Thinking of joining Walmart Plus? Now's the time to do it. As part of its ongoing Black Friday deals, Walmart is taking 50% off Walmart Plus memberships. This rare sale usually comes once and year ...

Walmart also offers discounted rates of $6.47 per month or $49 per year to students and those who qualify for government assistance through SNAP, WIC, Medicaid, SSI, TANF, TTANF, NSLP and LIHEAP.

In the No. 2 spot is Walmart with 6.4% of the market. Its Prime rival, Walmart+ , launched in 2020 after the expensive failure of its $3 billion investment in Jet.com.