M91 vs Ancient Echoes
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
M91 compared with Ancient Echoes
| Detail | 
M91 | 
Ancient Echoes |
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| What it does | Human-in-the-loop approval for AI agents
| AI-powered platform for BaZi, Zi Wei Dou Shu, Western astrology, Tarot, and Chinese classics reading
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| CN
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| Pricing model | Free
| Freemium
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| Pricing | Free forever with all features included
| Reader Pro $7.99/month or Reader Master $14.99/month for subscriptions. Personal packs: BaZi quick reading $5.99, BaZi/Zi Wei standard deep pack $14.99, BaZi naming pack $14.99, Annual life strategy pack $34.99, BaZi relationship matching pack $19.99, Divination single-question pack $4.99, Election
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| Key features | - Alerts on iPhone and Android with answer buttons
- Phone call escalation for high and critical alerts
- Breaks through silent mode and Do Not Disturb
- Attachments and notes on every alert
- Broadcast to a channel with one person taking ownership
- See who acted and who ignored alerts
- Answer buttons set by you or your AI
- Callback webhooks to return answers to your code
- Setup via pasted prompt or API key-free send link
- Integration with AI frameworks, automation platforms and HTTP API
| - BaZi Charting and calculation
- Zi Wei Dou Shu Charting
- Seven Luminaries Charting
- Western Natal Astrology
- Tarot Spread Reading
- Liuyao Divination
- AI Chart Interpretation
- Digital Classic Reading
- Cross-platform Sync
- Client records and batch reports for practitioners
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| What makes it different | - Full-volume alerts that interrupt even when phone is silenced
- No SDK, API key or card required to start
- Free forever with every feature for every team member
- Escalates to phone calls for critical alerts that go unanswered
- Works with existing AI agents, workflows and monitoring tools
| - Free chart casting to verify quality before purchasing reports
- Multiple divination and astrology systems in one platform
- AI-powered interpretation and follow-up Q&A for readings
- Developer API for server-to-server tool access
- Commercial rights and professional workflows for practitioners
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 73 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 1 | 0 |
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| Citation Flow (Majestic) | 1 | 11 |
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| Referring domains (Majestic) | 0 | 4 |
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5 details filled in for both companies.
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