It looks like Eversweet Ultra has been publicly discussed on Reddit at least since March 27, 2026 , with another Reddit thread appearing on May 24, 2026. That suggests it had been available in the Reddit community for at least a couple of months by late June 2026.

Reddit timeline

  • March 27, 2026: a Reddit post titled “Eversweet Ultra question” appears.
  • May 24, 2026: another Reddit post titled “Eversweet Ultra questions” appears.
  • June 2, 2026: the product appears on PETKIT’s product page, which fits the idea that Reddit discussion was happening around launch time.

What that means

Based on the posts I found, the safest answer is that Eversweet Ultra was showing up on Reddit by late March 2026 and was still being discussed through May 2026. If you meant a different “Eversweet Ultra” product, the timeline could change, but for the PETKIT fountain this is the clearest match.

TL;DR

On Reddit, Eversweet Ultra seems to have been around since at least March 2026.