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Software that
solves real problems.
Nanakoru builds practical software — from learning tools to everyday apps. We start with real problems and build things people actually use.
Focus: Practical SoftwareApproach: Build · Validate · ImproveStage: Early
What We're Building
Small teams.
Real products.
Nanakoru focuses on developing useful digital products that solve specific user problems. We start small, learn from real usage, and improve our products through thoughtful design and technology.
Our First Product
JP-Study
Available Now
JP-Study is a Japanese learning application designed to support learners as they build their language skills — from the basics of kana to more advanced vocabulary and kanji.
- Hiragana & Katakana practice
- Vocabulary builder
- Kanji introduction
- Ask Sensei (AI Q&A)
- AI sentence correction
- Progress tracking
- Free to use
More From Nanakoru
AI in JP-Study
AI that's already
helping learners.
Ask Sensei and sentence correction are live in JP-Study today — giving learners instant answers and feedback. We're building on that with more personalized, adaptive practice.
Personalized Practice
PlannedAdaptive learning paths based on individual progress and weak points.
Spaced Repetition
PlannedSmarter review scheduling so vocabulary and kanji actually stick.
JLPT Prep Mode
PlannedFocused practice sets aligned with JLPT levels.
AI Philosophy
AI that augments,
not replaces.
We use AI where it genuinely helps — making everyday tasks simpler, feedback more personal, and complex work more manageable.
Our approach: start with a real problem, then apply technology where it truly improves the experience. No AI for AI's sake.
How We Build
Our approach
to building products.
01
Start with a real problem
We focus on specific problems faced by learners and everyday users — not imaginary ones.
02
Build and validate
We develop practical products, test them with real users, and learn from feedback before scaling.
03
Improve with technology
We use technology, including AI where appropriate, to create useful and responsible experiences.
About Nanakoru
We're just getting started.
Nanakoru builds useful digital products. JP-Study is our first product and the starting point for exploring better, more personalized learning experiences.
Learn More About UsLet's Build Something Useful
Interested in our products or exploring a collaboration? We'd love to hear from you.
Contact Nanakoru