Tell the Sky vs PostSider
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Tell the Sky compared with PostSider
| Detail | 
Tell the Sky | 
PostSider |
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| What it does | Send a message on a paper lantern and let it drift across the world on the real wind until a stranger catches it and sends it on
| AI workflow social publishing with human review
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
| PL
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Standard $20/month (1 seat, 5 channels, 400 posts/month), Team $35/month (unlimited seats, 10 channels, unlimited posts), Pro $45/month (unlimited seats, 30 channels, CSV import), Ultimate $90/month (unlimited seats, 100 channels, custom OAuth). Annual billing: pay for 10 months, use for 12.
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| Key features | - Send messages on digital lanterns that drift on real wind patterns
- Add messages to lanterns and send them on
- Catch up to three lanterns per day
- Live world map showing lantern journeys
- Sign in with email, Google or Apple
- Customizable notifications and quiet hours
- Report and block users with moderation system
- Set location to receive lanterns
| - Drag-and-drop calendar for scheduling posts across channels
- MCP server for AI agents like Claude and ChatGPT
- REST API and Node.js SDK for developers
- Formal approval workflows for team review before publishing
- AI post checker and caption rewrite per network
- CSV bulk import for planning entire months
- Automated queues with best-time scheduling
- Cross-platform analytics and reporting dashboard
- Support for 30+ social networks and platforms
- AES-256-GCM encryption for channel tokens at rest
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| What makes it different | - Messages drift on real wind patterns across a live world map
- Messages are added by multiple strangers as lanterns travel
- Emphasis on safety and kindness with content moderation
- Location-based delivery of messages to nearby users
| - No AI publishing autonomously - AI drafts, humans decide what goes live
- Works with your existing AI tools - n8n, Claude, Make, or custom code
- Built by one founder - direct support and no enterprise bloat
- Full API and MCP access on all plans, including free trial
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▲ +1 (up) since last check | 16 ▼ −2 (down) since last check |
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| Trust Flow (Majestic) | 0 | 5 |
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| Citation Flow (Majestic) | 0 | 31 |
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| Referring domains (Majestic) | 0 | 78 |
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4 details filled in for both companies.
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