 But in the meantime, cell phone service with Pure Talk, half the cost of Verizon, AT&T, or T-Mobile, just $20 a month for unlimited talk, text, plenty of data. If you're thinking, what's the catch? No way Pure Talk can offer cell phone service that cheap. Well, you can ask the thousands of fellow listeners who've already switched, including my own 16-year-old son that I text with pretty much every day during the course of this program, particularly online.