How do their growth rates compare?

Klaviyo has a month-over-month growth rate of +6.1%; Writly has —.

How does pricing compare?

Klaviyo: Paid. Free plan available with usage limits; paid marketing, service, and analytics plans scale by contact count and send volume (check the pricing page for current numbers). Writly: Paid. Pay-per-contact with a minimum deposit. The website states a $250 minimum deposit and $0.25 per prospect contacted, with the first 100 leads free, no monthly fee and no contracts. The Chrome extension itself is free to install.

What are alternatives to Klaviyo and Writly?

Other tools in related categories include Salesforce Agentforce (formerly Einstein), Grammarly, Mailchimp, Brevo, MailerLite AI Drag & Drop Editor.

Head-to-Head Benchmark

Klaviyo vs Writly

Klaviyo records 6,674,207 monthly visits with +6.1% month-over-month growth and Paid pricing. Writly records 0 monthly visits with — growth and Paid pricing.

KlaviyoPaidTraffic Leader

The AI-powered B2C CRM for email, SMS, and personalized marketing at scale

Monthly Visits

6.67M

MoM Velocity

+6.1%

Top Market

🇺🇸 United States

View Klaviyo Analysis

klaviyo.com

WritlyPaid

AI-written cold outreach, run for you across every channel

Monthly Visits

0

MoM Velocity

—

Top Market

🌐 Global

View Writly Analysis chromewebstore.google.com

Side-by-Side Traffic & Specification Matrix

Dimension / Metric	Klaviyo	Writly
Official Domain	klaviyo.com	chromewebstore.google.com
Pricing Model	Paid	Paid
Monthly Visits	6.67M (6,674,207)	0 (0)

Primary Market & Share	🇺🇸 United States (38.7%)	🌐 Global (—)

Direct Visits / mo	4.43M	0

User Rating	4.6	3.2

Supported Platforms	Website	Browser Extension

Klaviyo

The AI-powered B2C CRM for email, SMS, and personalized marketing at scale

Unified customer profiles

Every contact, event, and channel feeds one profile so segmentation, personalization, and reporting stay consistent.

Composer AI marketing agent

An agent that plans calendars, drafts campaigns, audits flows, and recommends next actions using your business context.

Email, SMS, and omnichannel messaging

Build campaigns and automated flows across email, SMS, RCS, WhatsApp, push, and social from one interface.

Predictive analytics

Forecast lifetime value, churn risk, and expected next purchase date to target the right customers at the right time.

Strengths & Pros

+Deep ecommerce integrations and a strong customer data model
+Agentic AI features speed up campaign planning and copywriting
+Email, SMS, service, and analytics unified in one platform
+Free tier makes it easy to evaluate before committing

Limitations

Frequently Asked Questions: Klaviyo vs Writly

Klaviyo has 6,674,207 monthly visits, while Writly has 0. Traffic estimates describe audience size, not product quality.

More Head-to-Head Matchups

Klaviyo vs Salesforce Agentforce (formerly Einstein)

118.58M visits/mo

Salesforce Agentforce (formerly Einstein) vs Writly

Best Alternatives to Klaviyo & Writly (12)

–Costs rise quickly as contact lists grow

–Full potential requires clean, well-structured customer data

–Large feature surface has a learning curve for small teams

Writly

AI-written cold outreach, run for you across every channel

Business data collector extension

Collect business contact information as you browse and save it directly into your Writly campaigns.

AI-written messages per channel

Cold messages are written to suit each channel — email reads like email, Instagram reads like Instagram — and each buyer persona.

Multi-channel follow-up

Automated follow-ups run across email, Instagram, LinkedIn, SMS and WhatsApp so one prospect can be reached on every channel.

Fully managed infrastructure

Domains, inboxes, sending reputation and account warm-up are handled for you, with no software to configure.

Strengths & Pros

+Handles lead sourcing, copywriting and follow-up end to end
+Per-contact pricing with no monthly fee or long contract
+Infrastructure such as domains and inbox warm-up is fully managed
+Companion extension makes it easy to add business contacts to campaigns

Limitations

–Requires an upfront deposit rather than a free trial of the full service

–The extension alone is only the data-collection part of the workflow

–The tool is now focused on cold outreach rather than general AI content generation

01

Salesforce Agentforce (formerly Einstein)

111.9M/mo

SpecialistAutonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.

AI App BuilderFreemium+2.2%

Salesforce Agentforce (formerly Einstein) website preview

02

Grammarly

58.9M/mo

Free / Open-sourceCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.

AI Writing AssistantsFreemium43% direct

#2

03

Mailchimp

10.1M/mo

Broader general-purpose email marketing features, but less specialized ecommerce data segmentation compared to Klaviyo.

AI MarketingFreemium+1.1%

#3

04

Brevo

6.5M/mo

Offers more integrated multi-channel tools like WhatsApp and live chat, but less advanced ecommerce predictive analytics.

AI Email MarketingFreemium+5.8%

Screenshot of the Brevo campaign editor with automation and audience segmentation panels

05

MailerLite AI Drag & Drop Editor

5M/mo

Simpler and more affordable for basic newsletter design, but lacks advanced predictive segmentation and revenue analytics.

No-Code&Low-CodeFreemium, Paid63% direct

06

GetResponse

2.2M/mo

Includes built-in landing page builders and webinars, but lacks Klaviyo's deep online store revenue attribution tracking.

AI MarketingFree Trial, Paid+1.3%

GetResponse dashboard showing an automated email journey in the visual builder

07

Smartlead

952.4K/mo

Free / Open-sourceAI-native cold email platform for scaling outbound without limits

AI Email MarketingFree Trial, Paid+4.3%

Smartlead master inbox with intent-based reply categories and campaign analytics

08

Robly Email Marketing

740.2K/mo

SpecialistEmail marketing with AI send-time optimization to lift opens

AI Email MarketingFree Trial, Paid+29.7%

Robly campaign builder showing email templates, audience selection and send scheduling

09

Success.ai

547.1K/mo

Free / Open-sourceAI sales platform for unlimited B2B leads and outreach

AI Lead GenerationFreemium, Free Trial+6.3%

10

ActiveCampaign AI

526.8K/mo

Provides exceptionally powerful CRM automation workflows, but has a steeper learning curve for simple email campaigns.

AI MarketingFree Trial, Paid+0.5%

ActiveCampaign automation canvas showing an AI-generated customer journey

11

Linked Helper

176.9K/mo

Free / Open-sourceDesktop-first LinkedIn outreach automation with AI-written messages

AI Lead GenerationFree Trial, Paid28% direct

Linked Helper campaign builder showing a drip sequence with AI-personalized messages

12

FinalScout

123.9K/mo

Free / Open-sourceFind verified work emails and write personalized outreach with AI

AI Lead GenerationFreemium, Free Trial, Paid, Contact for Pricing41% direct

Screenshot of FinalScout contact search results with AI-generated outreach email

#1

Visit

Salesforce Agentforce (formerly Einstein)

111.9M/mo+2.2%

Official

SpecialistAutonomous enterprise AI agents and CRM intelligence powered by Salesforce Data 360 and Atlas.

AI App Builder54% direct

Freemium

Visit

Grammarly

58.9M/mo

Official

Free / Open-sourceCross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.

AI Writing Assistants43% direct

Freemium

Visit

Mailchimp

10.1M/mo+1.1%

Official

Broader general-purpose email marketing features, but less specialized ecommerce data segmentation compared to Klaviyo.

AI Marketing57% direct

Freemium

Visit

Brevo

6.5M/mo+5.8%