Step-by-step lessons
From o'clock to half past, five minutes and single minutes — at each child's own pace.
JettaeLearn to tell time, through play
O'clock, half past, five minutes, one minute. Children learn to read an analog clock on their own as they travel through an amusement park, one stop at a time — with a friendly voice, games and sticker rewards along the way.
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How children learn
Practice through play
Four games — reading, matching, blocks and number line — turn review into fun.
A voice that reads aloud
Not reading yet? No problem. Instructions and buttons are read out loud.
Sticker rewards
Every finished stage earns an amusement-park sticker to collect.
Phone or tablet
Designed for a wide landscape screen, so learning feels comfortable on phones and tablets alike.
Parent summary
See at a glance how far your child has come.
Our promise to parents
No ads
Nothing interrupts your child's learning.
No data collection
No sign-up. Progress stays on the device. No analytics or tracking tools.
Grown-up check before purchases
The purchase screen and external links sit behind a check only adults can pass.
Buy once, keep it
Try part of the app for free, then unlock everything with a single purchase. No subscription.
App information
- Recommended age
- Ages 4 to early elementary
- Languages
- 한국어, English, 日本語
- Price
- Free download · One-time purchase for full access
- Devices
- iPhone, iPad, Android phones & tablets