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Side-by-side comparison · Marketing & Ads

Helium 10 vs Klaviyo

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

Helium 10

3.8

From $129/mo

Best overall

Klaviyo

4.3

From From $20/mo

Comparing 2 tools. Add one more if you like.

At a glance

Pick it if: Amazon sellers, from people launching their first product to brands doing millions a year.

Best overallBest valueEasiest to use

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

Overview

AttributeHelium 10Klaviyo
In one lineProduct research, keywords, listings and ads for selling on Amazon.Email and SMS for online stores, with AI that writes, segments and predicts.
Pricing modelFreemiumFreemium
Starting price$129/moFrom $20/mo
Free plan Yes Yes
Works with Claude Code Yes Yes

Rating breakdown

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

AttributeHelium 10Klaviyo
Overall rating3.84.3Winner
Ease of useHow quickly someone non-technical gets value from it.
3.0
4.0
FeaturesHow completely it covers its own job, and how well the pieces fit together.
5.0
5.0
Output qualityHow good the results are before you fix them.
4.0
4.5
Value for moneyWhat you get for the price, including the free plan.
3.0
3.5
Speed & reliabilityHow fast it is and how often it falls over.
4.0
4.5

Feature comparison

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

AttributeHelium 10Klaviyo
Access & platform
Free plan Yes Yes
Mobile app Yes Yes
Desktop app– No
Browser extension Yes No
API access Yes Yes
Teams & business
Team workspace Yes Yes
Enterprise plan or SSO Yes Yes
Connects to other apps Yes Yes
Open source or self-hosted No No
AI abilities
Works with your files– Yes
Understands images––
Makes images No–
Makes video No No
Writes code No No
Runs agents or automations Yes Yes
Learns your brand or style– Yes
Works in many languages Yes Yes
Capabilities score9/ 1710/ 17

Pricing

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

AttributeHelium 10Klaviyo
Plans

Free

Free

Looking around before you commit.

Free

Free

New stores building their first flows.

PlatinumOur pick

$129/mo, or $99/mo billed yearly

Sellers under about $100K a year.

EmailOur pick

From $20/mo

Most stores once they pass 250 contacts.

Diamond

$359/mo, or $279/mo billed yearly

Established sellers up to about $10M a year.

Email and SMS

From $35/mo

Stores that want text messages in the same flows.

Enterprise

From $1,499/mo billed yearly

Big brands and agencies.

Enterprise

Custom

Large brands with many stores or markets.

Which plan to pickPlatinum covers research for most sellers getting started. Move to Diamond once ads and listing work take up real time each week, because that is where the automation lives.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.

Key features

AttributeHelium 10Klaviyo
Standout features
  • Product research
  • Keyword research
  • AI listing builder
  • Ads management
  • Profits and inventory
  • Chrome extension
  • Flows
  • Segments from plain English
  • Predictive analytics
  • Email and SMS in one
  • AI writing and campaign builder
  • Customer Agent

Pros and cons

AttributeHelium 10Klaviyo
Pros
  • Covers almost every part of selling on Amazon
  • Deep keyword and competitor data
  • Supports Walmart and TikTok Shop as well as Amazon
  • Lots of free training for new sellers
  • MCP server lets Claude query your Helium 10 data
  • 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
Cons
  • Expensive, and the cheap entry plan has gone
  • Steep learning curve with dozens of tools
  • Frequent complaints about billing, renewals and cancellations
  • Free plan is too limited for real research
  • 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

Who each one is for

AttributeHelium 10Klaviyo
Best for
  • Finding products to sell on Amazon
  • Amazon keyword research
  • Writing listings that rank
  • Managing Amazon ads
  • Tracking profit and inventory
  • Abandoned cart recovery
  • Segments from plain English
  • Post-purchase flows
  • SMS campaigns
  • Predicting customer value
You'll find it used by
  • Amazon FBA sellers
  • E-commerce brands
  • Amazon agencies
  • Private-label sellers
  • Shopify stores
  • Ecommerce marketers
  • Agencies
  • DTC brands

Questions people ask

Which is better, Helium 10 or Klaviyo?

Klaviyo scores highest overall in our ratings (Helium 10 3.8/5 and Klaviyo 4.3/5). Helium 10 is best for finding products to sell on Amazon and amazon keyword research. Klaviyo is best for abandoned cart recovery and segments from plain English.

Which is cheaper, Helium 10 or Klaviyo?

Helium 10: There's a free plan, and paid plans start at $129/mo. Klaviyo: There's a free plan, and paid plans start at From $20/mo.

Which is easier to use, Helium 10 or Klaviyo?

Klaviyo rates highest for ease of use in our scores. Online stores that want their email and SMS to run on real customer behaviour.

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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