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Words come to you.
Choose your learning hours and meet vocabulary in gentle reminders.
Dayyoo is loading this page now.
Dayyoo puts useful words on your phone throughout the day—then helps you hear them, use them, and remember them when you open the app.
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This book contains a lot of useful information.

Mandarin lessons come with the app, so your first learning moment can start offline.
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Choose your learning hours and meet vocabulary in gentle reminders.
Home Screen and Lock Screen widgets turn every glance into a tiny lesson.

Learning hours keep Dayyoo helpful during your day and peaceful at night.
Explore Mandarin words with pinyin, English meanings, example sentences, and practice that helps you remember.
Hear Mandarin pronunciation using the voices on your iPhone.
Example sentences help connect a word with its meaning.
Check your recall with a short quiz, then try guided writing.
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This book contains a lot of useful information.
Try all four Mandarin samples. Saving and practice are available in the iPhone app.
Watch stroke order, then trace Mandarin characters at your own pace.

Save what matters, revisit full word cards, and watch small daily moments add up.
words learned

Start with three new words a day for free. Plus removes the daily limit when you want to keep learning.

$7.99 / month
$59.99 / year
The seven-day trial is available on the annual plan for eligible subscribers. Monthly renews at US $7.99/month; annual renews at US $59.99/year after any eligible trial, unless cancelled. Apple shows your price and eligibility before you subscribe.
Yoo's Room gives your daily learning a cozy place to come home to.
Start a lesson from Today and practice something new.
Spend a moment with your red-panda study companion.
Arrange the decorations you own in Yoo's Room.
♥ Small learning moments, with a familiar friend.
Dayyoo is coming to iPhone.
