Acana does have a cat food. Jaxx was on Acana for a while and he did really well on it.
I saw the price of Ziwipeak and thought wow I could never afford to that since it was $30 for a 2.2 pound bag. Then I found out how little of it you have to feed because it is such a high quality food and we switched Jaxx over.
Just remember when you are switching from a low quality food to a high quality food there will be a difference in what you feed. I can't remember what Jaxx got when I was feeding him Acana but it wasn't a lot. I would use Dog Food Calculator
as a starting point for figuring out the amount of food needed and then adjust by if weight is being lost or gained. The first time my hubby saw how much food Jaxx was getting on high quality food he kept trying to sneak him more because he thought it wasn't enough until I explained about the quality of the food.
Acana is a great kibble and I am sure your chi and your cat will do great on it!