Quackr

Quackr provides virtual phone numbers that can receive SMS messages for verification purposes. Users select a country from a list that includes the United States, United Kingdom, Australia, Germany, Brazil, France, India, Russia, Netherlands, Sweden, Poland, Spain, Finland and many others, and the service supplies a temporary number that is activated instantly. The platform updates its free numbers monthly and also offers paid private numbers with various subscription lengths, accepting card, PayPal or crypto payments.

The service is aimed at individuals and developers who need disposable numbers to complete account creation, password resets, or other SMS‑based checks on websites and apps. It works across all platforms, provides 24/7 SMS receipt, and includes an API for bulk or automated usage. Quackr is described as experimental and is used by a large user base, with a public record of over two million users and many five‑star reviews.