Best app for adding a low stock label to collection pages?

[Stacllen]

Hi!  Im looking for a simple app that will automatically add a label/badge to a collection page on products that have under 100 left in stock.  TIA!

[MakeProSimp]

Here are some options for adding a low-stock label to collection pages (you can check it by installing them):

1) BSS: Product Labels & Badges
2) Easy:Stock ‑ Product Labels
3) Flair Product Badges & Labels