I built a PIN-based employee time clock for small businesses after getting frustrated with everything else out there

Hey r/SideProject — wanted to share something I've been building for the past several months.

TapIn HQ — a PIN-based employee time clock for small businesses.

The problem I kept running into:
Small business owners have two bad options for time tracking. Paper timecards that are error-prone and a pain to process. Or expensive, bloated workforce management software built for enterprise companies with IT departments.

Nothing practical in the middle for a 10-25 person shop that just needs accurate time and job tracking.

What I built:
A clean kiosk that runs on any tablet — including old iPads and cheap Android tablets from eBay. Employees tap their name and enter a 4-digit PIN to clock in. Under 10 seconds. No app to download, no smartphone required.

Managers get a real-time dashboard, payroll reports, and CSV exports for whatever payroll software they already use.

I built job and task tracking specifically for manufacturing and machine shops — so you can see exactly how many labor hours went into each job, broken down by task.

Tech stack:
Next.js 14 App Router, Supabase, Stripe, Vercel, PostHog, Resend, Tailwind CSS

Where it stands:
Live and accepting signups. 60-day free trial, no credit card required.

Launching on Product Hunt next Tuesday if anyone wants to show some support 🙏

👉 tapinhq.com

Happy to answer any questions about the build, the tech stack, or the time tracking world. Would genuinely love feedback from anyone who's dealt with this firsthand.