Silent Camera Study vs CHSK
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Silent Camera Study
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College entrance exams, qualification exams, corporate learning ... What can be said in common to all This app is essential for getting satisfactory results. The usage of this app is as follows. 1. Solve the problem book as usual. 2. Use this app to take pictures of problems you mistaken and their answers with explanations. 3. Use this app to repeatedly learn only these questions. 4. Questions that cannot be answered disappear and you can pass any exam. 5. Based on brain science, questions are displayed in the cycle that is most memorable. 6. In addition, special secret functions support your learning. By using this app, the problems you cannot solve will disappear from the world. You can now pass 100% of all exams.
CHSK
Prepare for HSK Chinese proficiency tests from levels 1 to 6 with mock exams, targeted practice modules, and vocabulary flashcards. Engage in word matching games and access a comprehensive grammar list with search functionality.
- Mock HSK exams with timer
- Targeted listening, reading, writing practice
- Bilingual vocabulary flashcards
- Timed word matching game
- Grammar points index and search
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CHSK is a preparation app for the HSK exam, levels 1 to 6. -Mock exams Complete past papers with a 90-minute timer. Listening, reading and writing appear in the order used in the exam. -Targeted practice Practise listening, reading or writing on their own, sorted by level and question type. -Daily Words Vocabulary flashcards in both directions, Chinese to English and English to Chinese. -Word Match Match 20 Chinese words to their meanings against a timer. -Grammar list Grammar points for HSK 1 to 6, with an index and search.
Screenshots
Verdict
The clearest difference is update cadence: CHSK at every 2 days against Silent Camera Study's every 4 days. Silent Camera Study's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 17.0). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Silent Camera Study ships an update every 4 days, CHSK every 2 days. The most recent releases landed on October 9, 2026 and September 28, 2026 respectively.
| Parameter | Silent Camera Study | CHSK |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 4 days | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 44 MB | 102 MB |
| Age rating | 4+ | 9+ |
| Developer | Kuta Yushikai | Wuxi Wudao Matrix Information Technology Co., Ltd |
In-app purchases
Silent Camera Study
No in-app purchases
CHSK
No in-app purchases
Questions
Is Silent Camera Study free?
Is CHSK free?
Do Silent Camera Study or CHSK have ads?
Which is updated more often, Silent Camera Study or CHSK?
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