Smart links for text messaging

Relay™ brings the power of dynamic, branded links to your text messaging strategy.

Built by Rebrandly and Wonder Cave, Relay helps you create smarter, more effective campaigns that drive engagement, optimize performance, and scale with confidence.

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It's time to rethink text messaging

Text messaging has always been one of the most effective ways to reach people. But for too long, it’s been stuck in the past—clunky, limited, and lacking the sophistication marketers need to create personalized campaigns that truly perform.

Relay changes that.

Relay brings the intelligence of dynamic, branded links and advanced analytics to SMS and MMS messaging.

Created by Wonder Cave and Rebrandly, Relay is built for marketers who want to go beyond clicks and opens—who want to understand their audience, optimize every message, and scale with confidence.

Why Relay?

If you’re using text messaging today, you know how powerful it can be. But it could be more. Relay turns every message into a smarter, more effective connection.

Branded Links

Make your calls-to-action unmistakably yours, driving trust and better engagement.

Personalized URLs

Tailor every message to feel personal, no matter how many people you’re reaching.

Advanced Analytics

Know exactly what works—who’s clicking, when, where, and why—so you can optimize and grow.

And it's all built on enterprise-grade infrastructure, so it works seamlessly and securely at any scale.

Game changing results

When nonprofits used Relay for disaster relief efforts in North Carolina, they saw...

40%

higher click-through rates

30%

increased donations

And it’s not just nonprofits. Leading agencies, retailers, and performance marketers are using Relay to power campaigns that drive results.

Is Relay right for me?

As a Wonder Cave user, you already know how powerful text messaging is. Relay gives you the tools to elevate it—branded links and deeper analytics to turn great campaigns into extraordinary ones. Relay is the missing piece in your marketing tech stack. It’s what text messaging was always meant to be.

Text messaging is no longer just a tool—it’s a strategy.

Relay makes it smarter, sharper, and more effective than ever before.