Comparison

SunnyWalker 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

SunnyWalker

Features
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Your child wakes up to your gentle voice — not a jarring buzzer SunnyWalker is an alarm clock made just for kids. Record a quick "Good morning, sweetheart — time to get up!" and tomorrow your child wakes to YOUR voice, even while you're busy making breakfast. WHY KIDS NEED THEIR OWN ALARM Snoozing, morning grumpiness, the daily before-school battle… Giving your child their own alarm clock is the first step toward waking up independently. When it's mom or dad's voice, getting up stops being a command and becomes a loving routine. KEY FEATURES • Parent-voice alarm: your recording rings as the alarm sound, even on the Lock Screen • Two ring modes for every kid: – System Alarm: keeps ringing until stopped — wakes even the deepest sleeper – Gentle Reminder: rings for 30 seconds, then stops by itself — great for naps and homework time • Voice passphrase: the alarm only turns off after your child says the magic phrase — so you know they're really awake • Wake-up history: see what time your child got up every day and watch the progress • Charming illustrated style: an adorable character greets your child each morning • Available in English and Traditional Chinese PARENTS CAN RELAX • Designed for children (Made for Kids) • No ads • No personal data collected SUNNYWALKER PRO (OPTIONAL) A one-time purchase that unlocks everything forever, with Family Sharing: • Unlimited alarms (10 on the free version) • Unlimited custom ringtones (5 on the free version) • Longer ringtones and recordings The upgrade lives behind the parental gate in Settings, so kids can't buy by accident. Core features are free forever. Every morning, let your child wake up inside your voice. Download SunnyWalker — goodbye morning battles, hello sunshine

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

SunnyWalker4 screens
Sobo Math4 screens

Verdict

The call

The clearest difference is in-app purchases: SunnyWalker at none against Sobo Math's 2. SunnyWalker also leads on update cadence (daily vs every 3 days). Sobo Math's advantage is iOS requirement (15.0 vs 26.0). 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. SunnyWalker asks for nothing beyond the download.

UpkeepUpdate frequency

SunnyWalker ships an update daily, Sobo Math every 3 days. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 3 level
SunnyWalker versus Sobo Math: the parameters behind the verdict, then further details
ParameterSunnyWalkerSobo Math
PriceFreeFree
Update frequencyDaily — betterEvery 3 days
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size13 MB37 MB
Age rating4+4+
DeveloperRUEI YI WUkwok wai yeung

In-app purchases

None

SunnyWalker

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 SunnyWalker free?
SunnyWalker 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 SunnyWalker or Sobo Math have ads?
Neither SunnyWalker nor Sobo Math shows ads.
Which is updated more often, SunnyWalker or Sobo Math?
SunnyWalker ships an update daily, and Sobo Math every 3 days. Most recently, SunnyWalker was updated on September 24, 2026 and Sobo Math on September 20, 2026.

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