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PromptShield vs Sirro

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

PromptShield compared with Sirro
DetailPromptShield logo PromptShieldSirro logo Sirro
What it doesStop rewriting prompts. Get better AI answers. Save assets once. Reuse in every project.
StageNot given MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingFree: 3 successful optimizations per day, full optimizer quality, no credit card required. Pro: $7.99/month for unlimited successful prompt optimizations. Free: 10 saved assets, 1 MB storage. Pro: $19/month for 150 saved assets, 10 MB storage. Team: $49/month for up to 4 members, 500 shared assets, 30 MB shared storage.
Key features
  • One-click prompt optimization across 7 AI chats
  • Prompt Library and Optimization History
  • Guard feature for sensitive information detection
  • Local image text OCR checking
  • Coach and Personalization
  • Apply without sending functionality
  • External memory for AI coding agents
  • Team shared libraries across projects
  • MCP server integration with Cursor, Claude Code, Codex, and more
  • Save and retrieve assets by name
  • Collaboration across agents and repositories
  • Versioned searchable asset storage
  • Automatic versioning when you save
  • Organize library with tags
What makes it different
  • Same high-quality optimizer in both free and paid versions
  • No credit card required for free plan
  • Local data storage for library, history, and personalization
  • Works within existing AI chat interfaces without leaving them
  • Transparent about data handling and privacy
  • Reduces token costs by fetching existing assets instead of regenerating them
  • Eliminates copy-paste archaeology with named asset retrieval
  • Lives outside individual projects and repositories for cross-project reuse
  • Works with multiple AI coding tools through single MCP connection
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)Not checked yet no change since last check3 no change since last check
Trust Flow (Majestic)920
Citation Flow (Majestic)1920
Referring domains (Majestic)915

5 details filled in for both companies.

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