Email vs AI voice for cart recovery. And why the answer is "both, in the right order."
Email cart-recovery flows recover 5–8% of abandoned carts on average. AI voice calls recover 18–32%. Three to six times more. The right question isn't "which one?". It's "how do I run them together so they compound?" Here's the honest breakdown.
What each is genuinely good at
Email-only cart recovery
- Cheap to send. Fractional cents per email
- Established channel customers expect from any e-commerce brand
- Strong deliverability infrastructure mature across providers (Klaviyo, Omnisend, Bird, etc.)
- Great at low-urgency, content-rich nudges ("here's what's in your cart, plus reviews")
Callsy
- Reaches the 70%+ of abandoners who never open the recovery email
- Recovery rate 3–6× higher (18–32% vs 5–8% for email-only)
- First touch in under 5 minutes. When intent is highest
- Bi-directional conversation. Answers objections live ("will it fit?", "is the discount real?")
- Multi-channel out of the box. Voice + SMS + WhatsApp follow-up in one agent
Feature by feature
Which one's right for you?
Choose Email-only cart recovery if…
- You haven't shipped any abandoned-cart flow yet. Start with email; it's free baseline coverage
- Your AOV is under €10 and even €0.18 per call doesn't pencil out
- You don't capture phone numbers at checkout (start there before adding voice)
Choose Callsy if…
- Your email recovery has plateaued under 8%
- Your average AOV is €40+. Voice recovery pays for itself many times over
- You operate in multiple languages or markets where translated email feels off
- You capture phone numbers and want to extract more value from that opt-in
Frequently asked
Should I turn off my email recovery flow if I add voice?
No. They're additive. Email catches the people who prefer to act on their own time; voice catches the people who would have ghosted entirely. Together they typically recover 25–40% of all abandoned carts, vs 5–8% for email alone.
What's the right cadence?
Most merchants find this works: Callsy voice at 5 minutes → email-1 at 1 hour → SMS or WhatsApp at 4 hours → email-2 at 24 hours. The voice call catches the high-intent moment; the rest catches the long tail.
Won't customers find the voice call intrusive?
Disclosed AI cart-recovery calls measure 4.7/5 customer-rated quality on average. The call is short, branded, helpful, and never pressured. Most customers appreciate being asked rather than ignored.
What about phone number capture?
If you're not capturing phone numbers at checkout yet, do that first. It's worth the small CR cost. Klaviyo SMS opt-in flows, Shopify checkout configuration, and a simple "text me my receipt" option all work.
Try Callsy free. And decide for yourself.
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