DogiDuty app - DogiDuty offers an optional specially tailored approach to sending e-mail reports after each walk, or dog sitting session. However, I don't use this. I've found it good for keeping dog walking client/dog info in one place. Easy to contact owners if anything comes up. It could do with having a section for addresses and vets though. And a booked walks diary would be great. But still good for the basics.
Fitbit for dogs? "Whistle" is more than an activity tracker. It is the perfect companion for your daily adventures with your dog. The device and connected app keep you close to your best friend by helping you create healthy habits, track progress, and stay in touch when you have to be apart.