WACheck - WhatsApp Phone Checker - Verify WhatsApp phone numbers instantly

I built WhatsApp Checker because we kept running into the same problem: wasting time and money messaging numbers that weren’t even active on WhatsApp. Most tools available are either clunky, expensive, or designed only for enterprise use. I wanted something simple, fast, and accessible for solo founders, agencies, and small businesses who rely on WhatsApp to reach customers. ✨ What’s new/unique: Instant number validation - no guesswork, check if a number is on WhatsApp. Privacy-focused - we don’t store your lists; everything is secure. Built for scale - works whether you’re checking 1 number or 10,000. What I am most proud of is that this is a lightweight SaaS that solves one very specific pain point, and it’s already saving early users time and ad spend. I’d love your feedback, ideas for integrations (Zapier, n8n, CRMs), and thoughts on how you’d use it in your workflow. 🚀