Träwelldroid is a free check-in service for recording your public transport journeys. An account with Träwelling is required to use this app. With this app you can: Check into your journeys in public transport and public transport throughout Germany and in some European countries Share your check-ins on Twitter and Mastodon Check in to Träwelling community events View statistics related to your rides View trips made by your friends and check in together with them This app is a community project and has no official connection to Träwelling itself.