# Z会
https://subger.com/en/service/z-kai
Category: Kids Education · Pricing verified: 2026-03-16

## Z会

Z-kai is a kids education product operated by Z-Kai, Inc.

- Operator: Z-Kai, Inc. (Z会)
- Headquarters: Shizuoka, Japan
- Founded: 1931 (correspondence-course business; digital tutoring launched in the 2000s)

2024-2026: 2025-2026 product line continues to lean on its hybrid paper-plus-tablet 'Asteria' platform, positioning against pure-digital rivals like Sumai-Lab and Smile Zemi for parents who want rigorous Japanese-curriculum coverage.

Pricing tiers (JPY):
- 小学生コース 3年生: 5984/mo
- 中学生コース 本科5教科: 10240/mo
- 大学受験 本科: 5100/mo

Links:
- Overview: https://subger.com/en/service/z-kai

— Machine-readable summary for AI search engines. Full page: https://subger.com/en/service/z-kai