知识树 vs Card Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
知识树
This intelligent learning system uses AI to understand knowledge, break down concepts, and dynamically schedule practice and review based on your memory state. It focuses on true retention through spaced repetition and scientific memory curves, not just completing exercises.
- AI-driven knowledge understanding
- Dynamic practice and review scheduling
- Breakdown of knowledge into testable points
- Spaced repetition for long-term memory
- Automatic assessment of mastery
- Progress tracking over speed
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这不是一款“多做题”的学习 App， 而是一套真正判断你是否学会的智能学习系统。 在这里，AI 不只是出题，而是先理解知识、拆解考点，再根据你的记忆状态动态安排练习与复习。 每一个知识点，都会被拆成清晰、可掌握的最小考点； 每一道题，都会服务于“真正记住”，而不是刷完就忘。 你不需要自己规划复习，也不需要反复猜“我到底学没学会”。 系统会结合你的答题表现与科学的记忆曲线，自动判断哪些内容已经稳定进入长期记忆，哪些还需要巩固。 当一个知识点被标记为“已掌握”， 意味着它已经经过多次间隔验证，而不是一次侥幸答对。 你看到的，不是题量，而是进度； 你追求的，不是速度，而是完成。
Card Master
This intelligent learning assistant uses a scientific memory algorithm based on the forgetting curve model to schedule personalized review sessions. It supports rich media notes, LaTeX, and code blocks, making it ideal for students, language learners, and professionals.
- Scientific memory algorithm (SM2)
- Personalized review scheduling
- Import Anki files (.apkg)
- Multi-dimensional note management
- Rich media support (images, audio, video)
- LaTeX equation editor
- Code highlighting
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【Master the Forgetting Curve, Remember Everything Efficiently】 Card Master is an intelligent learning assistant powered by a scientific memory algorithm. It uses a proven forgetting curve model to schedule personalized review sessions, helping you effortlessly retain important information—whether you’re learning a language, preparing for medical or law exams, or capturing fleeting ideas. Why Choose Card Master? Clean and elegant user interface Scientific memory algorithm: Based on SuperMemo and Anki’s spaced repetition system (SM2), it dynamically adjusts review frequency to maximize retention. Powerful import function: Supports one-click import of Anki files (.apkg), making it easy to transition from other learning tools. Multi-dimensional note management: Use tags to organize notes and support text, images, audio, video, tables, LaTeX formulas, scanned documents, and even code blocks—perfect for all learning scenarios. Key Features ▸ Smart review scheduler: Adapts to your memory performance for painless long-term retention. ▸ Rich media support: Insert images, audio, video, checklists, and even annotate images or extract text from them. ▸ Professional content tools: LaTeX equation editor, code highlighting, text styling (superscript, subscript, links, code snippets), and online media playback. ▸ Efficiency boosters: Background audio playback, keyboard shortcuts, find-and-replace text, and customizable fonts to enhance focus. Perfect For: ▸ Students (postgraduate entrance exams, CET-4/6, finals) ▸ Language learners (vocabulary and grammar for English, Japanese, etc.) ▸ Professionals (certification exams, business knowledge, speech memorization) ▸ Civil service exam candidates (general knowledge review, practice tests) —— Whether you’re a student, exam taker, or knowledge worker, Card Master simplifies learning and turns memory into a habit. Download now and begin your journey toward efficient, scientific learning! ——
Screenshots
Verdict
The clearest difference is rating: Card Master at 5.0 against 知识树's 4.2. Card Master also leads on in-app purchases (none vs 4). 知识树's advantage is update cadence (every 5 days vs every 3 weeks) and ratings volume (5 vs 1). On price, ads, device support and iOS requirement 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. 知识树 sells 4 in-app purchases, starting at $2.99 per month. Card Master asks for nothing beyond the download.
Card Master holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: 知识树 has 5 ratings behind it against 1, so its average is the more settled of the two.
知识树 ships an update every 5 days, Card Master every 3 weeks. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.
| Parameter | 知识树 | Card Master |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 38.9% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 22 MB |
| Age rating | 4+ | 17+ |
| Developer | 野 匡 | 秀娟 牛 |
Customer experience
知识树
Card Master
In-app purchases
知识树
- 月度会员$2.991 Month
- 季度会员$4.993 Months
- 年度会员$19.991 Year
- 终身会员$24.99
Card Master
No in-app purchases
