Why does pon suggest I buy something again?

From your purchase history, pon estimates when you usually need something again and speaks up in good time beforehand — so you also think of things that tend to get forgotten. This prediction is made entirely on your device; we don't analyze your purchases.

When you act on a card (add or adjust the quantity), pon remembers that and gets more accurate — so it's worth using them actively. If a suggestion doesn't fit, just swipe the card away; after swiping it away a few times, that particular suggestion pauses on its own.