Klaviyo nurtures the people who already bought. bitbybit nurtures everyone before that — and stays with them after. Most brands run both.
Same Shopify store, different audience.
bitbybit is the answer for the audience email CRM structurally can't reach: WhatsApp inquirers, IG DM handoffs, abandoned carts, broadcast subscribers, CTWA leads — anyone whose phone number lands in the customer record the moment they message, not at checkout. Pick bitbybit if you want a conversational customer record that begins at the first conversation, with AI agent on live Shopify catalog and broadcast / cart recovery on WhatsApp.
Pick Klaviyo if your priority is the deepest email + SMS engine on Shopify (and now a fourth WhatsApp channel inside the same platform) for nurturing the buyer list you build at checkout.
Most high-growth Shopify brands run both: Klaviyo for the email + SMS nurture cycle on existing buyers, bitbybit for the WhatsApp audience that arrives before checkout.
Bottom line: Email and SMS CRM nurture buyers. bitbybit nurtures everyone before they become one.
Klaviyo populates the customer record from checkout data and pixel events — buyer-list shaped. bitbybit populates the customer record from the first WhatsApp conversation — pre-purchase audience shaped. Different points on the funnel, different addressable audience.
Built around the broadcast — chat marketing, email/SMS, and cart recovery. They reach and re-sell to a list, but there’s no support spine and no commerce record; the agent sees a contact, not a person.
Best for: Brands whose job is reaching a list — creator / IG funnels, email/SMS nurture, or cart recovery — with support handled somewhere else.
One AI agent that answers support and drives the repeat sale, on one customer record — built unified, with Shopify as source of truth.
Best for: D2C and Shopify brands where WhatsApp is the primary — or live — sales and retention surface.
The dominant Shopify-native email + SMS marketing CRM. Added native WhatsApp as a fourth channel in 2026. The standard for post-purchase email nurture on Shopify.
The customer record begins at the first conversation, not at checkout. Pre-purchase visitors who message on WhatsApp are in your CRM the moment they raise their hand.
Keep Klaviyo for the email + SMS nurture cycle on buyers. Add bitbybit for the WhatsApp audience that arrives before checkout.
The risk with AI on your store is a bot that hallucinates a price, sounds nothing like you, and torches a customer relationship. bitbybit is built so it can’t — you see it, shape it, and stay in the loop.
Build and tune your agent in the Playground against real conversations. Nothing reaches a customer until you’ve seen exactly how it answers.
Outside what it knows — a price exception, a policy edge case — it says so and hands to a human with the full thread, instead of inventing an answer.
Tone, rules, and what it can and can’t say are configured in AI Studio — so it sounds like your brand, not a generic chatbot.
Your customer record and conversations live in your workspace, yours to export any time, with auditable logs in AI Studio.
And every answer is grounded in your live Shopify catalog — current product, price, and stock — so it answers from your store, not the internet’s guess at your business.
Rows are value-framed (what changes in your operation), not feature-framed. The "so what" column is the question your CFO will ask anyway.
| What we compared | Klaviyo | bitbybit Recommended | So what? |
|---|---|---|---|
| Customer record begins at first conversation (pre-purchase) | Record begins at checkout | bitbybit captures the phone number the moment someone messages — so the IG inquirer and the WhatsApp asker are in the CRM before they buy. Email/SMS CRM only sees them after checkout. | |
| Customer record begins at first conversation (pre-purchase) — so what: bitbybit captures the phone number the moment someone messages — so the IG inquirer and the WhatsApp asker are in the CRM before they buy. Email/SMS CRM only sees them after checkout. | |||
| Addressable mid-funnel audience (abandoners, IG + WhatsApp inquirers) | Via paid retargeting only | On Klaviyo, mid-funnel prospects are reachable only through paid Meta retargeting. On bitbybit, the ones who've messaged are in the WhatsApp conversation already — addressable directly. | |
| Addressable mid-funnel audience (abandoners, IG + WhatsApp inquirers) — so what: On Klaviyo, mid-funnel prospects are reachable only through paid Meta retargeting. On bitbybit, the ones who've messaged are in the WhatsApp conversation already — addressable directly. | |||
| AI agent on live Shopify catalog inside the thread | AI features for email subject lines / segments | bitbybit's agent reads live inventory, builds carts, sends payment links, and resolves orders in-thread. Klaviyo's AI lives in the editor, not in the conversation. | |
| AI agent on live Shopify catalog inside the thread — so what: bitbybit's agent reads live inventory, builds carts, sends payment links, and resolves orders in-thread. Klaviyo's AI lives in the editor, not in the conversation. | |||
| WhatsApp as the lead channel (not a fourth add) | WhatsApp added in 2026 | Klaviyo's WhatsApp is one of four channels in an email-first platform. bitbybit's platform is shaped around the WhatsApp thread from day one. | |
| WhatsApp as the lead channel (not a fourth add) — so what: Klaviyo's WhatsApp is one of four channels in an email-first platform. bitbybit's platform is shaped around the WhatsApp thread from day one. | |||
| Email + SMS automation depth | Klaviyo wins this row decisively. If your job is post-purchase email/SMS nurture, Klaviyo is the right shape. bitbybit doesn't run email. | ||
| Email + SMS automation depth — so what: Klaviyo wins this row decisively. If your job is post-purchase email/SMS nurture, Klaviyo is the right shape. bitbybit doesn't run email. | |||
| Shopify-native integration | Both are Shopify Partners. Klaviyo is the deepest email integration on the platform; bitbybit is the deepest WhatsApp + AI agent integration. | ||
| Shopify-native integration — so what: Both are Shopify Partners. Klaviyo is the deepest email integration on the platform; bitbybit is the deepest WhatsApp + AI agent integration. | |||
| Official Meta Tech Partner | Both meet the WhatsApp number safety bar. | ||
| Official Meta Tech Partner — so what: Both meet the WhatsApp number safety bar. | |||
Klaviyo pricing tiers by contact-list size and channel mix — see klaviyo.com/pricing. bitbybit pricing is a flat platform fee — see /pricing. WhatsApp message fees on both platforms are Meta's published rates (e.g., Brazil ~$0.0625, Indonesia ~Rp 550 marketing / Rp 300 utility); bitbybit passes those through at cost.
Three scenarios where Klaviyo is what you should buy. We’d rather lose the demo than waste your quarter.
Not sure which platform fits?
30-minute scoping call. We’ll tell you honestly — including when Klaviyo or another tool is the right call for you.
No. Most high-growth Shopify brands run both. Klaviyo handles the email + SMS nurture cycle on the buyer list. bitbybit handles the WhatsApp audience — pre-purchase visitors, IG DM handoffs, abandoned carts, broadcast subscribers — most of whom never end up on the email list.
Klaviyo added WhatsApp in 2026 as a fourth channel in an email-first platform — fine for sending WhatsApp messages to your existing email list. bitbybit is shaped around the WhatsApp thread from day one: AI agent on live Shopify catalog, in-thread cart and payment, and a customer record that begins at the first conversation rather than at checkout.
We handle the transition — WhatsApp number transfer, catalog and contact import, workflow rebuild, and a 7-day side-by-side option so you can compare AI quality in production before you commit. Zero downtime, no contract lock-in.
We handle the WhatsApp Business API number transfer between BSPs. Typical timeline: 1–3 days. Zero downtime — your customers keep messaging the same number.
One-click Shopify catalog sync. For non-Shopify stacks, we import your product feed, contacts, and conversation history with a migration engineer paired to your account.
We run alongside your current tool for up to 7 days. Compare AI quality, response time, and conversion in production before you commit.
When the data backs the decision, we cut over during low-traffic hours. No contract penalties. Total typical migration: 3–5 business days.
Brands considering Klaviyo usually shortlist:
Every claim on this page links to a public source. Pricing comes from Klaviyo’s own pricing page; review quotes are from G2, Capterra, or vendor community threads. We refresh on a 60-day cycle.
Last reviewed: 2026-05-26 · Spot something out of date? Email [email protected] — we’ll fix within a week.
The proactive marketing CRM for Shopify brands. Recover carts, send broadcasts, and drive repeat sales natively on WhatsApp.
Shopify Partner