Transito

Transito is a FOSS data-provider-agnostic public transportation app that let's you route between locations using openly available public GTFS feeds. The app lets you check departure times for stops & perform routing calculations offline / right on your phone (e.g. no network calls once data is initially fetched). See details at the project respository here and the app userguide here. Features:

• Provides GTFS feed search & download in-app - over 1,500 GTFS feeds to choose from (see catalog here)
• Performs GTFS routing calculations on-device & offline (no network calls after GTFS data downloaded & initially cached)
• Provides routing results in both step & map view formats
• Browse stops from GTFS feeds data, see departure, and select stops to route to/from (offline)
• Allows searching for POIs via Nominatim (requires network connection)
• Allows switching between using different individual GTFS feeds or using multiple feeds in combination
• Simple configuration system & algorithm tunables
• Supports saving commonly used locations as favorites
• Built in Go with a simple codebase. App built in Gio, and utilizes the Mobroute GTFS routing library.