As an experience e-com founder with almost a 1M in sales. I can say Don't use this app! The last 4 years we have worked hard to creating a long list of subscribers, optimizing our flows and collection data. But out of the blue Klaviyo disabled our account without sending us any message. When we asked why they close our account they told us that one of our campaigns had a high bounce rate. When we asked to open our account and we will reduce the bounce rate. They told us it is closed permanantly. Now all our flows, data and subscriber lists are gone. Please note that if you use this app they will disable your account fast even if you are a loyal customer for 4 years. DON'T USE THIS APP. Mailchimp or Omnisend are must better service!