360dialog

the value winner at scale — a flat fee per number and nothing added per message, which at high volume beats every percentage-based competitor outright.

360dialog charges €49 per number per month and adds nothing to meta's per-message rate. that pricing shape is the entire product thesis, and it inverts the usual comparison: at low volume it looks expensive against a $0.001-per-message rival, and at a few hundred thousand messages a month it is dramatically cheaper.

it is also one of the very few providers that publishes throughput figures rather than hiding them — standard 80 messages per second, or up to 1,000 on the high-throughput tier. support slas are stated too: under four hours to first response on the regular plan, under thirty minutes on premium.