Quackrep [portable] (2026)

NumberOTP is widely considered the strongest Quackr alternative, particularly for users who need private numbers that actually work on strict platforms like Google, WhatsApp, and Telegram. NumberOTP supports over 150 countries compared to Quackr‘s primarily US/UK focus, offers a full REST API (which Quackr lacks), and provides $0.10 in free credits without requiring a credit card. Every number is SIM-backed and guaranteed non-VoIP, with auto-refund if no SMS arrives. Pricing starts at $0.05 per number.

Standard insurance billing or transparent, itemized medical pricing. quackrep

: Reading the "grading" report to understand how to optimize the solution. Pricing starts at $0

– The QuackRep provider uses:

The free tier provides access to shared numbers from a limited set of countries (primarily the US and UK). These numbers work for many basic signups but are frequently blocked by stricter platforms like Google, WhatsApp, or Telegram, which have systems to detect and reject VoIP-based numbers. – The QuackRep provider uses: The free tier