Callsy + Klaviyo. Voice on top of email, not instead of it.
Klaviyo is the e-commerce email + SMS standard for a reason. Segmentation, flows, deliverability, attribution. We aren't replacing it. Callsy adds AI voice as a step inside your existing Klaviyo flows: the channel that recovers the 70% of abandoners who never opened your email.
What each is genuinely good at
Klaviyo
- Best-in-class e-commerce segmentation and flow builder
- Deep Shopify, WooCommerce, BigCommerce, Stripe integrations
- Strong deliverability infrastructure and reputation management
- Sophisticated attribution and analytics across email and SMS
Callsy
- Voice channel that reaches abandoners who ignore email (70%+ of any list)
- Native Klaviyo webhook integration. Drop a voice call into any flow
- Bi-directional events. Voice outcomes flow back to Klaviyo as profile events
- Multi-channel: voice + SMS + WhatsApp in one orchestration
Feature by feature
Which one's right for you?
Choose Klaviyo if…
- You don't have Klaviyo yet. Get Klaviyo first, then add Callsy on top
- Your only goal is email + SMS marketing automation (Callsy doesn't do email)
- You're early-stage and the email channel alone is moving the needle for you
Choose Callsy if…
- You already have Klaviyo running and recovery has plateaued under 8%
- You want to reach the 70%+ of abandoners who never opened your email
- You want to add WhatsApp to your recovery mix without a separate tool
- You want voice-channel attribution back in Klaviyo, where your team already looks
Frequently asked
Will Callsy duplicate-touch my Klaviyo customers?
Not if you wire it sensibly. The standard pattern: Callsy fires within 5 minutes of abandonment, your Klaviyo email-1 fires at 1 hour, SMS at 4 hours. Use Klaviyo's conditional splits to suppress further touches if Callsy recovered the cart.
How do I add a Callsy step to a Klaviyo flow?
Inside any flow, add a Webhook action with the Callsy URL. Map Klaviyo's variable tags (profile, event) into the payload. Callsy posts outcomes back as custom events for the rest of your flow to branch on.
Does Callsy replace Klaviyo SMS?
No. And you don't need it to. Run Klaviyo SMS for marketing and use Callsy for voice + voice-followup SMS on recovery and win-back. Different jobs, complementary channels.
Will it work with Klaviyo CDP segments?
Yes. Any segment (including computed segments and predictive analytics) can be the source for a Callsy campaign, with real-time sync via webhook.
Try Callsy free. And decide for yourself.
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