We build performant, practical software. We started in optimization — making systems measurably faster — and now apply that same rigor to products people rely on every day.
A speedup you can measure is worth more than a story you can tell. We hold ourselves to that standard across everything we ship — from low-level performance work to the software our customers run their businesses on.
Every improvement is benchmarked. We optimize what matters and prove it with numbers.
Tools that earn their place in a real workflow — not demos that impress once.
Sound foundations, so the things we build keep working as they grow.
A focused portfolio — each product solves a real, recurring problem with care.
AI-native cloud accounting for small and mid-sized businesses across Japan and APAC. A correct double-entry engine, with AI and automation layered on top.
Speaking & writing practice with honest, calibrated AI scoring for IELTS, TOEFL and the Duolingo English Test — the two skills you can't grade yourself.
Step-by-step online incorporation for Japanese companies: choosing the entity type, basic details, live cost estimates, a draft of the articles of incorporation, and the filing flow. All input stays in your browser.
Corporate details. For any documentation request, contact us and we will respond promptly.
Questions, partnerships, or press — we'd love to hear from you.