Hey Product Hunt! 👋 I'm the solo developer behind PingPaid, and I built this because I was terrible at asking clients for money. The problem Last year I had $16K in outstanding invoices. Not because clients were bad people — they were busy, disorganized, or their own payments were delayed. But I was equally bad at following up. I'd draft an email, hesitate for 20 minutes, rewrite it to sound "less pushy," then… sometimes never send it. I'd tell myself: "They'll pay when they can." They often didn't. And every time I finally sent that "hey, just checking in" email, I felt like I was damaging the relationship. Sound familiar? What I built I started with a simple idea: what if a system sent the follow-ups for me, escalating from friendly to firm, so I never had to be the bad guy? That became PingPaid — an automated 8-stage email sequence that chases payments so you don't have to. How it evolved Stage 1 was just "send a reminder email." But I realized timing matters — sending on weekends feels aggressive, so I built compliance windows (weekdays, 9am–8pm only). Stage 3 added tracking — I wanted to know if clients were ignoring me or just busy. Real-time open/click tracking + bot detection (so Google Image Proxy doesn't fool you). Stage 5 got AI — when clients reply, Groq classifies their intent ("I'll pay Friday" vs "I'm disputing this") and auto-pauses the sequence. Stage 8 added SMS/WhatsApp and Stripe payment links — because sometimes email isn't enough. The results so far Beta users are recovering 15–20% more revenue on average. One agency owner told me PingPaid collected a $4,200 invoice that had been sitting for 90 days. The client paid 4 hours after Stage 4 sent. Free during beta I'm keeping it completely free while I gather feedback and iterate. Lock in your account now — no credit card required. What I need from you I'm a solo builder, so honest feedback is oxygen. What sucks? What's confusing? What would make this a no-brainer for your invoices? Drop your thoughts below — I read and reply to every single comment. And if you're a freelancer or agency owner dealing with late payments, try it free → pingpaid.online Thanks for checking it out! 🙏

PingPaid

Stop chasing unpaid invoices. Automate the awkward follow-up

Stop chasing unpaid invoices. Automate the awkward follow-up