Reliable sale / price drop alert platform?

[Lagirl20]

Can anyone recommend a reliable sale / price alert drop platform? I’ve used a few in the past that didn’t work consistently, thanks!

I’ve got Fetchie which worked on the items I added but think you can only add three on the free version.

Lyst is currently pursuing me with updates on the prices of some coats - but the prices only ever drop from terrifying to slightly less terrifying so I’m having to ignore it at the moment.

I have the Radar app - it’s more frustrating than useful; mostly inaccurate and I haven’t bought anything using its info yet - but like Lyst it is sometimes useful in telling me about sources I’m unfamiliar with.