Write letters to real people learning your language.
AI tracks your mistakes so you never repeat them.
Deeper than chat. More human than AI tutors.
A pen pal app built for serious language practice.
Launching first for Korean ↔ English learners.
How It Works
Three steps. No complexity.
Paired with someone learning your native language, and you learn theirs.
Letters arrive instantly. No read receipts. Reply at your own pace.
AI corrects your grammar and tracks your recurring mistakes over time.
Why Paltree
Tools that actually help you learn.
Most tools correct you once and forget. Paltree tracks your error patterns so you stop repeating them.
A personal dashboard shows your most common mistakes and how they decrease over weeks and months.
Tap any unfamiliar word in a letter to save it. Review it later with reminders.
Starting with Korean ↔ English. More languages coming soon.
Free during early access · No spam, ever