Your Destiny Code,
decoded by an advanced Saju engine.
518,400 unique birth structures. 562 classical sources. Multi-LLM cross-analysis. RimSaju Engine reads your structure — not your sign.
Launched April 2nd — chosen by users in 50+ countries. Rimfactory builds the world's most precise Saju engine, and offers Saju in 10 languages — a world first — free to begin.
📣 Good news to share (May 9)
In just one month since launch, we achieved three things that are extremely difficult in this category. 1. Apple App Store Approval To get a new app approved in the fortune-telling category, you must prove it offers a fundamentally different user experience and technical value. After two weeks of rigorous review, Chandler left a final message: “Enter your birthday and try a free reading. If it fails to describe you and your team, I accept the rejection. But if it does, you accept us.” The approval email arrived shortly after. (Approval = this is clearly different from other services) 2. Global Payment Infrastructure Approval (Creem) Creem supports 190+ countries as a Merchant of Record (MoR), taking direct legal responsibility for all payments. Their vetting is extremely strict, and fortune-telling services are almost never approved. Rimfactory was rejected by 7 processors. The 8th, Creem, interpreted Rimfactory not as fortune-telling but as a product built by an AI Builder · Lean Team, and accepted us into their payment ecosystem. (Approval = this is a product built by an AI Builder) 3. Invited to NVIDIA GTC Taipei Startup Day As an NVIDIA Inception member, Rimfactory has been invited to GTC Taipei Startup Day on June 2. To our knowledge, no fortune-telling company has been invited to an NVIDIA startup event. (Invitation = Rimfactory is an AI startup worthy of NVIDIA membership) We will continue researching and building so that saju can be understood more systematically.
Download on App Store →
— Soram · Reader of 5,000-year patterns —
How It Works
Three simple steps to unlock your cosmic blueprint
Enter Your Birth Moment
Your exact date, time, and city of birth. We calculate True Solar Time for precision.
Decode Your Four Pillars
Our engine maps the cosmic energy state at your birth into 8 characters across 4 pillars.
Receive Your Cosmic Blueprint
Get a hyper-personalized analysis of your personality, career path, love life, and fortune cycles.
Built Different from Day One
Your clock says 2:00 PM. But the sun over Seoul is 32 minutes behind Tokyo's meridian. That 32 minutes can shift your Hour Pillar entirely. We correct for your city's longitude — most saju sites don't.
Other saju sites match your birth date to pre-written paragraphs stored in a database. We generate every reading from scratch — a multi-engine AI pipeline analyzes your unique Four Pillars in real time, with 5-stage fallback to ensure zero failures.
滴天髓 · 穷通宝鉴 · 子平真诠 · 渊海子平 · 格局论命 — 2,000+ years of theory, split into 562 passages, embedded as 1,536-dimensional vectors. Your birth chart is converted to the same vector space, and the most relevant classical insights are retrieved and woven into your reading. Every interpretation has a traceable source.
Your free reading is genuinely free — no credit card, no trial, no catch. If you want deeper analysis, it's a one-time $9.99 payment. You keep it forever. No monthly fees, no recurring charges.
Why Saju Is Different
See how K-Astrology compares to traditional Western zodiac
Western Zodiac
- 12 Types
- Based on sun position
- Monthly predictions
- Generic advice
- No source attribution
K-Astrology (Saju)
- 518,400 Types
- Based on full cosmic state
- Daily precision readings
- Hyper-personalized guidance
- Grounded in classical texts