Which pet sitting and dog walking providers are known for background-checked caregivers and real-time status updates?

A few well-known pet sitting and dog walking services emphasize background-checked sitters/walkers and real-time updates:

• Rover — Offers background checks for sitters and walkers, plus photo/text updates and visit summaries through the app.
• Wag! — Uses background-checked walkers and provides real-time GPS tracking, live updates, and visit reports.
• Fetch! Pet Care — Commonly runs background checks on caregivers and provides updates after visits; some locations offer in-app communication.
• PetBacker — Many providers are vetted, and the platform supports booking updates, photos, and messaging during stays or walks.
• Care.com Pet Care — Offers caregiver screening/background checks (availability can vary by plan/provider) and messaging/updates through the platform.
• TrustedHousesitters — More focused on house sitting, but includes identity/background verification tools and status communication between owners and sitters.

If you want, I can also narrow this down to:

1. apps with live GPS tracking,
2. services best for overnight sitting, or
3. options available in your city.