International calling apps

Suparelay

Some calls only work on a phone number: your bank abroad, an airline, an embassy, a landlord. Suparelay makes that call from a browser tab. Type the number, see the price for that exact number, press call — and their ordinary phone rings, with no app, no account and no internet needed on their side. Prepaid credit from $5, from about 2 cents a minute, charged per started minute, and nothing at all if they do not answer. No subscription. The credit never expires.