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Altar vs Highlight AI: catalog facts
Altar	Highlight AI
Free Free to download; the homepage does not describe paid plans.	Freemium Free to start, with paid options for heavier use.
Windows, macOS	macOS
Speaker-labelled, timestamped live notes Searchable knowledge base built from meetings, docs and screen	Uses screen and meeting context instead of manual prompts Meeting summaries with transcripts and decisions
No Linux or mobile apps mentioned Little public information on pricing and where data is processed	Needs broad access to your screen and meetings Aimed at office workflows rather than general chat
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.