現代小數 AR 2 vs Sobo Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
現代小數 AR 2
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「現代小數 AR 2」App可在平板電腦或手機使用「現代教育研究社」所提供的現代小學數學AR學習資源。安裝本應用程式後,只需運用程式內的掃瞄器,對準每單元的引入頁,便可開啟生動有趣的學習內容。 *需配合「現代小學數學 (第二版) 」二年級各冊課本使用 *本程式須使用配備A9 CPU 或以上裝置
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: 現代小數 AR 2 at none against Sobo Math's 2. 現代小數 AR 2 also leads on iOS requirement (11.0 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. 現代小數 AR 2 asks for nothing beyond the download.
現代小數 AR 2 ships an update every 2 months, Sobo Math every 3 days. Both last shipped on October 7, 2026.
| Parameter | 現代小數 AR 2 | 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 | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 541 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Modern Educational Research Society, LTD | kwok wai yeung |
In-app purchases
現代小數 AR 2
No in-app purchases
Sobo Math
- 小學數學大冒險$9.991 Month
- PRO Yearly7 Days trial$69.991 Year









