Investor Relations · 2026
FLOAT built RIDM, an AI memory engine, and put saju on top of it. The app (INTA), the course (SAJU Academy), the API and the agent platform (RIDM AI) are not separate businesses — they are different routes selling the same engine.
One Engine · One Domain
FLOAT is not a company doing many things. We built a real AI memory engine (RIDM) and put saju on top of it. App, course, API, agent — just different routes selling the same engine.
01 SAJU
Saju Domain
RIDM ENGINE
The RAG & long-term memory AI engine under every product
The saju calculation engine is one shared module — INTA and HRUM run the same code, and INTA, the API and SAJU Academy share one interpretation DB. Each new product leaves the engine untouched and adds one more route to market.
01
Koreans consult saju all their lives. Yet most of it ends as a five-second “daily fortune”, and reading quality varies from person to person. The demand is there. The engine is missing.
₩4T / yr
Korean fortune-telling market
Source: Korea Traditional Feng Shui Culture Association, 2023
19M
Cumulative users of Jeomsin — proof of mobile saju demand
Source: Jeomsin public figures
220M
Global Hallyu fans — the next market for K-fortune
Source: KOFICE, 2024
Global big tech struggles to enter fortune-telling, and Korean platforms stop at a daily horoscope corner. A team with both an accurate calculation engine and an AI that remembers becomes the infrastructure of this market.
02
Clashes, combinations and luck cycles are formulas. A deterministic rule engine computes the four pillars, Zi Wei and natal charts; the LLM only adds the voice. Hallucination is blocked by design.
The saju engine is one shared module — INTA and the API run the same code, and INTA, the API and SAJU Academy share one interpretation DB. A new product costs one more route to market.
On top of RAG and long-term memory (RIDM Memory), the AI Dongja remembers each user’s chart and past conversations. Patent granted for character-based expert agents (KR 10-3009272).
INTA’s core architecture is patent-pending, alongside trademarks for INTA and AI Dongja.
03
Saju is the core; the same engine also opens up as general AI. Eng Helper is a small idea product.
| Route | Product | Revenue | Status |
|---|---|---|---|
| B2C app | INTA “Life is Timing” | Subscription + in-app points | Live |
| Education | SAJU Academy | Monthly subscription + AI question credits | Launching soon |
| One-stop platform | HRUM | Usage credit for saju & AI APIs + app hosting plans | Live |
| AI builder | RIDM AI · Apps · Memory | Engine inside HRUM — billed via memory API and hosting | Live |
| Side | Eng Helper | App | Live |
HRUM — one-stop app platform
With HRUM alone you get app hosting (RIDM Apps), databases, saju APIs and AI APIs — one account, one credit balance. Whether it is a saju app, an AI character that remembers, or a plain members-only web app, build it, ship it and run it without signing up anywhere else.
Saju API
The same saju engine as INTA. Send a birth date and time and get the four pillars (useful god, structure, luck cycles), Zi Wei, compatibility, natal chart, lifetime reading, dream reading and AI saju readings back. Four pillars: ₩50 per call.
AI API
GPT, Gemini and Claude models plus image generation on one key. Works with the OpenAI SDK as-is.
RIDM Memory
Prefix any model name with ridm/ and each user's conversations are remembered. Infinite sessions, no vector DB to run.
RIDM Apps
Connect a GitHub repo and every push builds and deploys automatically. With a Dockerfile, Next.js or any stack runs. Free plan to start; always-on from Basic at ₩19,900/month.
GitHub→auto build→my-app.ridm.ai
Database
Every app gets its own database automatically — Seoul region, connection string injected, backups included. Build sign-up and login on it.
Console
API keys, usage and top-ups, build logs, environment variables and databases in one place. Try the playground before signing up.
curl https://api.hrum.ai/api/v1/partners/v1/chat/completions \
-H "X-Partner-Api-Key: pk-..." \
-d '{"model":"ridm/gpt-5.6-terra",
"messages":[{"role":"user","content":"How is my luck this year?"}],
"user":"user-123"}'Drop ridm/ and the same request runs on the original model (resale).
Live reference
The fortune app “Life is Timing” (INTA) runs on this exact stack.
3 free vibe-coding ebooks (Korean)
04
FLOAT Co., Ltd. founded
KOSME youth start-up fund, ₩100M
RIDM AI app launched — character AI that remembers
POWER KOREA Grand Prize · Herald Innovation Award (Nov)
Selected for the national advanced GPU support program
INTA “Life is Timing” launched — entering saju AI
6 trademarks registered (incl. AI Dongja)
RIDM AI patent granted (KR 10-3009272)
Selected for Anthropic’s Claude Startups program
HRUM (hrum.ai) launched · saju09.com official launch imminent
05
saju09.com is about to launch officially. The next step for INTA users: from reading saju to learning it.
Servers, databases, saju and AI on one account for any app. Vibe-coding ebooks bring in non-developers too.
Open “Korean fortune”, already familiar to Hallyu fans, through INTA in Korean, English, Japanese and Thai. Cultural export, not translation.
06
07
CEO Jang Cheong-il — a full-stack developer of 20 years who builds the engine, app and API in-house and promotes them on the 「청일」 YouTube channel (22K subscribers). The founder is the first user and the strongest marketing channel.
Meet the team →For investment, partnership or API inquiries, email us. Detailed metrics are shared in meetings.