There’s no single best customer engagement platform for every brand, any more than there’s one best pair of shoes. The right one depends on your business, the channels your customers use, the size of your team and the systems you already run. Popular choices include HubSpot, which connects marketing, sales and your CRM, and Klaviyo, a favorite of ecommerce brands that live on email and text messages. Braze suits big, mobile-first consumer brands. Salesforce Marketing Cloud fits larger companies already on Salesforce, and Intercom is built around in-app chat and customer support. Before you choose, compare channels, integrations, automation, ease of use, reporting, support and total cost. Also check how each one reaches customers who don’t have your app. Mobile wallet passes are one way to do that, with notifications that show up on the lock screen.