There are some great mobile apps (and a lot of them are free!) that can be very helpful for their pain relief.

WebMAP Mobileapp
Available on Google Play at http://bit.ly/330R5TV
Apple App Store at https://apple.co/2OneXwW.

Pain Squad  https://apps.apple.com/us/app/pain-squad/id929781246

My Pain Dairy  https://apps.apple.com/us/app/my-pain-diary-chronic-pain/id338627856

Achy Penguin  https://apps.apple.com/us/app/achy-penguin/id919797264

Pain Toolkit https://apps.apple.com/gb/app/pain-toolkit/id962036060

Some Apps can help with movement or relaxation and stress management and sleep:

Super Stretch  https://apps.apple.com/nz/app/super-stretch-yoga/id456113661

Stop Breathe and Think  https://apps.apple.com/us/app/stop-breathe-think/id778848692