OPA Surfzilla
Yushan 玉山 - TOCFL Vocabulary is estimated to make $639 per month from 7 downloads / mo, tracked daily on Peekly.
How Peekly estimates these figuresYushan (玉山) is a step-by-step vocabulary memorization app designed specifically for learning Traditional Chinese as it is used in Taiwan. Yushan follows the official TOCFL (Test of Chinese as a Foreign Language) curricu
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Yushan (玉山) is a step-by-step vocabulary memorization app designed specifically for learning Traditional Chinese as it is used in Taiwan.
Yushan follows the official TOCFL (Test of Chinese as a Foreign Language) curriculum, making it the perfect tool for learners focusing on Taiwan.
The app features 7509 essential words split into bite-sized levels (10 words each) across seven foundational bands:
- Novice 1 (準備級一級): 16 levels (160 words)
- Novice 2 (準備級二級): 24 levels (234 words)
- Level 1 / Beginner (入門級): 35 levels (347 words)
- Level 2 / Basic (基礎級): 49 levels (483 words)
- Level 3 / Intermediate (進階級): 117 levels (1167 words)
- Level 4 / Advanced (高階級): 235 levels (2342 words)
- Level 5 / Fluent (流利級): 278 levels (2776 words)
Learn through timed quizzes to build recognition from multiple angles (character, image, audio, definition, tone selection, pinyin).
Each level consists of three phases:
- Review: Flashcard-style browsing of words with audio pronunciation.
- New Words: Focused quiz introducing the level's new vocabulary.
- Validation: A mixed quiz testing cumulative retention to unlock the next level.
Once a character is encountered in the quizzes, it's added to your daily review. The review uses spaced repetition to bring each character back at the right time, maximizing your chances of moving it into long-term memory. You can also set a daily notification so you never forget to review.
The first 4 levels of every band are 100% free so you can try the app risk-free.
Unlock the remaining levels of any band via a one-time purchase.
Rating & reviews
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Monetization
Free
In-app purchases THB 52.00 - THB 225.00
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What's new
- New content: Level 5 - Updated content: Level 2, Level 3, and Level 4 - Purchases: Handle delayed payments more reliably
How much does Yushan 玉山 - TOCFL Vocabulary make?
Yushan 玉山 - TOCFL Vocabulary is estimated to make $639 per month, according to Peekly's daily tracking.
How many downloads does Yushan 玉山 - TOCFL Vocabulary have?
Yushan 玉山 - TOCFL Vocabulary has an estimated 7 downloads / mo on Google Play.
Is Yushan 玉山 - TOCFL Vocabulary free?
Yushan 玉山 - TOCFL Vocabulary is free to download with in-app purchases.
Publisher
OPA Surfzilla
Category
Education
Compatibility
7.0
Size
—
Rating
Rated for 3+
Price
Free
Released
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Last update
Aug 2, 2026
Languages
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