SendPulse

SendPulse bundles email, SMS, web push notifications, and in-app messaging into one platform, so you can reach users across channels without juggling separate tools. The free tier gives you 15,000 emails per month plus up to 1,000 SMS, enough for smaller campaigns. Visual automation builder lets you create behavioral triggers based on subscriber actions, like abandoned cart reminders or welcome sequences.

This works best for ecommerce stores and content-driven businesses that want to test multi-channel messaging without enterprise pricing. The platform's strength is its cross-channel approach, though users report the interface is dense with options and has a steeper learning curve than single-channel alternatives.