@afurley
On iPad using browser instead of the app to get Route planner was a demand
https://community.windy.com/topic/9013/windy-launches-route-planner/160?_=1593593805371
It does not mean that it is feasible and already planned. The answer was ‘ I think we can give a tablet try ‘.
Unfortunately this still has not been developed and it is not possible to get the Route planner on iPad even through the browser. Hope it will change.