1pMobile is a UK-based mobile virtual network operator (MVNO) that offers a straightforward, contract-free service with a pay-as-you-go (PAYG) tariff where calls, texts, and data cost just $1$p each. Key features include no credit checks, the ability to keep your number, and various 30-day bundles with unlimited calls and texts. 1pMobile operates on the EE network, providing 4G and 5G coverage.