Observed arrival · 2026-09-15

Arity: diagrams that argue back

getarity.app Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

Arity is an offline desktop diagram tool with eleven modes, including flow charts, class diagrams, mind maps, and state machines.

Landing page captured for the 2026-09-15 issue.

Field notes

Arity organizes diagramming around eleven modes, from flow charts and ER diagrams to sequence diagrams, geometry, and Freestyle. The page says ten modes impose their own notation and include validation that can identify structurally impossible diagrams. It is presented as an offline desktop application for macOS and Windows, with an installer under 10 MB; the listed licence covers three devices, includes free updates, and costs $29.99 once.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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