This is my favorite iPhone ride tracking app.
The recent update to version 1.5.2 (finally) added support for the Scosche Rhythm+ Heart Rate monitor, which is the best non-cheststrap HR monitor currently available, far better than inaccurate wrist sensor units. Hopefully version 1.6.0 doesnt break that again!
Note to potential RWGPS subscribers: Skip the $3.99/7 day in-app Basic membership option and instead go to their website to sign up for the $6/month Basic or $10/month Premium memberships (with better savings for annual subscriptions.) If the upgrade-only features are useful to you, those are a much better deal.
UPDATE: The release notes for version 1.6.0 claim there are "more subscription options" for in-app purchases, but after this latest release the only option continues to be the terrible value of Basic at $3.99 for 7 days. Docked one star for claiming this was addressed without actually addressing it. :-(
John_B about Ride with GPS: Bike Navigation, v1.6.0