The new plan will be available starting Sept 9, and goes head to head with Google's Project Fi, which also offers an unlimited talk/text plan with 1GB. But Google's service actually has a lot more features that make it even more valuable for the price, such as prioritizing WiFi connections to reduce data consumption and free data coverage in more than 120 countries.

The tech giant will also pay you back for unused bytes out of your monthly allowance so you only pay for what you use. For penny pinchers, this could mean plenty of savings. Those who prize network performance may also prefer Fi, which rides on T-Mobile, Sprint and US Cellular signals, while Cricket taps on AT&T's network.

Cricket's option, however, is available on far more phones that Fi is. While Google limits you to three Nexus phones for now, Cricket offers about two dozen handsets. Those who don't want to be tied to a Nexus but still want to save money may really enjoy Cricket's new plan.