Comparison

Math Cats vs 勤廬化學一點靈

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

Head to head
About

Math Cats

This app offers interactive math practice for grades 1-6, rewarding children with collectible cat images and videos as they master arithmetic skills. It provides detailed progress tracking for parents and a virtual scratchpad for calculations, eliminating the need for paper.

Highlights
  • Grade 1-6 arithmetic practice
  • Collectible cat images and videos
  • Progress tracking and statistics
  • Virtual scribble pad for calculations
  • Identification of areas of struggle
Features
Read full description

Math Cats is a math app that rewards your kids with adorable cat images and videos as they practice and progress through Grade 1–6 arithmetic. For parents: - Say goodbye to grading your child’s answers in workbooks! - Progressive exercises for Grades 1–6 arithmetic are all included; never buy that “next grade” workbook again! - Scribbles for incorrect answers are recorded, helping you identify where and why they are struggling. - Track their overall progress and performance with statistics such as overall percentage score, time taken per quest, and time spent per question. Your kids will: - Practice Grade 1–6 arithmetic that becomes progressively more challenging, including addition, subtraction, multiplication, division, decimals, and fractions. - Unlock cute and adorable cats every time they pass a quest — try to collect them all! - Use the built-in virtual scribble pad for calculations; no paper or pencil needed! - No longer be able to peek at the answers in the back of workbooks! Download Math Cats today and help your child become a math wizard!

About

勤廬化學一點靈

Features
Read full description

「勤廬化學一點靈」把高中化學會用到的計算、判讀、立體結構與一台自然顯示計算機收在同一支 App 裡。輸入化學式或方程式,就能自動平衡方程式,並算出莫耳數、pH、電池電位、反應熱與異構物名稱;每一步都看得到算式與代入過程,不是只丟一個答案給你。 ■ 化學式 .元素鍵盤:常用 30 顆一頁排完,也可切換完整週期表 .分子量與百分組成 .自動平衡化學方程式 .氧化數判定;氧化還原半反應四步驟平衡與兩式合併 .化學計量:限量試劑、理論產量與百分產率 .淨離子方程式 ■ 立體結構 .VSEPR 判斷電子域與分子形狀 .球棍模型可用手指拖曳自由旋轉 ■ 晶體 .常見晶格的立體堆積圖,可旋轉觀察 .附離子半徑圖例(如 Na⁺ 102 pm、Cl⁻ 181 pm) ■ 公式卡計算 .n = m / M、c = n / V、c₁V₁ = c₂V₂、滴定 c₁V₁n₁ = c₂V₂n₂、PV = nRT .單位可切換:g/mg/kg、mol/mmol、L/mL、mol/L/mmol/L、atm/kPa/mmHg、K/°C .留白哪一格就解哪一格,算出來的值可直接送到下一張卡繼續算 ■ 酸鹼 .pH、pOH、[H⁺]、[OH⁻] 四者互換,Kw 可依溫度調整 .弱酸鹼解離、緩衝溶液與鹽類水解 ■ 反應速率 .平均反應速率 r = |Δ[A]| ÷ (a·Δt) .依係數換算不同物種的變化速率 ■ 化學平衡 .平衡常數 Kc 與 Q 的比較,可由已平衡的方程式直接帶入物種 .Kp = Kc(RT)^Δn .溶度積 Ksp ■ 溶液 .依數性質 ΔT = i·K·m:凝固點下降、沸點上升 .莫耳分率與相對蒸氣壓 .溶液濃縮過程的動態示意圖 ■ 電化學 .E°cell = E°陰 − E°陽,電對可從表中挑選,也可自訂 E° .ΔG° = −nFE°cell、電池符號寫法、自發性判斷 .法拉第電解計算 ■ 熱化學 .卡計 q = m·c·ΔT .每莫耳反應熱 ΔH,並判斷吸熱或放熱 ■ 有機 .輸入分子式即列出同分異構物(鏈狀、單環、雙環) .中文 IUPAC 命名,含螺環與橋環(von Baeyer)系統命名 .鍵線式繪圖 .順反異構(幾何異構)的判定與命名,並附 Z/E 與 r/c/t 寫法  ※ 依高中範圍設計,不討論光學異構物 ■ 自然顯示計算機 .根號、分數按照平常閱讀習慣顯示,上下標也照課本的樣子排版 .可保留根號與分數的精確形式 .獨立分頁,也能在任一主題中隨時叫出來 —— .全程離線運作,不需註冊、不需連網 .不收集任何個人資料,計算內容只留在你的裝置上 .支援 iPhone 與 iPad 適用對象:高中(自然組必修與選修化學)的學生與老師,以及需要快速驗算的自學者。

Screenshots

Math Cats4 screens
勤廬化學一點靈4 screens

Verdict

The call

The clearest difference is price: 勤廬化學一點靈 at Free against Math Cats's $5.99. Math Cats's advantage is update cadence (every 5 days vs every 2 weeks). On ads, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

勤廬化學一點靈 is free to download; Math Cats costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Math Cats ships an update every 5 days, 勤廬化學一點靈 every 2 weeks. The most recent releases landed on September 26, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
Math Cats versus 勤廬化學一點靈: the parameters behind the verdict, then further details
ParameterMath Cats勤廬化學一點靈
Price$5.99Free — better
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size170 MB6 MB
Age rating4+4+
DeveloperKnowledge Vortex, LLCJUNG TSAN HSU

In-app purchases

None

Math Cats

No in-app purchases

None

勤廬化學一點靈

No in-app purchases

Questions

Is Math Cats free?
Math Cats costs $5.99, with no in-app purchases.
Is 勤廬化學一點靈 free?
勤廬化學一點靈 is free to download, with no in-app purchases.
Do Math Cats or 勤廬化學一點靈 have ads?
Neither Math Cats nor 勤廬化學一點靈 shows ads.
Which is updated more often, Math Cats or 勤廬化學一點靈?
Math Cats ships an update every 5 days, and 勤廬化學一點靈 every 2 weeks. Most recently, Math Cats was updated on September 26, 2026 and 勤廬化學一點靈 on October 12, 2026.

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