This is a free website with bus timetables and live departures for the East Of England, built from the Department for Transport’s official Bus Open Data.
There’s a page for Long Buckby showing every bus that serves Long Buckby (9 routes), where each one goes, the stops, and live departures, always up to date as timetables change:
https://stoptostop.co.uk/buses/long-buckby
It’s completely free, with no adverts and no sign-up. I’d be glad of any feedback from residents too.
There’s a free StopToStop app too, with the same times, saved stops and alerts:
iPhone and iPad: https://apps.apple.com/gb/app/stoptostop/id6817501871
Android: https://play.google.com/store/apps/details?id=uk.co.stoptostop.app