Made for Android E‑Ink

First words,
playfully learned.

KaiPlay (formerly BabyVocab) helps parents grow a child’s vocabulary through short, safe, lively sessions — calmer and more bounded than an endless video feed. Delight without addiction; wellbeing over watch time.

In development for Android E‑Ink

ANDROID · E—INK

Active learning, not passive watching

Every session asks the child to look, listen, tap, choose, or celebrate a word — never just stare at a feed.

Delight without addiction

Motion, sound, and reward are used gently. No infinite scroll, no autoplay traps, no variable-reward loops.

Wellbeing over watch time

E‑ink and low-light friendly, reduce-motion aware, with quiet hours and parent-set session limits (5–15 min).

What’s inside

Lively cards, gentle games

Lively flashcards A clear image, spoken word, and short gentle motion — crisp even on grayscale E‑Ink displays.

Playful practice Listen-and-tap, find-the-word, and match-sound-to-image games that keep learning active.

Healthy sessions Finite rounds with satisfying endings, quiet mode, cooldown breaks, and parent-set length.

Parent studio Create or import themed decks, choose English, Vietnamese, or both, and review what was practiced.

Progress memory KaiPlay remembers seen words, favorites, repeats, and words that need another look.

Bilingual, low-distraction Large touch targets, forgiving taps, and clean audio — built for little hands and paper-like screens.

For Parents

You decide what matters

Parents choose the words, build decks quickly, set daily screen duration (5–15 mins), and see what their child has practiced. Setup lives behind a parent gate, keeping the child zone safe.

Read Privacy Policy

Parent Gate Protected settings area

Session Limit 5, 10, or 15 mins

Offline First No internet needed to play

Bilingual Decks English & Vietnamese