Tamkar automates awkward invoice reminder emails
Tamkar is a small app for people who have finished work but still need to chase payment. It sends invoice reminder emails so the business owner does not have to keep writing uncomfortable . The product lets users add their own payment link, so it claims to charge 0% .
The allows 5 to 10 per day, and the pro plan has a two-week trial with no credit card required. Setup and sending an invoice are presented as something that can be done in under a minute. The build uses React, Vite, Express, Supabase, Resend, and Postgres.
The harder problem was not scheduling automatic reminders, but writing emails that sound polite and firm without sounding passive-aggressive or desperate.
Key points
- Tamkar sends invoice reminder emails for unpaid work.
- Users can add their own payment link, so the product claims 0% .
- The supports 5 to 10 per day.
- The pro plan has a two-week trial without requiring a credit card.
- The main lesson is that reminder wording can be harder than the itself.