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