I have successfully used WW in the past, and I'm about to start it again.

It would be extremely helpful to me to be able to track my points/ foods on my Blackberry.

I saw that if I join WW online for $18 per month, they have something that works with Blackberry. Unfortunately, this is just not possible in my budget right now.

Other than the WW site, are there any cheaper/ free apps that you'd recommend for Blackberry?

Fatsecret has a pretty cool app for BB. It counts calories and tracks all your food online and on your BB. I have that and use the WW ones to. They do very similiar things but of course Fatsecret doesn't have a points counter. HTH