Nanzoo Clock vs Math Joy
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.
Math Joy
This app offers a fun and engaging way for children to build foundational math skills. It uses interactive games, visual aids, and a reward system to make learning numbers, addition, subtraction, shapes, and more enjoyable.
- Counting items
- Addition and subtraction
- Identifying colors and shapes
- Comparing items and positions
- Reward system with stars
- Visual aids with animals
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All-In-One educational center for your child. Learning math has never been so easy and fun and kids just love it. Math Joy will help your child build solid foundations in math and develop various skills throughout the levels. Reward system - Repeating the questions rewards the child with an extra star and ensures more practice, which leads to better skills. Entertaining and fun experience - there are many different animals, shapes, sounds and music included. Visual Aid - numbers are represented with different animals, which makes counting, adding and subtracting easier. Can be turned off. Some of the main skills your child can learn and practice with Math Joy are: - Counting items - Addition (including advanced type of questions like 3+?=8) - Subtraction - Colors - Shapes - Comparing items (same, different, fewer, more) - Positions (left, right, above, below) - Names of numbers All of these are separated into different chapters and levels with increasing difficulty for a better learning experience. Chapter One in unlocked in the Free Version. We will be constantly adding more levels, chapters and skills, so that Math Joy can be your number one partner in the long math-learning journey. Dear parents, if you have any suggestions, feature requests or just want to contact us, visit our website http://brightblueapps.com
Screenshots
Verdict
The clearest difference is review sentiment: Nanzoo Clock at 100% against Math Joy's 33%. Nanzoo Clock also leads on update cadence (every 10 days vs every 46 months). Math Joy's advantage is device support. On price, in-app purchases, monetization model 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 and Math Joy sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Nanzoo Clock ships an update every 10 days, Math Joy every 46 months. The most recent releases landed on October 23, 2026 and November 1, 2026 respectively.
| Parameter | Nanzoo Clock | Math Joy |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.4 (9 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 33.3% of reviews |
| Number of ratings | — | 9 — better |
| Update frequency | Every 10 days — better | Every 46 months |
| Ads | — | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | — | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Takafumi Sasaki | Stoyan Hristov |
Customer experience
Nanzoo Clock
Math Joy
In-app purchases
Nanzoo Clock
- Level Unlock$0.99
Math Joy
- Unlock All Levels$1.99









