For modern Chinese-diaspora couples
BaZi compatibility, done right.
Real Zi Ping (子平) rules engine. AI only as the language layer — never the interpreter. No coin wallets, no fake experts, no broken paywalls.
Why paircast
We surveyed every "Chinese astrology" app and built what they got wrong.
Real classical engine
Our compatibility engine implements 子平 method — Use God (用神), Favorable Element (喜神), Ten Gods, Five Element strength, Branch trinities and clashes — all in auditable code, not generated by ChatGPT.
AI only narrates
Every BaZi fact is computed first. The AI only translates the structured analysis into warm prose. No invented predictions, no fortune-telling theatrics.
Honest pricing
No virtual currencies, no "expert" upsell traps, no half-locked readings. One price, one complete report. Cancel any time.
Built for diaspora
Bilingual EN/中文 UI, Apple/Google Pay, multi-currency (SGD/USD/HKD), tested for Singapore, Malaysia, Hong Kong, Taiwan, and global Chinese readers.
How it works
Enter both birth details
Solar birth date + time (to the hour). We auto-convert the Chinese lunisolar calendar and derive the Four Pillars.
Six-dimensional analysis
Zodiac harmony, Day Pillar match, Heavenly Stem flow, Five Element complement, Use God complement, Shen Sha cross — out of 100.
In-depth reading + advice
AI writes a 600-word warm reading grounded in the structured analysis: personality, dynamics, challenges, concrete advice.
Pricing
No coin wallets. No "expert" upsell. One price, one full report.
Basic compatibility
- ·Both partners' Four Pillars
- ·Six-dimensional total score
- ·Deep chart table (Main/Sub Gods, Hidden Stems, 12-Stage, NaYin, Void)
- ·Five Element + Use God snapshot
Deep reading · One-shot
≈ S$39 · RM135 · HK$226
- ·6,500+ word, 13-section deep analysis
- ·Spouse Star + Marriage Palace deep-dive
- ·Ten Gods configuration + cross-pillar interactions
- ·Decade cycle compatibility + current year outlook
- ·Printable PDF · shareable with family
- ·Permanent access · bilingual EN/中文 toggle
Real Zǐpíng rules engine · LLM only narrates the structured analysis, never invents.
Unlock onceCouple subscription
≈ S$7 · RM23 · HK$39
- ·🗓 Date Picker for wedding / ROM / move-in / business / baby (6 purposes)
- ·Daily 0-100 scoring across both partners’ charts
- ·Scans up to 180 days · auto-ranks best + worst
- ·Works on every report on your account · cancel any time
- ·Local masters charge S$300+ per single date — unlimited here
Subscription expands over time (monthly briefing, Q&A, additional pairings)
Subscribe — $4.99/moFAQ
Is BaZi compatibility scientific?
We don't claim BaZi is science. It's a centuries-old Chinese cultural framework that some couples find useful as a reference perspective for understanding each other. The decision is always yours.
Why do you need the exact birth hour?
The Hour Pillar (时柱) is determined by birth hour and directly affects Day Master strength assessment and Use God selection. If you only know an approximate range, accuracy decreases but the calculation can still proceed.
Will the AI hallucinate?
No. Our engine computes every BaZi fact (Use God, Favorable Element, Five Elements, Shen Sha) using classical Zi Ping logic. The AI only translates these structured facts into language; it cannot invent content not provided.
Is my data safe?
Birth information is only used to generate your report. We don't sell it, don't use it for model training, and don't retain identifying data outside your account.
How are you different from other BaZi apps?
No talisman shop, no virtual currency upsell, no "expert" consultation traps. Our logic is open and auditable, pricing is transparent, and the UI is built for diaspora users — not 1990s mainland portal aesthetics.
Why we built this
I'm an engineer in Singapore. While discussing "should we get our BaZi checked" with my partner, I found that every existing app was either ad-laden mainland Chinese software, or shallow ChatGPT-generated content. The Chinese diaspora had no serious BaZi compatibility tool. So I built paircast — taking real classical Zi Ping logic and turning it into transparent code, so modern couples can engage with this thousand-year-old framework with respect for both tradition and modern UX.