I have been using Streets and Trips for 5 years to plan multi-stop motorcycle trips. For the last two years I have been looking for an app to take its place for my iPhone and iPad. After spending more than $60 and trying out several apps, I have finally found one. Check into InRoute.
I have created over 50 multi stop trips. One point it took me six hours to duplicate 40 of them that I had in Streets and Trips.
Not only that you can use it with Apple, Google, Waze, and Navigon for navigation. You can also download the GPX. You can also share the file through email or messaging.
For $3.99 it is deathly worth it.