Klaviyo: Email Marketing & SMS

The interface and features are really impressive, so too the pricing promoted with the app-store. Once you are using it and your member numbers get over a few thousand, the costs skyrocket. Then if you uninstall it, beware. The pop-up windows for my newsletter sign-up remain. Shopify could not assist and referred me to Klayvio. This problem is still yet to be resolved and creating a horrible user experience. I think if someone uninstalls it should be a clear and clean removal and not this level of entanglement and impact on users. I regret signing up in the first place.