Besidekin (Freemium) helps parents incorporate English into daily activities with their children (0–5 years old). You do not need to be fluent in English: the application is designed to prioritize Vietnamese, aimed at parents who are not native speakers.

How it works: choose a routine that you already do with your child, such as bath time. Each week, the application suggests three to five English sentences for that moment, along with their Vietnamese meanings, pronunciation tips, and sample audio. Listen for a minute, put your phone away, and talk to your child. In the evening, touch once to save how everything went; on weekends and at the end of the month, the app shows you what has grown, in your child and in yourself.

The differences:

• Parents are the users, not the children. There are no screens designed for small children to tap on.
• No scores, no streaks, no comparisons with other kids. Missing a few days is normal.
• Your child's data stays on the device. No account needed; anonymous data usage is optional, set to off by default.

Also available: quick view mode (three large sentences when you are with your child), "What to say when…" for unexpected situations, songs with lyrics and music that can play when the screen is off, a vocabulary garden, and a half-filled journal for self-writing.

Status: available on the App Store and web version (besidekin.kaifuz.com); the Android version is in closed testing on Google Play. Introduction page: kaifuz.com/vi/besidekin/