Do you remember all the routes that go through your city? Even if the answer to this question is "yes," there may always be changes that you will not know. CityBus has a route search function - you only need to select two points (or start typing an address and choose from the suggested prompts). The application will show all routes with stops near selected locations (if there are less than two direct routes, variants with a transfer will also be offered).
Search results can be applied immediately to monitor the transport, choosing the most convenient of the proposed routes.