Try Batchim Master first, write one review.
Batchim Master — 18 lessons on sounds that don’t match the spelling. 30 people try it first and each leave one review.

- Apply
Use the form below. Kids, adults, families, teachers.
- Results
30 testers. Codes go out by email.
- Test
Two weeks with the 18 Batchim Master lessons.
- Review
One post in the community board, or an App Store review.
What you get
- Batchim Master, free
The ₩4,400 pack unlocked by code. It stays yours afterwards.
- Your name on the board
If you like, we introduce your review by nickname.
- Next packs first
New lesson packs reach testers first.
What we ask
- Two weeks of use
At least half of the 18 lessons.
- One review
One thing you liked, one thing to fix — that’s enough.
- A short survey
Three minutes, by email.
Apply
2026-09-29 – 2026-10-12
We use your details only to run the programme (sending codes, the survey) and delete them when it ends. For children we ask only an age band. Batchim Master unlocks once app update 2.3 is approved; codes are sent the moment it is.