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.
自我挑戰獎勵計劃
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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。
Sobo Math
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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
Verdict
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
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.
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.
| Parameter | 自我挑戰獎勵計劃 | Sobo Math |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 105 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Big Dipper Studio | kwok wai yeung |
In-app purchases
自我挑戰獎勵計劃
No in-app purchases
Sobo Math
- 小學數學大冒險$9.991 Month
- PRO Yearly7 Days trial$69.991 Year









