Observed arrival · 2026-09-01
Convert Once, the travel converter that refuses to make you pick a mode
An iPhone currency converter that also interprets the same typed number as temperature, distance, weight, tipping guidance, and local time.
Field notes
The app separates exchange-rate provenance into live, cached, built-in, and user-entered states, with the manually entered counter rate taking priority. Its conversion model also applies a magnitude rule to suppress physically implausible readings, while country data covers tipping customs, service-charge context, and tour-guide etiquette. The page describes on-device location handling, offline operation, temporary price retention, and access through Siri, Spotlight, Shortcuts, widgets, and the Action button.
Observed signals
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Editorial observations of this landing page, not a rating.
One card from the complete issue