£10 a month SIM only plans
These plans are ideal for light mobile users or those who don't want the fuss of a pay as you go phone. While yes these are the cheapest SIM plans on the market, they still include a good number of inclusive calls and texts each month so in theory means you should never incur any other costs.
If you don't think these plans offer enough in the way of freebies, it might be an idea to check out our list of £15 a month plans. For an extra £5 you get alot more per month, which could end up keeping your bills down.