer | Parantez Teknoloji | Volodumur Kolosovskiy |
In-app purchases
Kelime Defteri
No in-app purchases
Chemlab
- AI Chemist Unlimited$1.99
- Experiments Pack$1.99









