If you’re looking for the most inexpensive plan Circles.Life has a $0/month Flexi Plan that offers 1GB of data, 30min talk time, and 10 SMS. The only thing to be wary of is if you go beyond the data limit, you’ll need to top up your data plan (minimum $6 for an additional 1GB of data) and that can rack up fast if you’re doing a lot of browsing!