Summarize this buying guide. Preserve named providers, plan terms, source dates and billing units. Separate documented scope from the author's judgment. Do not invent prices, product features or outcomes. Pick Privy if you want pop-ups, email and some texting in one plan. Its Email + SMS plan starts at $30 a month for up to 1,500 mailable contacts, with unlimited email sends and 250 SMS credits included ( Privy pricing ). Pick Klaviyo if you want a broader CRM. Its Email plan starts at $20 a month for 500 active profiles and 5,000 emails, and its Marketing plan, at a regular $25, adds social marketing, reviews without an order limit and Customer Hub, with texting bought as a monthly mobile messaging budget ( Klaviyo pricing ). Klaviyo also sells Customer Agent and Helpdesk, with starting quotas on its plans. The two entry prices cover different audience sizes and send allowances, so price both at your own contact count. For a store that wants personal recovery handled from the first message onward, Zobi is another workflow to evaluate : shopper-specific messages, approval before sending, and one continuing thread for replies, support and reorders. Privy, Pricing https://www.privy.com/pricing Privy Help, 2025 Billing, Payments, and Refunds https://help.privy.com/docs/learn/account-settings-and-billing/account-settings/2025-plans-and-billing Privy, Privy for Shopify https://www.privy.com/shopify Klaviyo, Pricing https://www.klaviyo.com/pricing Klaviyo Help, Understand Klaviyo's mobile messaging system https://help.klaviyo.com/hc/en-us/articles/13502982552347 Klaviyo Help, Getting started with Customer Agent https://help.klaviyo.com/hc/en-us/articles/37659268052635 Klaviyo Help, Guide to using Customer Agent on SMS https://help.klaviyo.com/hc/en-us/articles/47313754407323 Zobi, Zobi for DTC brands https://zobi.com/dtc/