Letterstack
Paul Metcalfe launched Letterstack on Product Hunt in September, 2020. It became the #1 Product of the Day. After three hours, it had 70 upvotes and was in first place. It remained in that spot for the rest of the day.
Six hours into the launch, it had 150 upvotes. At 12 hours, it had 257 upvotes.. At the 16 hour mark, it had 300 upvotes.
Paul wrote more about the launch at 1 Product of the Day – Here’s what happened.