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Side-by-side comparison · Marketing & Ads

HubSpot vs Klaviyo vs Parker

Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.

HubSpot

4.1

From From $800/mo

Best overall

Klaviyo

4.3

From From $20/mo

Parker

3.7

From $299/mo

Comparing 3 tools, the maximum.

At a glance

Pick it if: Service businesses, agencies and B2B teams that need contacts, deals and marketing in one system.

Best overall

Pick it if: Online stores that want their email and SMS to run on real customer behaviour.

Pick it if: E-commerce brands and agencies spending on Meta ads who need a steady flow of tested ad ideas and briefs.

Overview

AttributeHubSpotKlaviyoParker
In one lineA free CRM with AI agents that handle leads, support and content for you.Email and SMS for online stores, with AI that writes, segments and predicts.An AI creative strategist that researches your market and writes ad hooks and briefs.
Pricing modelFreemiumFreemiumPaid
Starting priceFrom $800/moFrom $20/mo$299/mo
Free plan Yes Yes No
Works with Claude Code Yes Yes Yes

Rating breakdown

Our scores out of 5. The higher bar in each row is highlighted.

AttributeHubSpotKlaviyoParker
Overall rating4.14.3Winner3.7
Ease of useHow quickly someone non-technical gets value from it.
4.0
4.0
4.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
5.0
5.0
4.0
Output qualityHow good the results are before you fix them.
4.0
4.5
3.5
Value for moneyWhat you get for the price, including the free plan.
3.5
3.5
3.0
Speed & reliabilityHow fast it is and how often it falls over.
4.0
4.5
4.0

Feature comparison

A tick means it does this today. A dash means we haven't checked.

AttributeHubSpotKlaviyoParker
Access & platform
Free plan Yes Yes No
Mobile app Yes Yes No
Desktop app No No No
Browser extension Yes No–
API access Yes Yes–
Teams & business
Team workspace Yes Yes Yes
Enterprise plan or SSO Yes Yes Yes
Connects to other apps Yes Yes Yes
Open source or self-hosted No No No
AI abilities
Works with your files Yes Yes Yes
Understands images–––
Makes images Yes– No
Makes video No No No
Writes code No No No
Runs agents or automations Yes Yes Yes
Learns your brand or style Yes Yes Yes
Works in many languages Yes Yes–
Capabilities score12/ 1710/ 176/ 17

Pricing

Plans as listed on each vendor's site when we last checked. Confirm before you buy.

AttributeHubSpotKlaviyoParker
Plans

Free

Free

Anyone who needs a CRM and basic marketing tools without a budget.

Free

Free

New stores building their first flows.

StarterOur pick

$299/mo

Brands spending up to $100K a month on Meta ads.

Marketing Hub StarterOur pick

$20/seat/mo, currently $7/seat/mo for new customers

Small teams ready to remove the branding and send more.

EmailOur pick

From $20/mo

Most stores once they pass 250 contacts.

Growth

$499/mo

Brands spending up to $500K a month on Meta ads.

Marketing Hub Professional

From $800/mo billed yearly, or $890/mo

Marketing teams that need real automation.

Email and SMS

From $35/mo

Stores that want text messages in the same flows.

Scale

$699/mo

Brands spending up to $2M a month on Meta ads.

Marketing Hub Enterprise

From $3,600/mo

Large teams with several brands or business units.

Enterprise

Custom

Large brands with many stores or markets.

Agency or Enterprise

Custom

Agencies running many client accounts, and very large brands.

Which plan to pickRun the free CRM for as long as you can; it covers most small businesses. Starter is the sensible first paid step when you want the branding gone and more sends. Only move to Professional when you have a specific automation in mind that will pay for the jump.Start on Free and build your welcome and abandoned cart flows before you pay anything. Move to Email when you cross 250 contacts, and only add SMS once email is working, because text messages cost extra per send.Your plan is set by your monthly Meta ad spend, not by features: every tier gets the full product. Most small brands will land on Starter. Agencies should book a call for a custom price.

Key features

AttributeHubSpotKlaviyoParker
Standout features
  • Free CRM
  • Breeze agents
  • Marketing email and forms
  • Workflows
  • Reporting
  • Data quality tools
  • Flows
  • Segments from plain English
  • Predictive analytics
  • Email and SMS in one
  • AI writing and campaign builder
  • Customer Agent
  • Market research
  • Meta ad account analysis
  • Brand profile
  • Strategy chat
  • Hooks, scripts and briefs
  • Slack and MCP

Pros and cons

AttributeHubSpotKlaviyoParker
Pros
  • One of the most generous free CRMs around
  • Marketing, sales and support share the same customer record
  • Breeze agents take over lead research, support answers and first drafts
  • Starter tiers are affordable per seat
  • Enormous library of integrations and agencies that know it
  • Deepest store integration of any email tool, so targeting runs on real purchase data
  • Flows and segments are quick to set up from templates and plain English
  • Email and SMS live in one place with one set of customer data
  • Predictive analytics tell you who to spend effort on
  • Huge ecosystem of Shopify apps and agencies that already know it
  • Covers the research and briefing work most ad tools skip
  • Uses your own reviews, comments and ad data, so ideas are specific to your brand
  • Unlimited usage and team members on every plan
  • Built by a working ad agency, so the frameworks come from real campaigns
  • MCP server for working with it in Claude
Cons
  • Professional and Enterprise are a steep jump, with onboarding fees on top
  • Marketing contacts are a separate limit, and costs rise with your list
  • Many AI features draw on a credit allowance that runs out
  • Weaker than Klaviyo for ecommerce behaviour-based email
  • Gets expensive fast as your list grows, and every profile counts toward the bill
  • SMS is a separate cost on top of the plan
  • Email support stops after 60 days on the free plan
  • Overkill for service businesses and plain newsletters
  • $299 a month minimum with no free plan, so it is out of reach for small or new advertisers
  • Very new, with no independent reviews yet; nearly all the praise is from the company or its own customer quotes
  • Writes ideas and briefs only, it does not make the ads
  • Built around Meta ads; Google and other channels get little attention

Who each one is for

AttributeHubSpotKlaviyoParker
Best for
  • Tracking leads and deals
  • B2B email marketing
  • Chatbots that answer customers
  • Keeping contact data clean
  • Abandoned cart recovery
  • Segments from plain English
  • Post-purchase flows
  • SMS campaigns
  • Predicting customer value
  • Writing hooks, scripts and angles for Meta and TikTok ads
  • Turning customer reviews into ad concepts
  • Briefing UGC creators and editors
  • Keeping an eye on competitor ads and TikTok trends
You'll find it used by
  • B2B teams
  • Agencies
  • Consultants
  • Service businesses
  • Shopify stores
  • Ecommerce marketers
  • Agencies
  • DTC brands
  • E-commerce brands
  • Creative strategists
  • Performance agencies
  • Media buyers

Questions people ask

Which is better, HubSpot, Klaviyo or Parker?

Klaviyo scores highest overall in our ratings (HubSpot 4.1/5, Klaviyo 4.3/5 and Parker 3.7/5). HubSpot is best for tracking leads and deals and B2B email marketing. Klaviyo is best for abandoned cart recovery and segments from plain English. Parker is best for writing hooks, scripts and angles for Meta and TikTok ads and turning customer reviews into ad concepts.

Which is cheaper, HubSpot, Klaviyo or Parker?

HubSpot: There's a free plan, and paid plans start at From $800/mo. Klaviyo: There's a free plan, and paid plans start at From $20/mo. Parker: There's no free plan. Paid plans start at $299/mo.

How we compare

Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.

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