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Email Marketing Comparison

ActiveCampaign vs. Insider One

At a glance

At a glance

ActiveCampaign

Best for

Best for teams that want email marketing with deep marketing automation and a built-in CRM, and that will grow into advanced segmentation and predictive sending.

  • Small and mid-sized
  • Enterprise

Insider One

Best for

Best for enterprise marketing teams that want email, web and app personalization driven by one customer profile.

  • Enterprise

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion ActiveCampaign Insider One
Starting price From $15 / month Starter plan, billed annually, for 1,000 email contacts and 1 user. The price rises with the number of contacts. Price on request Insider One publishes no price list and no plan names. The commercial terms are set in a sales conversation after a demo.
Free trial 14-day free trial, no credit card required Not stated
API Yes, an API with webhooks, plus more than 1,000 integrations Yes, an open API with webhooks and SDKs alongside more than 100 out-of-the-box integrations in the Integration Hub
Hosting Cloud (SaaS) Cloud (SaaS), stored in regional instances to meet data residency requirements
Campaign types Yes, email campaigns with a drag-and-drop designer and more than 250 templates Yes, nine channels: email, SMS and RCS, WhatsApp, web push, web, app, site search, product discovery stories and conversational messaging
Automation and journeys Yes, marketing automation, 5 actions per automation on Starter and unlimited on Plus, Pro and Enterprise Yes, a drag-and-drop journey canvas with real-time events and triggers, more than 100 ready-made journey templates, next best channel and send-time optimization
Segmentation and personalisation Yes, segmentation from limited on Starter to advanced and premium on the higher plans, with predictive sending Yes, more than 120 segments, dynamic, behavioural and predictive, including likelihood to purchase, churn risk, lifetime value and discount affinity, with profiles for anonymous visitors
Templates and editor Yes, a drag-and-drop email designer for plain text and HTML with more than 250 pre-built templates Yes, a drag-and-drop email builder with a code view and real-time preview, AI-generated subject lines and content, one-click localization, and elements such as forms, countdowns and carousels that resolve on open
Deliverability and testing Yes, a spam check across plans and predictive sending Yes, spam testing, previews across more than 100 devices, automated IP warm-up and regional sending infrastructure
Ecommerce and CRM data Yes, contact profiles with custom fields, tags and lists, plus premium CRM integrations such as Salesforce on the higher plans Yes, a built-in customer data platform fed by CRM, analytics, ecommerce, data warehouse and point-of-sale sources, with identity resolution across devices
Integrations and API Yes, an API with webhooks plus more than 1,000 integrations Yes, an open API with webhooks and SDKs plus more than 100 out-of-the-box integrations
AI features Yes Yes
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support Email helpdesk, Chat, Community forum Not stated
Onboarding more entries Documentation and knowledge base, Video tutorials, Guided onboarding, Live online demos and webinars Personal consulting
Company size more entries Small and mid-sized, Enterprise Enterprise
Integrations Shopify, Salesforce, Zendesk, Wix, Facebook, Google Sheets, Google Ads, ChatGPT, Claude Salesforce, HubSpot, Microsoft Dynamics, Google Analytics, Amplitude, Google BigQuery, Amazon S3, Shopify, Snowflake

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Starting price ActiveCampaign From $15 / month Insider One Price on request
  • Company size ActiveCampaign Small and mid-sized, Enterprise Insider One Enterprise
  • Hosting ActiveCampaign Cloud (SaaS) Insider One Cloud (SaaS), stored in regional instances to meet data residency requirements
  • API ActiveCampaign Yes, an API with webhooks, plus more than 1,000 integrations Insider One Yes, an open API with webhooks and SDKs alongside more than 100 out-of-the-box integrations in the Integration Hub
  • Campaign types ActiveCampaign Yes, email campaigns with a drag-and-drop designer and more than 250 templates Insider One Yes, nine channels: email, SMS and RCS, WhatsApp, web push, web, app, site search, product discovery stories and conversational messaging

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

ActiveCampaign

Strengths

  • Marketing automation with unlimited automation actions on Plus, Pro and Enterprise
  • More than 1,000 integrations plus an API with webhooks
  • Active Intelligence AI features across all plans
  • Built-in CRM with contact profiles, custom fields, tags and lists

Limitations

  • Starter caps automations at 5 actions each and offers only limited segmentation
  • Prices scale with the number of contacts

Insider One

Strengths

  • Customer data platform, personalization and messaging in one product, so a segment built once works across email, web and app
  • More than 100 connectors in the Integration Hub, including Salesforce, HubSpot, Shopify, Snowflake and BigQuery
  • Predictive segments for purchase likelihood, churn risk and lifetime value
  • ISO/IEC 27001 and SOC 2, with data held in regional instances

Limitations

  • No published pricing, no plan names and no self-serve signup
  • Scoped as an enterprise platform, so a simple list-and-send operation carries a lot of unused surface
  • Value depends on how much of the existing stack the Integration Hub covers
  • Unified customer data is retained for five years by default, longer only by arrangement

Plans

Pricing

ActiveCampaign

  • Starter $15 Per month, billed annually, for 1,000 email contacts; 1 user. Entry plan with the email designer, templates and up to 5 actions per automation. Scales with contacts.
  • Plus $49 Per month, billed annually, for 1,000 email contacts; 1 user. Adds unlimited automation actions and standard segmentation. Scales with contacts.
  • Pro $79 Per month, billed annually, for 1,000 email contacts; 3 users. Adds advanced segmentation and predictive sending. Scales with contacts.
  • Enterprise $145 Per month, billed annually, for 1,000 email contacts; 5 users. Adds premium segmentation and premium integrations such as Salesforce and Microsoft Dynamics. Scales with contacts.
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What users say

Review Scores · opens after launch

ActiveCampaign

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.

Insider One

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Nothing has been published here yet, and no score is shown. How a review is checked before it appears is described below.

How we check reviews

Before sending, the author has to confirm three things: that they have used the product themselves, that they work neither for the vendor nor for a competitor, and that nobody is paying them for the review. We also ask whether the vendor invited them to write it. That answer is required, either answer is accepted, and it stays with the review.

Every review is read by a person before it appears. An email address is required and is confirmed: we send a link to it, and a review does not reach us until the author opens that link, so a review has a sender who was reachable at least once rather than being anonymous. Where what somebody writes needs backing, we ask them for evidence that they used the product, and a review that does not get it is not published. We publish positive and negative reviews alike, we pay nothing and offer nothing for a review, and we accept none that was bought or incentivised.

What we cannot do is verify a purchase. There is no shop here and no account, so whether the author really used the tool rests on their own declaration, on whatever we ask them for, and on the plausibility of what they write. We say so rather than implying a check that does not exist.

A vendor cannot buy a review, and cannot have one removed or changed because they dislike it. We remove or edit a review only if it breaks our rules or the law, for example a false statement of fact. Paid placement has no effect on which reviews appear or on any score.

Read the full version on our methodology page

Where this comes from

Where this comes from

ActiveCampaign https://www.activecampaign.com · checked against the official source on 2026-08-19

Insider One https://insiderone.com · checked against the official source on 2026-09-18

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.