AtAt vs HighlightGPT

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

AtAt compared with HighlightGPT
Detail	AtAt	HighlightGPT
What it does	Your agent, in any app.	A browser extension that lets you ask, explain, translate, and memorize from highlights using ChatGPT's native responses
Stage	Growing	Not given
Founded	Not given	Not given
Based in	US	Not given
Pricing model	Freemium	Not given
Pricing	7-day free trial, then choose monthly subscription, yearly subscription at $59 (billed yearly), or lifetime license at $169 (one-time payment). Early bird pricing available until October 8.	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.
Key features	TabTab autocomplete suggests next words inline in text fields Screen context attachment when working with supported providers Selection actions to rewrite, explain, search, or ask about selected text Clipboard history searchable and pasteable via ⌘⇧V Native screenshot and screen recording tools Works with multiple AI agents including Claude Code and Codex Support for local models via Ollama and Siri AI Works in Finder to set working directory and include selected files Optional iCloud Sync for history and settings	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
What makes it different	Native macOS app with no Electron, seamlessly integrated into text fields Bring your own AI agent instead of being locked into one provider All data stays on your Mac by default with optional iCloud Sync TabTab suggests completions inline within the text field in the app's own font Works in all editable text fields and terminals without requiring app-specific integration	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
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)	12 +4 (up) since last check	32 −1 (down) since last check
Trust Flow (Majestic)	22	8
Citation Flow (Majestic)	23	19
Referring domains (Majestic)	60	32

4 details filled in for both companies.

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