Comparison

DSE 數學公式 vs 化學之書

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

Head to head
About

DSE 數學公式

Access essential formulas and theorems for the HKDSE Mathematics exam. This app helps Hong Kong students easily find and bookmark key information for revision. It supports English and Chinese languages.

Highlights
  • Formulas and theorems for HKDSE Math
  • Graph visualizations for formulas
  • Bookmark important pages
  • Supports English, Traditional Chinese, Simplified Chinese
  • Covers various math categories
Features
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This is an app for Hong Kong students to prepare for the HKDSE Mathematics (compulsory Part) Examination. Students can find the formulas (with graph) and theorems easily in the app and bookmark the page they want to revise. The app support English, traditional Chinese and simplified Chinese. Main categories are list below: Formulas and Identities Exponential Functions and Logarithmic Functions Errors Percentages More about Polynomials Equations and Complex Number More about Graphs of Functions Variations Sequence More about Trigonometric Mensuration Coordinates Geometry Equations Permutation and Combination Standard Deviation

About

化學之書

Features
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BHNKC CHEM 是一款專為 HKDSE 化學科考生量身打造的溫習神器!無論你是在通勤途中,還是考前衝刺,這款 App 都能幫你隨時隨地鞏固化學知識,掌握奪星關鍵。 【核心功能特色】 全新功能:互動知識圖 (Knowledge Graphs) 告別死記硬背!我們將 DSE 最核心的化學概念,轉化為生動、可互動的知識圖譜。支援雙指縮放與拖曳,點擊節點即可查看詳細解說。涵蓋 16 大必考課題,包括: • 電子排佈與週期表 • 金屬活性序與金屬反應 • 鍵合與結構 • 酸和鹼 • 氧化還原、常見氧化還原劑與電化序 (E.C.S.) • 反應速率與化學平衡 • 碳化合物反應路徑 (Organic Pathways) • 工業化學 (哈柏法、氯鹼工業、甲醇生產、綠色化學) 必背筆記 (Must-Know Notes) 精煉各個課題的重點精華,按書本及課題有系統地分類,讓你快速重溫核心概念、定義及常考重點。 實驗裝置 (Experimental Setups) 收錄 DSE 必學的經典化學實驗裝置圖。支援高解析度放大查看,並可一鍵分享圖象給同學一起討論。 化學方程式 (Chemical Equations) 內置完整的化學方程式總覽 PDF,助你輕鬆應付需要書寫全方程式或離子方程式的題目。 多項選擇題庫 (MC Practice) 精選大量 MC 題目,特設自動記錄進度功能。清楚顯示「答對」與「待溫習」的題目,針對弱點反覆練習,提升答題速度與準確率。 官方教學頻道 內置 BHNKC 化學 YouTube 頻道連結,一鍵直達觀看教學影片,學習零死角。 【設計貼心】 • 支援深色模式 (Dark Mode) 與淺色模式 (Light Mode),對比度經特別優化,保護雙眼。 • 介面簡潔清晰,專為流動裝置設計,閱讀舒適。 立即下載 BHNKC CHEM,讓化學溫習變得更高效、更有趣!

Screenshots

DSE 數學公式4 screens
化學之書4 screens

Verdict

The call

The clearest difference is update cadence: 化學之書 at every 3 weeks against DSE 數學公式's every 3 months. DSE 數學公式's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DSE 數學公式 ships an update every 3 months, 化學之書 every 3 weeks. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.

Scorecard2 real differences · 8 level
DSE 數學公式 versus 化學之書: the parameters behind the verdict, then further details
ParameterDSE 數學公式化學之書
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size27 MB55 MB
Age rating4+12+
DeveloperMoux Interactive LimitedBUDDHIST HO NAM KAM COLLEGE

In-app purchases

None

DSE 數學公式

No in-app purchases

None

化學之書

No in-app purchases

Questions

Is DSE 數學公式 free?
DSE 數學公式 is free to download, with no in-app purchases.
Is 化學之書 free?
化學之書 is free to download, with no in-app purchases.
Do DSE 數學公式 or 化學之書 have ads?
Neither DSE 數學公式 nor 化學之書 shows ads.
Which is updated more often, DSE 數學公式 or 化學之書?
DSE 數學公式 ships an update every 3 months, and 化學之書 every 3 weeks. Most recently, DSE 數學公式 was updated on November 3, 2026 and 化學之書 on October 27, 2026.

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