Evelyn AIAI products that genuinely help people

AI products that
make life better.

We build intelligent tools for personal guidance, real estate, pilgrimage, and brain training — products that genuinely help people make better decisions.

Designed in Taiwan. Built for the world.

See our productsOpen Tsukisumi Card →
4
Live products
18
Pilgrimage routes
21
Brain games
47
Japan prefectures

Latest Projects

Four live products.

Tsukisumi Card, Sumika, Sacred Trails, and NeuraCraft are live and independently useful, each built to solve a specific real-world problem.

Live
🔮
Tsukisumi Card 月澄みカード

Japanese Oracle & Tarot Companion

A calm Japanese oracle-card experience for love, work, naming, and yearly questions. Start anonymously, draw a card, save the case, and unlock deeper readings when store review is ready.

Web liveiOS uploadedPWA
Open Tsukisumi Card
Live
🏠
Sumika スミカ

Japan Real Estate Intelligence

Professional due diligence reports for Japanese properties. Flood risk, legal checks, price history, and yield analysis — delivered in 7 pages, in 5 languages.

¥14,800 / report47 prefectures5 languages
Explore Sumika
Live
⛩️
Sacred Trails セイクリッドトレイルズ

Pilgrimage Route Companion

Offline guide for Camino de Santiago, Kumano Kodo, Shikoku Henro, and 15 more routes. Stage-by-stage navigation, route stories, and sacred-site context with no internet required.

18 routes10 languagesOffline
Visit Sacred Trails
Live
🧠
NeuraCraft 脳活革命

Classic Brain Games

21 classic mini-games including Sudoku, 2048, Memory, Chess, Xiangqi, Huarong, Crossword, and Haiku. Offline, ad-free, and designed for a calm daily training routine.

21 games8 languagesApp Store
Visit NeuraCraft

Our Philosophy

We build things
worth building.

Each Evelyn AI product is independently useful — not a bundle, not a platform play. We focus on one question: does this make someone's day better?

If yes, we ship it. If not, we kill it. No attachment, just results.

🎯
Real problems only
Every product starts with a genuine pain point. Not a technology looking for a use case — a problem looking for a solution.
🌍
Built for many languages
Great tools should work for everyone. We build with internationalization from day one — Japanese, English, Chinese, Vietnamese, and more.
AI as infrastructure
AI is the engine, not the feature. We use it to process more data, move faster, and deliver quality that would otherwise take a large team.
💎
Quality that earns trust
We'd rather ship fewer products done right than many products done carelessly. Our users pay with their time and trust — we take that seriously.