Pricing features

The difference from paid upfront is what the money buys. Upfront buys a plan — a known amount of service for a known price. Prepaid buys a balance, and usage draws it down at whatever rate usage happens. Prepaid credit sits between a fixed plan and a metered bill: usage is charged as it happens, but against a balance paid in advance. That caps the exposure at whatever was deposited, and it moves the failure mode from an unexpected invoice to a service that stops when the balance runs out. Whether it stops or auto-tops-up is the thing to check.

5 providers run on prepaid credit, listed alphabetically. Across 16 countries, commonest entry price $15 to $50 a month. 16 records do not record this field, and cannot appear here either way.