Piko: 写真で学ぶ中国語
簡体字・ピンイン・声調・書き順
お子さまがカメラをりんごに向けると、Pikoが端末上で認識し、中国語の名前「苹果（píng guǒ）」を表示します。見つけた言葉はカードになり、発音を聞いたり、書き順どおりになぞったり、自分だけの図鑑に集めたりできます。
身近な物が、そのまま中国語の教材に。りんごやコップ、月を撮ると、Pikoが端末内で物を認識し、中国語の名前とピンインを表示します。発音を聞き、書き順どおりになぞったら、新しい言葉を自分だけの図鑑に集めましょう。元の写真は端末内で処理され、アップロードされません。図鑑には、切り抜いた被写体だけを端末内に保存します。
Core Features
Snap to Learn
Point the camera at a toy, a cup, the moon — Piko recognizes it on-device and shows the word with pinyin, tones, and every character inside it.
Four Ways to Learn
See the meaning and pinyin, hear the Mandarin pronunciation, trace the stroke order, and explore the idea behind the character's shape.
A Growing Gallery
Every word your child snaps joins a personal gallery — a growing picture-book of the world in Chinese. Watching it fill up is the reward.
On-Device & Kid-Safe
Recognition runs on device and original photos are never uploaded. Saving a card stores only an extracted subject sticker on the device. No ads, third-party content, or account required.
Plans
Piko Pro 月額プラン
Piko Proで復習と学習進捗
Piko Pro 年間プラン
Piko Proで復習と学習進捗
FAQ
What is Piko?
Piko (also known as 拾字 / ZiTan) turns the world around your child into their first Chinese words. Point the camera at anything — an apple, a cup, the moon — and Piko recognizes it right on your device, then shows the Chinese word with pinyin and tones, plus each character inside it. Every character becomes a card your child can read, hear, trace, and keep. It's made for families raising bilingual, heritage-Chinese kids: everyday moments become a growing collection of hanzi.
Who is Piko for? Does my child need to read Chinese already?
No prior reading is needed. Piko is built for heritage-Chinese and bilingual families — from a curious first-time learner to a child keeping pace with a weekend Chinese class. Pinyin, spoken tones, and (on non-Chinese devices) English glosses mean your child can start from their very first character. Because every word begins with a real object your child already knows, each new character has something familiar to hold onto.
How does my child learn each character?
Every character opens as a four-part card, so it becomes a little story instead of a flashcard to cram: read the meaning, hear the pinyin and tones spoken aloud, trace the stroke order step by step, and see where the character came from. Piko also surfaces characters that share a building block, so your child starts to notice the radicals and character families that Chinese is built from.
What happens to the words my child collects — will they remember them?
Every word your child snaps joins a personal gallery, grouped by the day they found it, so the collection visibly grows — that's the reward, with badges along the way. To make characters stick, Piko uses spaced repetition: it brings a character back for review just before it would be forgotten. Progress is organized by grade-level common characters, aligned with what a child would learn in a Chinese classroom, so a few minutes a day really adds up.
Is my child safe using Piko? Where do the camera photos go?
Piko is designed for a 4+ audience, and your child's privacy comes first. The camera is used only to recognize objects, and that recognition happens on your device — photos are processed locally and are never uploaded to a server or saved to the cloud. There are no ads, no third-party content, no accounts, and nothing your child snaps is ever shared or made public. Piko can also show gentle eye-rest breaks during longer sessions to protect little eyes.
Do we need an account, and does Piko work offline?
No account, no sign-in, and no email — every feature works the moment you open the app, and there is nothing to log in to. The core learning flow (character cards, tracing, review, and curriculum progress) runs fully on-device, so your child can keep learning even without an internet connection.
Do I have to pay to use Piko?
Piko is free to download, and your child can start learning right away — snapping objects, opening character cards, reviewing, and following curriculum progress — with no account and no sign-in. If we ever add optional extras, the words your child has already collected and their progress always stay yours.
I still need help — how do I contact support?
Email us at [email protected] with your question, your child's device model, and its iOS version, and we'll get back to you — usually within 1–2 business days. We read every message, whether it's a bug, a character that didn't look right, or an idea for Piko.