PromptShield vs HeyDeer

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 HeyDeer
Detail	PromptShield	HeyDeer
What it does	Stop rewriting prompts. Get better AI answers.	AI code reviews and fixes for GitHub pull requests
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	SG
Pricing model	Freemium	Freemium
Pricing	Free: 3 successful optimizations per day, full optimizer quality, no credit card required. Pro: $7.99/month for unlimited successful prompt optimizations.	Free: 1,000 credits first month, 300 monthly after; Starter: $9/month with 2,500 monthly credits; Pro: $39/month with 12,000 monthly credits. No seat fees. Add-on credits start at $5 for 500 credits at base rate of $10 per 1,000 credits, with volume discounts. Reviews of public repositories free up
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	Independent review model that checks all pull requests uniformly regardless of authorship Dual model verification to reduce false positives Autopilot for automated fixing and iteration Review walkthrough showing what to read first and what to skim Support for team standards via REVIEW.md and AGENTS.md Configurable feedback scope (Concise, Balanced, Detailed) Standard and Deep review depths for different complexity levels MCP servers for additional review context Works with public and private repositories @heydeer mention for questions and task handoff
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	Finds 78% more issues than GitHub Copilot on the same pull requests No seat fees regardless of team size or number of repositories Independent and uniform review across all code sources and models Automated fixing with Autopilot until PR is ready to merge Free reviews for open source projects up to fair-use limit
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	Not checked yet no change since last check
Trust Flow (Majestic)	9	1
Citation Flow (Majestic)	19	31
Referring domains (Majestic)	9	13

5 details filled in for both companies.

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