Comparison

Chemicastle vs Kemistri

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

Head to head
About

Chemicastle

Features
Read full description

In Chemicastle, learning is built right into the gameplay. Combine atoms to form molecules, discover how bond types determine physical and chemical behavior. Educational Focus: - Understand intra- and intermolecular bonds - Explore the structure-property relationship - Practice with the periodic table and element behavior - Visualize abstract chemistry concepts in an interactive world Gameplay Features: - Craft molecules from randomly generated atoms - Defend your castle against monster waves - Manage resources Perfect For: - High school and university students learning chemistry fundamentals - Teachers seeking interactive classroom tools - Science enthusiasts who love puzzles and strategy games

About

Kemistri

An interactive game designed to make learning chemistry engaging and accessible. It helps students build a strong foundation by exploring concepts, practicing problem-solving, and completing challenges. Offers daily learning opportunities and achievements for a rewarding educational experience.

Highlights
  • Interactive chemistry challenges
  • Explore periodic table and atomic structure
  • Build molecules and chemical structures
  • Practice balancing chemical equations
  • Daily learning challenges and achievements
  • VSEPR theory and molecular geometry
  • Acids, bases, and pH scale exploration
Features
Read full description

Chemistry does not have to be boring, confusing or stressful. Kemistri is an interactive chemistry learning game that helps students understand important concepts, practise problem-solving and enjoy learning through guided gameplay. BUILD UNDERSTANDING, NOT JUST MEMORY Kemistri acts as a friendly learning guide, helping you build strong chemistry foundations instead of simply memorising facts and formulas. Through interactive challenges, you can: • Explore the periodic table • Understand atomic structure and electron arrangement • Build electronic configurations step by step • Apply electron-filling rules • Construct molecules and chemical structures • Identify different types of chemical reactions • Practise balancing chemical equations • Explore periodic trends • Learn VSEPR theory and molecular geometry • Understand hybridisation • Explore acids, bases and the pH scale • Solve chemistry problems logically Helpful explanations and hints guide you when needed, keeping learning rewarding rather than frustrating. INTERACTIVE CHEMISTRY ACTIVITIES Kemistri contains a growing collection of chemistry games and challenges, including: • Placing elements in their correct periodic-table positions • Arranging elements into the correct groups and periods • Building electronic configurations for different atoms • Filling atomic orbitals using electron rules • Constructing molecules • Recognising reaction types • Balancing chemical reactions • Exploring atomic radius, ionisation energy and electronegativity • Learning molecular shapes and chemical bonding • Experimenting with interactive chemistry tools Each activity introduces concepts through interaction, repetition and progressively more challenging levels. DAILY LEARNING AND DISCOVERY Keep learning with daily chemistry challenges, build your study streak and unlock achievements as you progress. Explore science legends, chemistry history, fascinating facts and jokes that make learning more memorable and enjoyable. MADE FOR CHEMISTRY REVISION Kemistri is suitable for: • School chemistry revision • Students beginning to learn chemistry • GCSE, A-level and equivalent learners • Daily concept practice • Curious learners who enjoy science Its calm, game-based approach makes revision more enjoyable and helps students practise without the pressure of a traditional test. LEARN AT YOUR OWN PACE Whether chemistry is completely new to you or you want another way to revise familiar topics, Kemistri allows you to progress gradually. Start with the fundamentals, complete interactive challenges and build confidence as new topics are introduced. BUILT WITH PASSION Kemistri is created by a small independent team focused on making science education more engaging and accessible. Your support helps us develop new chemistry content, improve the experience and expand language access. START LEARNING TODAY Explore the periodic table, atomic structure, electronic configurations, molecules, reactions and other core chemistry concepts in a smarter and more enjoyable way. Download Kemistri and begin your chemistry learning journey today. Levels 1–2 are free to play. Access to levels 3 onwards and some additional features requires a subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.edbetter.uk/mobile-privacy/

Screenshots

Chemicastle2 screens
Kemistri4 screens

Verdict

The call

The clearest difference is in-app purchases: Chemicastle at none against Kemistri's 4. Chemicastle also leads on iOS requirement (15.0 vs 17.0). Kemistri's advantage is update cadence (every 5 weeks vs every 4 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kemistri sells 4 in-app purchases, starting at $3.99 per month. Chemicastle asks for nothing beyond the download.

UpkeepUpdate frequency

Chemicastle ships an update every 4 months, Kemistri every 5 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 6 level
Chemicastle versus Kemistri: the parameters behind the verdict, then further details
ParameterChemicastleKemistri
PriceFreeFree
Rating—1.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size301 MB45 MB
Age rating9+4+
DeveloperHaute ecole pedagogique HEP-BEJUNEEdBetter Limited

In-app purchases

None

Chemicastle

No in-app purchases

4 purchases

Kemistri

Subscriptions4
  • Monthly Access Pass$3.991 Month
  • Quarterly Access Pass$9.993 Months
  • Semiannual Access Pass$17.996 Months
Show 1 more
  • Annual Access Pass$24.991 Year

Questions

Is Chemicastle free?
Chemicastle is free to download, with no in-app purchases.
Is Kemistri free?
Kemistri is free to download, with in-app purchases available.
Do Chemicastle or Kemistri have ads?
Neither Chemicastle nor Kemistri shows ads.
Which is updated more often, Chemicastle or Kemistri?
Chemicastle ships an update every 4 months, and Kemistri every 5 weeks. Most recently, Chemicastle was updated on October 24, 2026 and Kemistri on October 28, 2026.

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