Hi guys,
May you recommend percentage based price alert app or site for crypto, as a plus stocks, metals, etc?
Pricing per month is around $10, but sometimes up to $20 as far as i see for such kind of apps. I only notice after price rockets or drops too much. I need a simple manner app, so i don't want to use exchanges' complex alerts, etc.
Whatsapp, Slack notifications, etc is fine

Cheers,