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B4SAI vs TangoEra

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

B4SAI compared with TangoEra
Detail B4SAITangoEra logo TangoEra
What it doesFree AI tools, web utilities, calculators and practical technology guides for everyone Written BaZi readings: reflective, not fatalistic
StageNot given Not given
FoundedNot given Not given
Based inIN HK
Pricing modelFree Paid
PricingNot given Written Reading: $49 USD one-time payment, delivered within 48 hours. Live Session: $249 (not yet available, waitlist only). Companion: planned for 2027. Free Element Check available.
Key features
  • AI tools for writing, prompts, content and productivity
  • SEO tools for meta tags, schema and keywords
  • Image compression, resizing and optimization tools
  • Text tools for counting, formatting and transformation
  • Student learning and study utilities
  • Finance, maths and health calculators
  • QR code generator
  • Meta tag generator for SEO
  • Word and character counter
  • Age and percentage calculators
  • Four-pillars chart calculation from birth time and location
  • Day Master element identification
  • Ten Gods analysis showing chart structure
  • Element balance assessment
  • Three-year cycle map with themes
  • 2,000-word PDF written report
  • 14 days of email follow-up questions
  • Solar-term calendar method
  • Free Element Check for Day Master only
  • 48-hour delivery guarantee
What makes it different
  • Fast, lightweight interfaces
  • Privacy-friendly with browser-first utilities
  • Mobile-responsive on every screen
  • Completely free to use without friction
  • Practical information about AI tools with real-world use cases
  • Explicitly non-fatalistic interpretation: describes tendencies and cycles, not predictions or verdicts
  • Every interpretation names the chart characters it comes from for verification
  • Cultural and reflective approach avoiding fear or urgency
  • No supernatural claims or remedies to purchase
  • 30-day money-back guarantee with rewrite option
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)1 no change since last check12 no change since last check
Trust Flow (Majestic)14
Citation Flow (Majestic)2019
Referring domains (Majestic)66

5 details filled in for both companies.

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