Does Flight have a moat?

Easy to copy

• The core mechanic, where flight time sets the session length and a plane flies across a map, already ships in at least eight apps and several free GitHub projects.
• The 3D globe and great-circle routes come almost free from open-source libraries like three.js, globe.gl or Cesium.
• The airport list and flight-duration maths use public data (OpenFlights) and simple distance formulas.
• It's a web app with no account, no history and no data, so users have nothing to lose by switching.

How you'd go after it

• Ship it as a native iOS app with Screen Time app blocking, which this web version can't do and which is the paid feature in FocusFlight and Focus Flight.
• Build an add-on inside Notion or Obsidian, or a Chrome extension, so the timer sits where students and developers already work.
• Add group or co-working flights where friends board the same route. That would give a social hook that solo timers lack.
• Go after study and productivity creators on TikTok. That channel already pushed FocusFlight to millions of downloads.