Comparison

自我挑戰獎勵計劃 vs Sobo Math

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

Head to head
About

自我挑戰獎勵計劃

Features
Read full description

聖公會主風小學為了鼓勵同學在勤學、服務、體藝、感恩、閱讀、品德、自律、靈性八方面有積極的表現 ,本校於本年度推行 「自我挑戰」 獎勵計劃App。 每位學生均可加入「自我挑戰」獎勵計劃應用程式的個人帳戶。學生首先為自己於本學年的學習、自我管理及關愛他人各方面訂立目標,繼而於 日常表現盡量做到最好,以期達標。

About

Sobo Math

Features
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Your child may not be “bad at maths”—they may be using an app built for another curriculum. Sobo Math follows Hong Kong EDB Key Stage 2 (Primary 4–6): 41 units and 231 stages on one clear map. This is an independent app, not an official EDB product. Why families choose us • Mapped to HK P4–P6: number, measures, shape, data, algebra • 4,900+ questions with interactive visuals and step-by-step help (not every item has a diagram) • Traditional Chinese, Simplified Chinese, and English text; Cantonese, Mandarin, and English read-aloud—script and voice can be set separately • Daily path, quests, and streaks • Sobo grows with practice XP (no pay-to-skip evolution) • Parent report: all weak-skill names free; one-tap practice on the first gap • Offline lessons, no third-party ads, no account Free includes every unit in order (daily energy limits how fast; later units unlock after earlier ones). Mock exam: 10 questions untimed. PRO: skip-ahead, unlimited energy, timed mocks (20–35 questions by year), unlimited adaptive review, full parent shortcuts and export. Practice papers here are school-style drills, not official TSA or school exam papers. Start free. Yearly plan may include a trial for eligible new subscribers (App Store terms). Subscriptions: Monthly HK$78 / Yearly HK$588 (~HK$49/mo). Auto-renews; cancel in Apple ID settings. Privacy: https://sisiyeung1126-max.github.io/math-games-ios/privacy.html

Screenshots

自我挑戰獎勵計劃3 screens
Sobo Math4 screens

Verdict

The call

The clearest difference is in-app purchases: 自我挑戰獎勵計劃 at none against Sobo Math's 2. 自我挑戰獎勵計劃 also leads on iOS requirement (12.0 vs 15.0). Sobo Math's advantage is update cadence (every 3 days vs every 2 months). On price, ads 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. Sobo Math sells 2 in-app purchases, starting at $9.99 per month. 自我挑戰獎勵計劃 asks for nothing beyond the download.

UpkeepUpdate frequency

自我挑戰獎勵計劃 ships an update every 2 months, Sobo Math every 3 days. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 3 level
自我挑戰獎勵計劃 versus Sobo Math: the parameters behind the verdict, then further details
Parameter自我挑戰獎勵計劃Sobo Math
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size105 MB28 MB
Age rating4+4+
DeveloperBig Dipper Studiokwok wai yeung

In-app purchases

None

自我挑戰獎勵計劃

No in-app purchases

2 purchases

Sobo Math

Subscriptions2
  • 小學數學大冒險$9.991 Month
  • PRO Yearly7 Days trial$69.991 Year

Questions

Is 自我挑戰獎勵計劃 free?
自我挑戰獎勵計劃 is free to download, with no in-app purchases.
Is Sobo Math free?
Sobo Math is free to download, with in-app purchases available.
Do 自我挑戰獎勵計劃 or Sobo Math have ads?
Neither 自我挑戰獎勵計劃 nor Sobo Math shows ads.
Which is updated more often, 自我挑戰獎勵計劃 or Sobo Math?
自我挑戰獎勵計劃 ships an update every 2 months, and Sobo Math every 3 days. Most recently, 自我挑戰獎勵計劃 was updated on October 14, 2026 and Sobo Math on October 7, 2026.

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