PromptShield vs Code Guardian

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 Code Guardian
Detail	PromptShield	Code Guardian
What it does	Stop rewriting prompts. Get better AI answers.	AI skill package for code quality, security and architecture checks integrated into Claude Code and OpenAI Codex
Stage	Not given	Established
Founded	Not given	2007
Based in	Not given	DE
Pricing model	Freemium	Paid
Pricing	Free: 3 successful optimizations per day, full optimizer quality, no credit card required. Pro: $7.99/month for unlimited successful prompt optimizations.	Company licence 142.80 € one-off (incl. 19% VAT, equals 120.00 € net), first 30 days of updates included. Optional subscription: 29.75 € per month incl. VAT (25.00 € net), cancellable monthly. With purchase: 22.31 € per month incl. VAT for 6 months (−25%), then 29.75 € per month.
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	Seven quality gates enforcing approvals, migrations, dependencies, data verdicts, defect claims, option questions and legal text checks Four command latches that block destructive operations before execution 22 detectors built from real incidents Five review modes and 15 hooks for different task sizes Council of five advisers with root-cause analysis and retrospectives Autopilot mode for unattended runs Works on macOS, Linux and Windows with Python 3.9 or newer Two separate editions for Claude Code and OpenAI Codex 27 skills and 14 review agents included
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	Proven improvement: average 5.7 points with Code Guardian vs 5.0 without across benchmark tests Built from 120+ real software projects and 20+ years of development experience Deterministic safety checks that block dangerous commands before execution, not after in reports Buy once, use permanently with optional updates subscription
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	54 no change since last check
Trust Flow (Majestic)	9	18
Citation Flow (Majestic)	19	20
Referring domains (Majestic)	9	196

5 details filled in for both companies.

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