I have built a web site that works nicely on phones that I use to track my injections which I’ve decided to share it for free.
You can take a photo of the area(s) you inject in and add ‘landmarks’ (blemishes etc.) to help you quickly locate places you haven’t injected recently (shows history!)
It’s easy & simple to use, I think it really helps me - please share? www.injectiontracker.co.uk