Comparison

Nanzoo Clock vs Smart Clocks

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Interactive animal clocks
  • Set the time activity
  • Read the time activity
  • Adjustable difficulty levels
  • Parent gate for purchases
  • No ads or tracking
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

Nanzoo Clock4 screens
Smart Clocks4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Nanzoo Clock sells 1 one-off in-app purchase. Smart Clocks asks for nothing beyond the download.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
Nanzoo Clock versus Smart Clocks: the parameters behind the verdict, then further details
ParameterNanzoo ClockSmart Clocks
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—1 — better
Update frequencyEvery 10 days — betterEvery 4 weeks
Ads—No
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Devices—iPhone, iPad, iPod — better
Requires iOS13.012.0 — better
Further details — not scored
Size38 MB86 MB
Age rating4+4+
DeveloperTakafumi SasakiYan Xu

Customer experience

Nanzoo Clock

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Smart Clocks

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Nanzoo Clock

One-time1
  • Level Unlock$0.99
None

Smart Clocks

No in-app purchases

Questions

Is Nanzoo Clock free?
Nanzoo Clock is free to download, with in-app purchases available.
Is Smart Clocks free?
Smart Clocks is free to download, with no in-app purchases.
Which is updated more often, Nanzoo Clock or Smart Clocks?
Nanzoo Clock ships an update every 10 days, and Smart Clocks every 4 weeks. Most recently, Nanzoo Clock was updated on October 1, 2026 and Smart Clocks on September 19, 2026.

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