Catchy is private by design. There’s no need to log in to store your favourite stops, and there is no tracking of what you personally do in the app. No third-party trackers or cookies are in place at all, and none of your personal information is stored.
Catchy is hosted on Vercel. They have provided details about what data they collect about you (the “end-user”). If you are concerned about what they do with your identifying data, you should probably read it.
Catchy’s maps are provided by Mapbox. They have a clear overview of what they do with the anonymised usage data they collect.
If you have any questions or concerns about Catchy’s use of your data, contact email@example.com