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Paperboy vs Calligra Signature

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

Paperboy compared with Calligra Signature
DetailPaperboy logo PaperboyCalligra Signature logo Calligra Signature
What it doesSEO articles researched, written, fact-checked and published to your website on autopilot AI signature designer with 30+ celebrity styles personalized to your name
StageNot given Not given
FoundedNot given Not given
Based inUS Not given
Pricing modelFreemium Free
PricingCloud plans billed per site: Starter $49/month (3 articles a week), Growth $99/month (1 article a day), Pro $179/month (2 articles a day). Yearly billing available at two months free: Starter $490/year, Growth $990/year, Pro $1,790/year. Additional sites get 20% discount. Agents and API: $20 for 100 Not given
Key features
  • Fact-checking: every number and citation verified against saved source text
  • AI article writing using Claude Sonnet and Haiku models
  • Topic suggestions from Search Console data and market research
  • Multiple publishing options: hosted blog, WordPress, Ghost, webhook, site builder
  • Weekly performance reports via email
  • Approve-first mode for manual review before publishing
  • CLI, REST API, and MCP server interfaces
  • Open source self-hosting under AGPL-3.0
  • Over 30 celebrity-inspired signature styles
  • Signature analysis on five dimensions
  • AI-generated personalized signatures
  • Step-by-step animated learning tutorials
  • Practice tool with scoring
  • Signature style quiz
  • Support for 21 languages
  • Before-and-after signature comparison
What makes it different
  • Every claim fact-checked against saved source text before publishing, stopping articles that fail until fixed or manually reviewed
  • Completely free first article with full fact-check, no card required
  • Open source loop under AGPL-3.0 available for free self-hosting
  • 20% discount on additional sites for agencies and multiple properties
  • Hand-writable signatures, not just digital fonts
  • Designs created in minutes instead of days
  • Step-by-step teaching breaks signatures into maximum 8 steps
Community votes00
DR (Domain Rating by Ahrefs)4 no change since last check1 no change since last check
Trust Flow (Majestic)01
Citation Flow (Majestic)1612
Referring domains (Majestic)41

4 details filled in for both companies.

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