On October 20, TextNow introduced Yello! – its first phone designed specifically for children. The device comes with a service plan that gives the child a dedicated phone number. Calls and messages are available only from contacts approved by the parents. The service plan costs $19.99 per month with no long-term contract, while the phone […] Post Peace of Mind for Parents: Budget Yello! Phone Announced with Calls from Strangers Blocked at Root-Nation.com.