What coupon extensions actually save the most? Honey, Rakuten, Coupert, etc

I’ve been trying to save a bit on online shopping lately, so I started testing different browser coupon extensions. So far I’ve tried Honey and Rakuten, and they work pretty well for cashback and auto-applying codes.

Recently I also came across Coupert while doing a small task where I had to look into money-saving tools, so I figured I’d try it out too. Has anyone here actually used it long-term? Did it find codes more reliably than Honey or Rakuten?

I’m mainly looking for something that works well on Indian sites (Myntra, Ajio, Amazon, etc.). Any recommendations or experiences? Always open to real user tips