Free Perth Zoo tickets for families

West Australian families can claim four free Perth Zoo passes this spring as part of a new initiative by the state government.

The tickets, which will save families up to $100, can be claimed via the ServiceWA app.

They must be used between September 9 and November 30, and also include free public transport.

"With many Western Australian households feeling cost of living pressures, we want to make sure families can still get out and about over the school holidays and throughout spring," said premier Roger Cook.