Smart Clocks vs KnowClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Smart Clocks
This educational app helps children learn about clocks and time through interactive exercises. It features engaging activities for practicing time-telling, writing, and understanding time intervals with voice and text instructions.
- Observe time changes with interactive hands
- Practice writing time from clock indications
- Draw clock hands from digital displays
- Calculate time before or after a given period
- Determine time between two clock indications
- Text and voice instructions for all modules
- Animation demonstrations of clocks
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This is a app that helps kids understand clock and time. Practice time questions in an interactive way through a cute interface. 1 Observe the time changes by turning the hour and minute hands. 2 Practice writing the time through the clock indication. 3 Practice drawing the clock hands through digital display. 4 Write the target time before or after a period of time. 5 Write the time between two clock indications. Each module has text and voice instructions. The correct answer will be given for each question, which is convenient for checking. Some questions will give animation demonstrations of clocks.
KnowClock
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KnowClock takes children aged 2-8 from reading a clock face to actually using time, across seven levels that build on each other. - Full Chinese voice guidance: kids can play on their own, no reading required - Age-based difficulty: whole hours for toddlers, half hours next, then five-minute precision and time math - Works fully offline. No ads, no third-party SDKs, no personal data collected - Every purchase and settings entry is behind a parent gate Seven levels 1. Recognise: learn the hour, minute and second hands 2. Listen: hear the time spoken, pick the right clock 3. Match: connect times to daily routines like breakfast and bedtime 4. Challenge: ten mixed questions scored by accuracy 5. Set the hands: drag both hands to the correct position 6. Find the time: read a description, pick the matching clock 7. Calculate: work out elapsed time and end times, bridging into primary school maths Time-sense training Six activities build an intuition for how long a minute really is: hourglass, one-minute challenge, beat challenge, time race, scene countdown and head-to-head duel. My Schedule A 24-hour ring shows the whole day at a glance, so children can see what comes next. Assessment and weekly reports Fifteen questions measure five skills, shown on a radar chart. Every week you get practice time and stars earned, ready to save and share. Printable worksheets Age-appropriate exercises you can print and practise on paper. Peace of mind for parents - Daily time limit with a rest reminder - Parent gate with a maths challenge blocks accidental purchases - Fully offline, no sign-in - No personal data collected, no advertising identifier Who it is for Ages 2-4: start with what a clock looks like Ages 4-6: read whole and half hours Ages 6-8: master five-minute precision and time calculation Privacy Policy: https://github.com/wangzz/md-doc/blob/main/KnowClock/PRIVACY_POLICY.md Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Smart Clocks at none against KnowClock's 3. Smart Clocks also leads on iOS requirement (12.0 vs 16.0). On price, update cadence, 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. KnowClock sells 3 in-app purchases, starting at $0.99 per month. Smart Clocks asks for nothing beyond the download.
Smart Clocks ships an update every 4 weeks, KnowClock fortnightly. The most recent releases landed on October 30, 2026 and November 9, 2026 respectively.
| Parameter | Smart Clocks | KnowClock |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 86 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Yan Xu | 中周 王 |
In-app purchases
Smart Clocks
No in-app purchases
KnowClock
- 月订阅$0.991 Month
- 年订阅3 Days trial$2.991 Year
- 终身解锁$4.99
Questions
Is Smart Clocks free?
Is KnowClock free?
Do Smart Clocks or KnowClock have ads?
Which is updated more often, Smart Clocks or KnowClock?
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