Kadmia vs Cube
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kadmia
Learn JavaScript through interactive challenges and games, focusing on fundamental programming principles rather than passive tutorials. Build your coding intuition step-by-step with engaging puzzles and immediate feedback.
- Interactive coding challenges
- Gamified learning approach
- Focus on programming fundamentals
- Active learning methods
- Daily progress tracking
- Debugging practice game
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Kadmia – Learn JavaScript With Games Kadmia helps you learn JavaScript by *doing*, not just watching tutorials. Most coding apps focus on passive learning—videos, long explanations, and memorization. Kadmia takes a different approach. Through interactive challenges and games, you actively build your programming intuition step by step. ### Build a Real Foundation Great programmers aren’t made by memorizing syntax. They’re built on strong fundamentals. Kadmia focuses on **first principles** of programming: * Variables and logic * Functions and flow * Problem solving * How code actually works Each concept builds naturally on the previous one, helping you develop skills that compound over time. ### Learn Through Play: Tap the Bug Our signature game, **Tap the Bug**, turns debugging into an engaging challenge. Bugs appear in your code and it's your job to spot and fix them. As you progress, the puzzles become more sophisticated—training your brain to recognize patterns and think like a programmer. It’s fast, fun, and surprisingly addictive. ### Active Learning Beats Passive Watching Instead of endless videos, Kadmia keeps you engaged with: * Interactive coding puzzles * Immediate feedback * Short learning loops * Practice that reinforces real understanding You learn faster because you’re constantly **thinking, experimenting, and solving problems.** ### Designed for Gradual Mastery Programming skill grows through consistent practice. Kadmia is designed for **daily progress**, helping you steadily expand your abilities over time. Whether you're starting from zero or strengthening your fundamentals, Kadmia helps you build the mindset and skills of a real JavaScript developer. Start learning JavaScript the way it was meant to be learned: **actively, playfully, and from first principles.**
Cube
Learn to solve over 50 different types of twisty puzzles with detailed, step-by-step tutorials. This guide offers offline access to all content, progress tracking, and quick reference cheat sheets for algorithms and notation.
- Master 50+ cube types
- Step-by-step tutorials
- Offline access
- Progress tracking
- Algorithm cheat sheets
- Mark favorite tutorials
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• Master 50+ cubes, from the classic 3×3, Pyraminx, and Ghost Cube to advanced puzzles like the 10×10 Mastermorphix and Master Mixup I. More cubes coming soon! • Designed for cubers of all ages and skill levels. Enjoy detailed step-by-step tutorials that guide you through the entire solve process. • Carefully crafted to make learning new cubes easy. Organized by category, each tutorial includes companion cheat sheets covering algorithms and cube notation for quick reference. • On the go without a Wi‑Fi connection? No problem! All tutorials are available offline (internet access required for external websites and streaming video content). • Create and manage quick cubing notes to track your progress. • Mark favorite tutorials for faster access. • Track which cubes you've solved with visual solved/unsolved indicators. • Your one-time purchase unlocks all future cube tutorial content at no additional cost. No subscriptions, no in-app paywalls, and no annoying ads. Discover the thrill of cube solving. Cube‑O‑Pedia is your trusted guide!
Screenshots
Verdict
The clearest difference is price: Kadmia at Free against Cube's $2.99. Kadmia also leads on rating (5.0 vs 4.0) and device support (3 vs 1). Cube's advantage is chart position (#194 vs unranked). On ratings volume, update cadence, ads 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
Kadmia is free to download; Cube costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Kadmia holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Kadmia ships an update every 6 months, Cube every 3 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | Kadmia | Cube |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 5.0 (1 ratings) — better | 4.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | — | #194 — better |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 31 MB | 701 MB |
| Age rating | 4+ | 4+ |
| Developer | Kadmia LLC | Corey McCollum |
Customer experience
Kadmia
Cube
In-app purchases
Kadmia
No in-app purchases
Cube
No in-app purchases









