HighlightGPT vs LLMnesia

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

HighlightGPT compared with LLMnesia
Detail	HighlightGPT	LLMnesia
What it does	A browser extension that lets you ask, explain, translate, and memorize from highlights using ChatGPT's native responses	Search your AI chat history across ChatGPT, Claude, Gemini and more, locally and privately
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	Not given
Pricing model	Not given	Freemium
Pricing	Free: $0/Lifetime includes highlight toolbar inside ChatGPT, ask/explain/translate, view answers in side panel, manually save to ChatGPT memory. Pro: $8/Lifetime adds remove ads, unlimited saving to ChatGPT memory, priority support, early access to new features.	Free: local search, history import, auto-capture, MCP connection. Vault: £8/month or £88/year (billed annually with one month free, equivalent to £7.33/month). Plus tax.
Key features	Highlight toolbar inside ChatGPT Ask questions directly from highlighted text without retyping Translate ChatGPT replies while preserving tone and nuance Save important answers to ChatGPT memory Context-aware replies in side panel Zero extra tokens usage	Search across 15 AI platforms with semantic search Auto-capture new conversations automatically in background Save individual lines as reusable memories Star conversations for easy retrieval Filter results by AI platform or date Local MCP connection for Claude Desktop and Cursor Export conversations in portable format End-to-end encrypted sync across devices with Vault Vault web app beta for searching on phone and desktop
What makes it different	Zero extra tokens - no additional token usage while using ChatGPT's native responses Side panel design keeps you reading ChatGPT uninterrupted Privacy-first with answers generated only by ChatGPT	Completely local-first: free search index stays in your browser, nothing sent to servers No account required for core features Spans all your AI tools in one searchable interface Retrieves conversations even after they're deleted from original platforms Lightweight design with minimal browser performance impact
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)	32 −1 (down) since last check	19 no change since last check
Trust Flow (Majestic)	8	3
Citation Flow (Majestic)	19	26
Referring domains (Majestic)	32	43

4 details filled in for both companies.

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