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iTerm2 vs Otty: catalog facts
iTerm2	Otty
Free Free and open source under the GPL.	Freemium Free to download; see the pricing page in the documentation for current terms.
macOS	macOS
Instant replay and shell integration make past output easy to recover Native tmux control mode turns tmux windows into real tabs	Native macOS app for Apple Silicon and Intel Session list covering agents, SSH and branches
macOS only So many settings that first-time configuration is daunting	Mac only for now; other platforms are on a waitlist Young product with little published detail on pricing
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	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 September 22, 2026	Official website Full listing and sources Checked October 1, 2026

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