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PromptShield vs Skillsync

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 Skillsync
DetailPromptShield logo PromptShield Skillsync
What it doesStop rewriting prompts. Get better AI answers. Search every AI coding session instantly without breaking your flow
StageNot given Not given
FoundedNot given Not given
Based inNot given US
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. Open source (free forever with MCP search, session movement, and open source access); Pro ($20 per seat/month billed monthly or $200 per year with 5-day free trial); Team (custom pricing agreed on a call).
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
  • Search all AI coding sessions in under 1 second
  • Works with Claude Code, Codex, Cursor, OpenCode, Amp, pi, Grok, Antigravity, and Hermes
  • Local-first processing with no indexing setup required
  • Cross-app hotkey search (⌥⇧Space)
  • Continue sessions in any agent
  • Private workspaces for team collaboration
  • Shared skill library with per-agent toggles
  • CLI support for Linux, Windows, and remote servers
  • Plain language search with instant results
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
  • Never repeat the same solution to your agents—instant context from your entire history
  • Zero setup required—works immediately with existing sessions
  • Fully private by default with granular sharing controls
  • Works across all major AI coding agents from one unified search
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 check33 no change since last check
Trust Flow (Majestic)98
Citation Flow (Majestic)1929
Referring domains (Majestic)9148

5 details filled in for both companies.

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