They already speak Mandarin at home.
Now let’s build on that.
Your child understands Grandma. They order at the restaurant without thinking. That oral foundation is real—and it’s more than most language learners ever get.
The next step is connecting what they hear to what they can read. That’s what MandarinBytes is for.
Get Early AccessLaunching soon on iOS. Free to start.
Your child isn’t starting from zero.
Their app shouldn’t either.
Most Mandarin apps are built for foreign language learners—they start with “hello” and teach tones as if the learner has never heard them. That’s not your child.
Heritage learners carry years of kitchen-table Mandarin, bedtime stories, overheard phone calls. They have a deep well of implicit knowledge—pronunciation, sentence rhythm, vocabulary they recognize but can’t read. What they need isn’t a beginner course. It’s a bridge from what they already know to reading, writing, and the confidence to keep using it.
MandarinBytes starts from that foundation. Intro cards say “You already say this—here’s how it looks,” not “Repeat after me.”
媽媽
Characters introduced in the order heritage kids encounter them—not 一二三
4 Skills
Listening, reading, speaking, and writing tracked independently per character
注音
Zhuyin by default, because that’s what heritage schools actually use. Pinyin available.
What the research says about heritage language development.
And what it means for your family.
Heritage language development follows a predictable pattern. Between ages 8 and 12, school demands increase, English becomes the dominant language of social life, and the heritage language needs active support to keep growing.
Linguist Silvina Montrul’s research shows that literacy is what anchors a heritage language past age 10. Maria Polinsky found that reading ability is the strongest predictor of long-term bilingual proficiency. And Lucy Tse’s work documents ages 8–12 as a turning point in how children relate to their heritage language.
The consistent finding: children who build a foundation of ~500 characters before this window are on track for lasting biliteracy. It’s not about talent. It’s about reading practice at the right time.
Ages 4–8
Oral foundation
Ages 8–12
Literacy window
Three things most apps get wrong.
Placement that respects what they know.
Heritage learners don’t fit neatly into “beginner” or “intermediate.” MandarinBytes uses adaptive placement that calibrates across listening, reading, and speaking—separately. A child who understands spoken Mandarin but can’t read a single character gets the right challenge in both skills.
Practice that fits real life.
Sessions deliver meaningful practice in as little as five minutes. Mix of on-screen and printable worksheets, so families who limit screen time aren’t locked out of daily practice. No streak guilt. No punishment for missed days. When your child comes back after a break, it feels like a fresh start—not a pile of overdue homework.
Built for Traditional Chinese and zhuyin.
We follow curricula used by heritage schools and families (Huayu World, Sagebooks) and use zhuyin as the default phonetic system—because that’s what heritage learners in the US and Taiwan actually use. Pinyin is available as an option, not forced as the default.
Is this right for your family?
MandarinBytes is for heritage Chinese families—children who hear Mandarin at home and need structured practice to keep it. Traditional Chinese, zhuyin, iOS first.
If your child is learning Mandarin as a completely new language with no home exposure, we’re probably not the best fit—and we’d rather be honest about that.
Get early access
We’re putting the finishing touches on MandarinBytes. Join the waitlist and we’ll send you:
Early access when we launch—before the app hits the App Store
“The Heritage Language Window”—a free guide summarizing the research on heritage language attrition and what families can do about it
No spam. Just launch updates and the occasional research-backed article.
You’re on the list. We’ll be in touch.
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Research cited on this page
- Montrul, S. (2008, 2016). Incomplete Acquisition in Bilingualism and The Acquisition of Heritage Languages. Cambridge University Press.
- Polinsky, M. (2011). Reanalysis in adult heritage language. Studies in Second Language Acquisition.
- Tse, L. (2001). Resisting and reversing language shift. Harvard Educational Review.
- Shu, H. et al. (2003). Properties of school Chinese. Child Development.