SajuAstrology
AI Companion: Self-Discovery
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
SajuAstrology — AI Companion for Self-Understanding
A 5,000-year-old statistical framework for analyzing human disposition patterns, decoded by modern AI infrastructure.
WHAT THIS APP IS
SajuAstrology is a self-understanding companion built on a proprietary RAG (Retrieval-Augmented Generation) system trained on 562 hand-curated passages from five foundational classical Eastern philosophy texts. Every analysis is generated in real time through parallel inference across three frontier AI models, uniquely personalized to each user's birth pattern.
This is not a horoscope app. The classical Eastern systems underlying this app — known as myeongni (命理學) or BaZi — were developed in pre-modern East Asia as a statistical taxonomy of human disposition based on time-coded data: year, month, day, and hour of birth combined into 518,400 unique pattern combinations. It is closer to data science than to divination.
WHAT MAKES THIS DIFFERENT
Unlike apps that match user input against pre-generated text databases, every reading in SajuAstrology is generated in real time through:
- Real-time RAG retrieval over 1,536-dimensional vector embeddings of 562 classical passages from five foundational texts (滴天髓, 窮通寶鑑, 子平眞詮, 命理正宗, 淵海子平)
- Parallel inference across three frontier AI models (Claude, GPT, Gemini) with cross-validation
- True Solar Time correction by birth-city longitude
- A domain-specific AI companion (Soram) with persistent memory and user-specific context
INDEPENDENT TECHNICAL VALIDATION
- NVIDIA Inception Program — admitted April 2026 as an Astrotech AI Startup
- AWS Activate — granted infrastructure credits
- Google for Startups Cloud — granted infrastructure credits
FEATURES
Free
- Personalized pattern analysis grounded in your birth chart
- Daily reflection prompts
- Soram, your AI companion, with one daily conversation
Go Deeper
- Full Pattern Reading ($9.99) — comprehensive analysis with classical references
- Master Sessions ($29.99) — 5 in-depth questions answered with classical citations
- Compatibility Analysis ($2.99) — pattern comparison between two profiles
- Soram Companion ($4.99/month) — unlimited conversations with persistent memory
10 LANGUAGES SUPPORTED
English, Korean, Japanese, Spanish, French, Portuguese, Traditional Chinese, Russian, Hindi, Indonesian.
ENTERTAINMENT-ONLY NOTICE
All analyses are provided for self-reflection and entertainment purposes only. Users should not make medical, legal, financial, or employment decisions based on this app.
LEGAL
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://sajuastrology.com/privacy
Built by Rimfactory in Seoul. NVIDIA Inception member (April 2026).
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's new in version 1.4.0:
- Compatibility Analysis is now available as a one-time purchase
- Improved Soram Companion subscription flow
- Cleaner upgrade screens with simplified messaging
- Stability and performance improvements
The developer, CHO YEON YUN, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- CHO YEON YUN
- Size
- 28.1 MB
- Category
- Entertainment
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Destiny Reading $9.99
- Master Consultation 5 Sessions $29.99
- Copyright
- © 2026 Rimfactory