Ancient Wisdom.
Modern Intelligence.
Rimfactory applies retrieval-augmented generation, vector similarity search, and multi-model AI validation to the world's oldest divination systems. We are building the infrastructure for computational astrology.
A $14 Billion Market.
Zero Computational Rigor.
The Status Quo
- 12 zodiac types
- Generic daily horoscopes
- No source attribution
- No verification
Our Approach
- 518,400 unique profiles
- RAG pipeline with classical texts
- Every claim cites its source
- Multi-AI cross-verification
Why Now
K-Culture Global Wave
K-pop, K-drama, K-beauty created massive cultural interest. K-Astrology (Saju) is the natural next frontier. Gen-Z's fascination with Eastern philosophy is accelerating.
AI Infrastructure Maturity
RAG, vector search, and multi-model AI reached production quality in 2024-2025. The tech stack we built was impossible just 18 months ago.
Wide Open Market Gap
Western astrology apps offer 12 types. Korean saju apps are Korean-only with dated UI. No one combines global reach + AI precision + classical text grounding.
Product Ecosystem
SajuAstrology.com
Your birth date holds a 5,000-year-old code.
AI-powered Korean Four Pillars reading. 562 classical passages from 5 foundational texts vector-matched to your birth chart in real time. Multi-LLM cross-verification.
ggmate.me
Find your destined teammates.
Saju-based gaming companion matching for competitive titles. Birth chart compatibility meets esports team-building. Expanding astrology into social networking and entertainment.
Launching April 2026
Progress & Roadmap
Company Founded
Rimfactory incorporated in Seoul, Korea
Product Development Complete
SajuAstrology.com — Next.js, TypeScript, EN/KO/JA
RAG Pipeline + Product Live
562 passages from 5 classical texts vectorized & live at sajuastrology.com
Payment + App + GGMate Launch
Payment integration + iOS/Android app + GGMate.me web launch
Japan Market Entry
Localized marketing launch targeting Japanese users
Series A Fundraising
Scaling team & infrastructure for global expansion
Southeast Asia Expansion
Thailand, Vietnam — saju culture regions
How We Monetize
One-Time Payment
Free → $9.99 → $29.99
No subscription fatigue. Users own their reading forever. Free tier drives organic growth, premium unlocks depth.
99%+ Gross Margin
~$0.01 / reading
AI inference cost ~$0.01 per reading. Serverless infrastructure scales with traffic. Near-zero marginal cost.
3 Revenue Streams
Readings + Consultation + Compatibility
Premium readings ($9.99/$29.99), consultation credits ($4.99/session), and compatibility analysis — free-to-paid conversion funnel.
Payment integration launching April 2026
Why We Can't Be Replicated
Classical Theory RAG Engine
562 passages from 5 foundational texts (滴天髓, 穷通宝鉴, 子平真诠, 渊海子平, 格局论命) — vectorized into 1,536-dimensional embeddings and matched to each user's birth chart via cosine similarity. Not a lookup table — a live RAG pipeline.
Domain-Specialized Architecture
Purpose-built saju calculation engine with true solar time correction (±15min precision). Custom embedding pipeline. 6 months of prompt optimization across 3 languages. Not reproducible by calling a generic API.
RAG + Multi-LLM Cross-Verification
Vector search injects classical passages into prompts → Gemini (interpretation) + Claude (verification). 5-stage fallback achieving 99.9% uptime. Every reading cites sources with similarity scores — verifiable, not hallucinated.
Data Compound Effect
More users → better AI quality → more users. Our corpus grows, our models improve, our moat widens. By the time competitors enter, we're years ahead.
“Time compounds our advantage into an ever-widening gap.”
From Birth Data to Classical Insight
Saju Calculation
Traditional calendar + true solar time correction
Solar TimeVector Embedding
Birth chart → 1,536-dimensional vector
OpenAI embeddingsCorpus Matching
Cosine similarity across 562 passages
pgvectorAI Synthesis
Classical sources + birth data → personalized reading
Gemini + ClaudeSaju Calculation
Traditional calendar + true solar time correction
Solar TimeVector Embedding
Birth chart → 1,536-dimensional vector
OpenAI embeddingsCorpus Matching
Cosine similarity across 562 passages
pgvectorAI Synthesis
Classical sources + birth data → personalized reading
Gemini + ClaudeThe Team
윤초연 (Chandler Yun)
CEO & Founder
“Decoding destiny with code. Comforting people with humanities.”
- •Yonsei University, Korean Literature
- •Full-stack development (Frontend / Backend / AI Pipeline)
- •Product planning, development, global marketing — full lifecycle
- •Solo architect & builder of SajuAstrology.com
- •Solo architect & builder of GGMate.me
We're hiring engineers who want to build at the intersection of ancient wisdom and modern AI.
info@rimfactory.io