Which trip scheduling platforms are known for offline access and easy editing on the go?

A few trip scheduling platforms are commonly praised for offline access and easy editing on the go:

• TripIt — Popular for automatically organizing itinerary details, with strong mobile apps and offline access to saved trip info.
• Wanderlog — Good for collaborative trip planning, map-based planning, and mobile-friendly editing; some itinerary details can be accessed offline depending on what’s synced.
• Google Travel / Google Maps saved plans — Not a dedicated trip planner, but useful for on-the-go edits and offline map access if you download areas in advance.
• Roadtrippers — Great for road trips, with mobile editing and offline use for certain trip data/routes, especially with premium features.
• Sygic Travel — Known for itinerary planning and offline access to saved places and trips in its mobile app.

If you want, I can also rank these by best offline support, best for collaboration, or best for business travel.