I have been exercising for years, using an excel-based diary to see how far I have been going.
I've bicycled a distance from my hometown in Norway to Moscow, via Kiev and Chisinau through Europe, across Crete, then from Metulla in Israel around the Sinai Peninsula, all the way through Africa to Cape Town, then New Zealand at length and now someways into Australia.
I think it would be nice to have an app which can be personalized with email, where I set a starting point, ex. Oslo, Norway and then I add this information
Glucose level before exercise
Glucose level after exercise
Median pulse (bpm)
Time spent exercising in minutes or hours/minutes
Which activity done in exercise
How many Calories spent
At the end of the week/month/year an email is sent to ones own address with a total
Glucose level median (for diabetics)
An added bonus could be that the app calculates from point X to Y (continuously updated) that you have bicycled or walked from X (i.e. Oslo, New York, etc.) to Y (Bergen, Los Angeles, etc.) and when you reached your goal you will have an email with congratulations (this info could be gleaned from Google Earth or similar).
Please contact me if you think this is doable. Let's talk business.