This app was mentioned in 2 comments, with an average of 1.50 upvotes
I use AppyParking London in London (obviously) and it's really good. Not dedicated to motorbikes but you can filter what info it gives to just motorcycle bays. The info it gives (if you want some ideas to get started on another app):
Paid Meter Bays
Motorcycle Bays
Petrol Stations
Car Parks
Disabled Bays
Charging Stations
JustPark
Controlled Parking Zones
Congestion/Restricted Zones/Red Routes
It shows restricted times for certain bays, when residents parking is free, single yellow/double yellow etc, bank holiday schedules. Finally it links to street view (which is really useful) and allows you to get directions through gmaps.
So far it's been spot on.
This app may not fit your problem, but worth a try.