Well one of my clients who's an engineer has created such an app. And he now has a Prerelease version available for a new Toronto based startup company called FitFriend.
And he's looking for volunteers to test it out. For free.
You can get free copies of the app, and you'll get to add your input for what you would want in a fitness app.
Below is the the FitFriend notice, and, below that, are a couple of sample displays when using the app.
You'll get free copies of the app, and you'll get to add your input for what you would want in a fitness app.
Your input and feedback is what matters most; we want to consult with runners like you who can help us shape a quality running app out of this.
Spots are limited and are for a month only. More info and video here (please consider funding if you feel that this is the kind of thing that would be useful):
Contact Mike Post at firstname.lastname@example.org for more info on testing.