You guys might already know this and if so I'm sorry for random spam
On the drop down menu for airmid there is a page called progress with a little line diagram
If you click on this there is a nice graph with upto a years data displayed quite nicely but if you click on the graph you get offered a list of historical data
Which I thought could be useful
For example my bmi is discussed as being higher than normal (for me) at the GPs regularly but that is based on one reading in 2014 & all recorded readings before and after this are 20% higher.....
I like a nice tool that offers statistical data in multiple formats
Airmid is an app which stores all the gp's information about you in an accessible form - might be England only I'm not sure
(Edited to add an explanation of Airmid)