What is the best alternative to TrustedHousesitters on iPhone?

Rover - Pet Sitters, S tier, #1 in pet sitting.

Is there a free alternative to TrustedHousesitters?

Yes: Rover - Pet Sitters (S tier, #1) is free, with no in-app purchases.

Yes. 1 app ranks above it in pet sitting: Rover - Pet Sitters (#1).

TrustedHousesitters is S tier, #2 of the 6 tiered apps in pet sitting. Here is everything that competes with it on iPhone, in tier order.

1
Rover - Pet SittersS
Free download · ★ 4.9 · 603,488 ratings · score 96
Finds local pet sitters and dog walkers for dogs and cats, with booking, secure payments and updates during stays.
3
Wag! - Dog Walkers & SittersA
Free download · ★ 4.8 · 67,686 ratings · score 82
App for booking dog walking, dog sitting, and dog boarding with local caregivers who are listed as screened.
4
Meowtel: In-Home Cat SittingB
Free download · ★ 4.9 · 4,682 ratings · score 79
Connects cat parents with background-checked sitters for in-home cat care, from drop-in visits to overnight stays.
5
Sittsy - Pet Sitter & WalkersC
Free + IAP · ★ 4.7 · 15,615 ratings · score 69
Sittsy connects pet owners with verified pet sitters, dog walkers, and house sitters nearby, with booking done in the.
6
Westchase SittersD
Free download · ★ 5.0 · 2 ratings · score 59
Business app from Westchase Sitters to find and manage child and pet care sitters in one place.

What is the best alternative to TrustedHousesitters on iPhone?: Rover - Pet Sitters, S tier, #1 in pet sitting.
Is there a free alternative to TrustedHousesitters?: Yes: Rover - Pet Sitters (S tier, #1) is free, with no in-app purchases.
Does anything rank above TrustedHousesitters?: Yes. 1 app ranks above it in pet sitting: Rover - Pet Sitters (#1).