默書皇 SpellBee vs Sobo Math
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
默書皇 SpellBee
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30 minutes of dictation every night? Let SpellBee handle it. SpellBee is the simplest dictation and spelling practice app for kids and parents. Parents add words in 30 seconds, and kids practice independently — no more sitting next to them reading words one by one. Core Features - Trilingual TTS — Cantonese, Mandarin, and English voice support - Chinese Handwriting — Authentic grid paper (田字格) for character practice - English Spelling — Type-and-check with instant grading - Repeat & Slow Mode — Replay words at normal or slow speed - Score Tracking — Star ratings to track every improvement - Wrong Word Review — Automatically collect mistakes for extra practice Why SpellBee? - 30-Second Setup — Add words and start practicing immediately - Fully Offline — No internet needed, works anywhere - Free — All core features at zero cost - Custom Word Lists — Match your school's weekly spelling list perfectly - Bilingual UI — Switch between Chinese and English anytime How Parents Use It Monday: Get the spelling list from school, add words in 30 seconds Tuesday-Thursday: Kids practice 10 minutes daily on their own Friday: Final review before the test Result: Parents save 30 minutes every evening, kids improve their scores Perfect For - Primary/elementary school students (ages 5-12) - Parents helping kids with weekly dictation - Chinese language learners practicing character writing - Students improving English spelling skills
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: 默書皇 SpellBee at none against Sobo Math's 2. Sobo Math's advantage is update cadence (every 4 days vs every 2 months). On price, ads, 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
Both are free to download. Sobo Math sells 2 in-app purchases, starting at $9.99 per month. 默書皇 SpellBee asks for nothing beyond the download.
默書皇 SpellBee ships an update every 2 months, Sobo Math every 4 days. Both last shipped on October 31, 2026.
| Parameter | 默書皇 SpellBee | Sobo Math |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Sai Wai Law | kwok wai yeung |
In-app purchases
默書皇 SpellBee
No in-app purchases
Sobo Math
- 小學數學大冒險$9.991 Month
- PRO Yearly$69.991 Year









