Headwind out, tailwind back
You already have the routes. Routesmith scores every one of them from its own GPS track (the roads, the climbing, the stops), then reads the forecast for the day you're riding and tells you which one fits.
It isn't a route-discovery app. Nothing here suggests somebody else's ride, and no route is ever published, shared or sold. Routesmith works from the library you and your riding groups have already built. The question it answers is which of these, today.
Every route is broken into sections, and each section is checked against the forecast where you would actually be when you're there, not one number for the whole ride. Pick a day and a start time and the whole library re-sorts:
Forecasts reach about a fortnight out, with a lower-confidence note beyond a week. Your rolling speed and your usual roll-out time for each weekday set the ride window, so the numbers describe your ride rather than a generic one.
The rest of the scoring comes from offline map data (road classes, woodland, a bare-earth terrain model), computed once per route, not guessed at.
The Routes tab is the whole library with the day's scores on it. Filter chips for the kinds of ride you do, a search that reaches café stops as well as route names, and every metric sortable, each with a min/max box to narrow the list to the quiet end of the roads, or the flat end of the climbing.
Change the day or the start time and everything re-sorts against that forecast, so the top of the list is always an answer to a real question: what should I ride, on this day, starting then.
Bring in the routes you've already saved, and a shared club library where your club has one. Your personal routes are synced to your device and scored on it. They are never stored on the server, which only ever passes them through. After that, the only thing that leaves your device without being asked is a coarse outline of each route, rounded to about 20 km, sent for the forecast. The map data that completes the scoring downloads once for where your routes ride.
The same course usually exists more than once: your copy and the club's, or a ride you saved twice. Those fold onto one card, keeping every copy's title and link.
Where you sign in with Strava, it checks your club memberships and nothing else. The connection is read-only: Routesmith reads your own routes and club memberships, shows them only to you, and never posts to your account. There is one cookie, to keep you signed in, and no advertising, analytics or third-party tracking anywhere in the app.
The privacy notice is public and spells out exactly what is held, for how long, and how to have it deleted. Worth reading before you connect anything, not after.
Every weather score is a best-effort reading of a forecast, and a forecast is a prediction, not a measurement. It can shift after you've picked a ride, and no score can see a flooded lane, a closed road or a shower that wasn't due. Treat the numbers as help choosing, never as an assurance about conditions: check the day before you roll out, and ride to what's actually in front of you. The decision to ride, the route you pick and how you ride it are always yours. You ride at your own risk. The terms of use say this formally.