online repeat prescription services

[jkh112]

My doctor's surgery has offered me the option of using an online service to request repeat prescriptions.
They have provided me with account details which I need to use to register on one of the online sites.
The sites on their list are:
Patient Access
Evergreen Life
Dimec

Patient Access seems to be via a website only, Evergreen seems to be via the website or via an app whereas Dimec appears to be app only.
I dont want to register on all 3 just to see which is the best (or worst) so does anyone have any experience good or bad of these?

[jkh112]

Patient Access seems to be popular and I hadn't realised they had an app.
I'll probably give them a try rather than risk it with the others.