PromptShield vs KOPY

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 KOPY
Detail	PromptShield	KOPY
What it does	Stop rewriting prompts. Get better AI answers.	AI keyboard for iPhone that generates perfect replies in seconds
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	US
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.	KOPY Pro: $10.00/month billed annually (all 4 modes, all 10 reply tones, 1,000 replies per month, personalization profiles, custom modes and tones). Own Key: $12.99 one-time purchase (all 4 modes, all 10 reply tones, use your own OpenAI key, no monthly fees).
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	Four reply modes: Social, Work, Dating, and Insight 10 reply tones including Agree, Disagree, Funny, Insight, Neutral, Rizz, Spicy, Question, Continue, and Professional Works in any iOS app with a text field including WhatsApp, iMessage, Tinder, Gmail, Slack, and more Privacy-first with no message storage Personalization profiles Custom modes and tones 1,000 replies per month with KOPY Pro Bring Your Own Key option to use personal OpenAI API key
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	Native iOS keyboard that works in every app without switching or copy-pasting Replies that sound natural and match the user's voice, not robotic Context-aware replies that adapt to conversation, platform, and relationship Privacy by default with no message logging or storage Option to use your own OpenAI API key to avoid monthly subscription fees
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	10 no change since last check
Trust Flow (Majestic)	9	6
Citation Flow (Majestic)	19	21
Referring domains (Majestic)	9	26

5 details filled in for both companies.

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