Nanzoo Clock vs Smart Clocks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nanzoo Clock
This educational app teaches children aged 3-7 how to tell time using interactive clock activities. Users can select animal clocks and practice setting and reading time with adjustable difficulty levels.
- Interactive animal clocks
- Set the time activity
- Read the time activity
- Adjustable difficulty levels
- Parent gate for purchases
- No ads or tracking
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Nanzoo Clock is a clock-learning app that helps children practice reading and setting the time in a fun way. Choose your favorite animal, and it becomes a clock. Children can learn step by step with the hour hand, minute hand, clock face, numbers, and voice guidance. Recommended for children around ages 3 to 7. Supports five languages • App text and time voice guidance are available in Japanese, English, Korean, Spanish, and Portuguese. • You can change the app display language from the settings screen. • It can be used at home or as a gentle way to experience another language. Start with your favorite animal! • Choose from a lion, frog, or rabbit. • The animal you choose appears as a clock. • Friendly animals make learning the clock feel fun and approachable. Practice with two activities! • “Set the Time” lets children adjust the clock to match the displayed time. • Move the minute hand by dragging it, or use the plus and minus buttons. • “Read the Time” lets children read the time shown by the clock hands. • Tap the time numbers or use the plus and minus buttons to change the answer. • Tap the solve button to check the answer. Step up with levels! • Easy mode is free to play. Practice with times that move in 5-minute steps. • Normal mode lets children practice more precisely with 1-minute steps. • Challenge mode hides the helper marks on the clock face for a more advanced exercise. • Normal and Challenge modes can be unlocked with a one-time in-app purchase. Designed for children and families • No ads. • No account registration. • No third-party tracking. • The purchase screen is placed behind a parental gate. • The in-app purchase is a one-time purchase that unlocks Normal and Challenge modes.
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.
Screenshots
Verdict
The clearest difference is in-app purchases: Smart Clocks at none against Nanzoo Clock's 1. Smart Clocks also leads on device support. Nanzoo Clock's advantage is update cadence (every 10 days vs every 4 weeks). On price 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. Nanzoo Clock sells 1 one-off in-app purchase. Smart Clocks asks for nothing beyond the download.
Nanzoo Clock ships an update every 10 days, Smart Clocks every 4 weeks. The most recent releases landed on October 1, 2026 and September 19, 2026 respectively.
| Parameter | Nanzoo Clock | Smart Clocks |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 10 days — better | Every 4 weeks |
| Ads | — | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | — | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 86 MB |
| Age rating | 4+ | 4+ |
| Developer | Takafumi Sasaki | Yan Xu |
Customer experience
Nanzoo Clock
Smart Clocks
In-app purchases
Nanzoo Clock
- Level Unlock$0.99
Smart Clocks
No in-app purchases
Questions
Is Nanzoo Clock free?
Is Smart Clocks free?
Which is updated more often, Nanzoo Clock or Smart Clocks?
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