Not sure why you'd list Republic Wireless as best plan for under $30. Project Fi should get the nod. I've had both services (had RW for couple yrs and now Fi for over year and half) and Fi is better. My monthly bill for Fi is rarely over $24. that gets me the base $20 plan w 1gb of data (of which part is always refunded to me since i don't use much data.) Maybe RW is slightly cheaper per month, but since your dollar amount given is 'Under $30' then you have to go woth Fi, esp since it has access to an additional set of towers (US Cellular) and also has phone support that calls you back within 2 mins anytime you have a porblem (which is rare). You can also use chat or email for support if you prefer. Additionally, the Fi app is puresimplicity and offers complete transparency of your account, incl data useage and days left, etc. This is also where you can add numbers to block. Fi also has automatic VPN that secures any unknown network that the phone attaches to. Lastly, with additon of Moto x4 and the new Moto G6, there are now excellent budget phones from which to use, which can be purchased using interest free payments over 24 months. It's really a no brainer.