SAME CATEGORY. YOUR PRIORITIES.
Customer.io vs Klaviyo
Compare evidence, costs and trade-offs. Adjust the criteria to reflect your own workflow.
MAKE THE SCORE YOURS
What matters most?
Core capabilities carry 32 points; workflow depth carries 68. AI contributes the category-specific weight shown below within those totals. Change group priorities and see every contribution update.
How the score is calculated →Documented fit across available plans · unknowns shown as ranges · no customer ratings
| Features & decision context |  Customer.io12–100/100 documented fit Core capabilities12–32 / 32 pts4/10 checks with established status Workflow depth0–68 / 68 pts0/18 checks with established status |  Klaviyo32–100/100 documented fit Core capabilities32 / 32 pts10/10 checks with established status Workflow depth0–68 / 68 pts0/18 checks with established status |
|---|---|---|
| How AI changes fitSame priorities, with and without AI | 12–100 with AI14–100 without AIFeature-fit points; not measured ROI | 32–100 with AI33–100 without AIFeature-fit points; not measured ROI |
| Supplier website | Visit Customer.io | Visit Klaviyo |
| Good fit for | Product-led teams with reliable event data and developers available for initial integration. | Retail teams that want customer behavior and multiple lifecycle channels in a shared data model. |
| Look more closely when | You want a simple newsletter bill unaffected by profile counts, objects or data design. | You need every service, AI action and messaging channel included in a single fixed fee. |
| Pricing snapshotDifferent billing units are not directly comparable | $100.00per month Essentials starts at $100/month billed monthly, including 5,000 profiles and one million emails. Pricing source | See pricingper month Profile/email subscriptions plus destination- and channel-specific mobile usage. Obtain the current USD quote or account rate card; live public pricing localized outside the US. Pricing source |
| Official WhatsApp channel 20% base weight | ||
| Core capabilityWhatsApp Business connectionConnect through a documented WhatsApp Business platform channel. | Supported4 / 4 pts Native WhatsApp and cross-channel journeys are listed. Official documentation · Oct 15, 2026Source | Supported4 / 4 pts Native WhatsApp; support handling uses Helpdesk or integrations. Official documentation · Oct 15, 2026Source |
| Core capabilityWhatsApp rich mediaUse images, files or interactive message components. | Not verified0–4 / 4 pts Not established in reviewed evidence; request this specific demonstration. Not verified · Oct 15, 2026Source | Supported4 / 4 pts Native WhatsApp; support handling uses Helpdesk or integrations. Official documentation · Oct 15, 2026Source |
Depth checkTemplate approval diagnosticsInspect WhatsApp template approval or rejection status and the reason requiring correction.Ask for a demonstrationOpen a rejected or pending template and show its status and corrective information. A scenario to run with the supplier; not a completed product test. | Not verified0–5.6 / 5.6 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–5.6 / 5.6 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
Depth checkMessaging-window eligibilityDistinguish free-form replies inside the customer-service window from template-only sends outside it.Ask for a demonstrationCompare a recent and an expired conversation and show which send options remain available. A scenario to run with the supplier; not a completed product test. | Not verified0–6.4 / 6.4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–6.4 / 6.4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
| Shared conversation handling 20% base weight | ||
| Core capabilityConversation inbox and historyView and reply to WhatsApp conversations with retained customer context. | Not verified0–4 / 4 pts Not established in reviewed evidence; request this specific demonstration. Not verified · Oct 15, 2026Source | Supported4 / 4 pts Native WhatsApp; support handling uses Helpdesk or integrations. Official documentation · Oct 15, 2026Source |
| Core capabilityTeam assignment and routingAssign WhatsApp conversations to team members or route them to a team. | Not verified0–4 / 4 pts Not established in reviewed evidence; request this specific demonstration. Not verified · Oct 15, 2026Source | Supported4 / 4 pts Native WhatsApp; support handling uses Helpdesk or integrations. Official documentation · Oct 15, 2026Source |
Depth checkHuman handoff with conversation contextTransfer or assign an active conversation while retaining the customer’s message history for the receiving person.Ask for a demonstrationTransfer a test conversation and show what the receiving agent can read. A scenario to run with the supplier; not a completed product test. | Not verified0–5.6 / 5.6 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–5.6 / 5.6 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
Depth checkTeam ownership and internal coordinationCombine assigned ownership with internal notes or collaboration that is not sent to the customer.Ask for a demonstrationAssign a conversation, leave an internal note, and show the next agent’s view. A scenario to run with the supplier; not a completed product test. | Not verified0–6.4 / 6.4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–6.4 / 6.4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
| Template and workflow automation 16% base weight | ||
| Core capabilityTemplate messagingCreate or send approved WhatsApp templates for eligible use cases. | Not verified0–3.2 / 3.2 pts Not established in reviewed evidence; request this specific demonstration. Not verified · Oct 15, 2026Source | Supported3.2 / 3.2 pts Native WhatsApp; support handling uses Helpdesk or integrations. Official documentation · Oct 15, 2026Source |
| Core capabilityTriggered WhatsApp workflowsTrigger a WhatsApp message or conversation flow from an event. | Supported3.2 / 3.2 pts Native WhatsApp and cross-channel journeys are listed. Official documentation · Oct 15, 2026Source | Supported3.2 / 3.2 pts Native WhatsApp; support handling uses Helpdesk or integrations. Official documentation · Oct 15, 2026Source |
Depth checkDelivery-aware workflow handlingUse delivery failure or message eligibility to stop, redirect, or recover an automated WhatsApp step.Ask for a demonstrationCause an ineligible or failed send and show how the workflow responds. A scenario to run with the supplier; not a completed product test. | Not verified0–4.8 / 4.8 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–4.8 / 4.8 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
Depth checkEvent-personalized templatesPopulate an approved template from event, order, or business-record properties.Ask for a demonstrationSend a test order event and populate an approved template with its identifier or value. A scenario to run with the supplier; not a completed product test. | Not verified0–4.8 / 4.8 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–4.8 / 4.8 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
| Business-system connections 12% base weight | ||
| Core capabilityCRM, store or support connectorsConnect customer context with an external business application. | Supported2.4 / 2.4 pts Editors, profiles, workflows and data interfaces. Official documentation · Oct 15, 2026Source | Supported2.4 / 2.4 pts Customer behavior and commerce data drive connected channels. Official documentation · Oct 15, 2026Source |
| Core capabilityAPIs or webhooksConnect messaging or customer data through programmable interfaces. | Supported2.4 / 2.4 pts Editors, profiles, workflows and data interfaces. Official documentation · Oct 15, 2026Source | Supported2.4 / 2.4 pts Flows API manages event-driven email/SMS and abandonment flows. Official documentation · Oct 15, 2026Source |
Depth checkConversation and message event accessRetrieve or subscribe to identifiable inbound/outbound message or conversation events.Ask for a demonstrationRetrieve an inbound reply and its conversation/contact identifiers outside the inbox. A scenario to run with the supplier; not a completed product test. | Not verified0–3.2 / 3.2 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–3.2 / 3.2 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
Depth checkWrite back to a business recordUpdate a connected CRM, order, or customer record from a WhatsApp conversation or workflow.Ask for a demonstrationChange a customer field through the conversation flow and show the changed external record. A scenario to run with the supplier; not a completed product test. | Not verified0–4 / 4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–4 / 4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
| AI assistance and agents 17% base weight | ||
| Core capabilityAI WhatsApp content or repliesUse AI specifically in WhatsApp content creation or conversation handling. | Not verified0–2.4 / 2.4 pts Not established in reviewed evidence; request this specific demonstration. Not verified · Oct 15, 2026Source | Supported2.4 / 2.4 pts Customer Agent conversations and AI service routing. Official documentation · Oct 15, 2026Source |
| Core capabilityAI WhatsApp actions or agentsUse AI for authorized WhatsApp actions or automated conversational tasks. | Not verified0–2.4 / 2.4 pts Not established in reviewed evidence; request this specific demonstration. Not verified · Oct 15, 2026Source | Supported2.4 / 2.4 pts Customer Agent conversations and AI service routing. Official documentation · Oct 15, 2026Source |
Depth checkWhatsApp AI grounded in business knowledgeUse an explicit business knowledge source to answer WhatsApp customer questions.Ask for a demonstrationAsk a specific policy question in WhatsApp and show the configured source used by the agent. A scenario to run with the supplier; not a completed product test. | Not verified0–3.2 / 3.2 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–3.2 / 3.2 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
Depth checkAI escalation to a personConfigure a WhatsApp AI assistant or agent to hand an unresolved conversation to a human.Ask for a demonstrationAsk an unanswerable or restricted question and demonstrate the human escalation. A scenario to run with the supplier; not a completed product test. | Not verified0–4 / 4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source | Not verified0–4 / 4 pts This specific workflow has not been established by the reviewed evidence. Not verified · Oct 15, 2026Source |
Depth checkTranscribe received WhatsApp voice messagesDemonstrate "Transcribe received WhatsApp voice messages" with test data. Show the result, an exception case, and the required plan.Ask for a demonstrationDemonstrate "Transcribe received WhatsApp voice messages" with test data. Show the result, an exception case, and the required plan. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
Depth checkRevoke an AI connector's WhatsApp sending accessDemonstrate "Revoke an AI connector's WhatsApp sending access" with test data. Show the result, an exception case, and the required plan.Ask for a demonstrationDemonstrate "Revoke an AI connector's WhatsApp sending access" with test data. Show the result, an exception case, and the required plan. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
| Operational detail 15% base weight | ||
Depth checkCollect structured input with WhatsApp FlowsBuild a test WhatsApp Flow with a required field. Submit valid and incomplete answers and show where results are stored.Ask for a demonstrationBuild a test WhatsApp Flow with a required field. Submit valid and incomplete answers and show where results are stored. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
Depth checkReassign a WhatsApp conversation from mobileDemonstrate "Reassign a WhatsApp conversation from mobile" with test data. Show the result, an exception case, and the required plan.Ask for a demonstrationDemonstrate "Reassign a WhatsApp conversation from mobile" with test data. Show the result, an exception case, and the required plan. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
Depth checkHandle business voice calls within WhatsAppDemonstrate "Handle business voice calls within WhatsApp" with test data. Show the result, an exception case, and the required plan.Ask for a demonstrationDemonstrate "Handle business voice calls within WhatsApp" with test data. Show the result, an exception case, and the required plan. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
Depth checkCancel a scheduled WhatsApp message before dispatchDemonstrate "Cancel a scheduled WhatsApp message before dispatch" with test data. Show the result, an exception case, and the required plan.Ask for a demonstrationDemonstrate "Cancel a scheduled WhatsApp message before dispatch" with test data. Show the result, an exception case, and the required plan. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
Depth checkValidate WhatsApp webhook signaturesDemonstrate "Validate WhatsApp webhook signatures" with test data. Show the result, an exception case, and the required plan.Ask for a demonstrationDemonstrate "Validate WhatsApp webhook signatures" with test data. Show the result, an exception case, and the required plan. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
Depth checkHide unavailable products in WhatsApp catalog recommendationsDemonstrate "Hide unavailable products in WhatsApp catalog recommendations" with test data. Show the result, an exception case, and the required plan.Ask for a demonstrationDemonstrate "Hide unavailable products in WhatsApp catalog recommendations" with test data. Show the result, an exception case, and the required plan. A scenario to run with the supplier; not a completed product test. | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source | Not verified0–2.5 / 2.5 pts This specific check has not been verified. Missing evidence does not mean the capability is absent. Ask for a demonstration in the proposed plan. Not verified · Oct 21, 2026Source |
| AI usage and limits | An AI Agent beta offers core execution skills, with LLM actions and plan-based session, custom-skill and routine limits.
| Composer is an AI marketing agent that audits or creates segments and campaigns; credit consumption depends on task size and complexity.
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| Additional costs to ask about |
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| Integration shortlist |
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| Research date | Oct 15, 2026 Full source record → | Oct 15, 2026 Full source record → |