iContact vs Thunderbird

Mailchimp

Gmail

Constant Contact

Microsoft Outlook

Mailjet

Compare iContact and Thunderbird based on features, pricing, verified reviews, integrations & more on GetApp. Find out which software is best for your business in 2026.

Constant Contact is a digital and email marketing platform that provides tools for creating, sending, and tracking email campaigns. The platform offers customizable email templates, AI writing assistance, and automation features to help businesses reach audience. Additionally, it includes social media marketing capabilities, SMS marketing, and multi-account solutions for organizations managing multiple locations or teams.

Mailchimp is a marketing automation platform that allows users to create, send & analyze email & ad campaigns, with email templates, landing pages, and a mobile app

Kit, formerly ConvertKit, is a marketing & lead generation automation solution aimed at professional bloggers, with opt-in forms, drip email marketing, landing pages, and more

iContact's easy-to-use platform provides you with the tools to grow your business anytime, anywhere. To create your iContact Free account, visit iContact.com via the link in our bio. No credit card required!

A/B Testing

Access Controls/Permissions

Activity Dashboard

Activity Tracking

Automated Publishing

Automated Scheduling

Autoresponders

Campaign Analytics

Campaign Management

Campaign Planning

Campaign Scheduling

Campaign Segmentation

CAN-SPAM Compliance

Channel Management

Click Tracking

Contact Management

Content Library

Content Management

Customer Segmentation

Customizable Branding

Customizable CTAs

Customizable Fields

Customizable Forms

Customizable Templates

Data Import/Export

Data Visualization

Drag & Drop

Drip Campaigns

Email Campaign Management

Email Distribution

Email Management

Email Marketing

Email Monitoring

Email Templates

Email Tracking

Engagement Tracking

Event Triggered Actions

Image Library

Landing Pages/Web Forms

Lead Capture

Lead Generation

Lead Management

Lead Qualification

List Management

Mailing List Management

Marketing Automation

Mobile Optimization

Multi-Account Management

Multi-Campaign

Multivariate Testing

Performance Metrics

Post Scheduling

Real-Time Analytics

Real-Time Data

Real-Time Notifications

Reporting & Statistics

Reporting/Analytics

Response Management

ROI Tracking

Segmentation

Social Media Integration

Spam Blocker

Subscription Management

Template Management

Third-Party Integrations

Visual Analytics

Web Forms

Workflow Management

WYSIWYG Editor

iContact

Android

Web-based

Book and Product Reviewer

You can allow this program to deal with emails instead of answering each on yourself. It's really a wonderful program and a huge help with your email returns.

Marketing Director

I had to double enter a lot of info with my fundraising software and then to i-contact. There was a lack of integration that I found frustrating.

Marketing Consultant

I like its enhanced features and how easy it has been to adapt to it. I like the customer service representatives and their willingness to help and answer all my questions.

Digital Production Artist

I enjoy that iContact is easy to use, intuitive, and a great price for all that is packed into what you get. You also get great customer service with them.

owner

They tried to steal another month of billing and made me dispute with my CC company.

marketing manager

I like the preview and ability to send test message. I like the social media integration.

Principal

Great customer service experience. Quick and intelligent responses.

Even though the charity I worked with started using another service, iContact demanded payment for a period of time after we had made the switch. I personally found that in poor taste.

Designer

My experience with iContact was good and was the first email marketing software I ever used. It was very easy and quick to get started and set up an email campaign.

Marketing Manager

I contact is easy to use and great for emailing to different channels. It has many engaging features such as image, hyperlink, and video options.

Senior Vice President

Salesforce integration set up is easy, and customer service for any issues was very responsive.

Marketing Associate

Overall, iContact is great for sending our mass emails to our guests and we will continue to use for years to come.

Owner

I enjoy using IContact because it does what is set up to do and that is to send bulk emails to prospective buyers.

I recommend using this app for all those that send bulk emails to their customers.

Graphic Designer

I really liked the built-in themes that were available to choose from when creating an email, as well as the option to import my email from a URL.

The features may be a little limited compared to Mail Chimp.

IContact is easy to use, even for those who may not be very tech savvy.

Digital Project Manager

Good overall, but we needed to have more emails sent out monthly to justify the cost.

iContact screenshot: Build a custom layout or choose a design from the customizable template library

iContact screenshot: A/B split content testing allows users to conduct tests with a small percentage of subscribers to determine which content will resonate best with the audience

iContact screenshot: Automation gives users complete control over campaign send times

iContact screenshot: Activity Dashboard

iContact screenshot: Easily design and embed custom sign-up forms on the site and manage subscribers

iContact screenshot: Merge fields

Freelancers

Large Enterprises

Mid Size Business

Non Profit

Public Administrations

Small Business

Microsoft Outlook is a personal information manager from Microsoft which helps users communicate, manage schedules & find what they need quickly & easily

Gmail is a free, advertising-supported email service offered as part of Google Workspace (formerly G Suite), with 15GB of storage, color-coded inbox filters, and 'unsend' button

With GDPR-compliant infrastructure and proven deliverability, Mailjet is the best Email Marketing Software & Email API for Teams. Marketers  design, deliver, and automate  email newsletter while developers power transactional email via robust API platform. 

Thunderbird is an on-premise email management platform designed to help businesses securely handle, search, organize, archive, and filter email conversations from within a unified platform. The Mail Account Setup Wizard allows professionals to set up existing user accounts with information, such as email address, name, and password.


Alerts/Notifications

Archiving & Retention

Inbox Management

Mobile App

Multiple User Accounts

Search/Filter

Signature Management

Tagging

Thunderbird

Linux

Windows

SEO supervisor

I am thrilled to share my exceptional experience with Thunderbird, As a professional constantly inundated with emails, finding an effective and efficient solution has been a game-changer for me.

CEO, IT Admin, Purchasing Decisions

I am generally satisfied with Thunderbird and have been using it now for 4-5 years. It provides an affordable solution that is relatively easy to use.

Student

Thanks for this innovative mailbox helping me benefit my time for more time at home. Please do keep working for this best service.

Founder & CEO

Moreover, it also supports adding SMTP mail which is really helpful. Also, the notifications are quite reliable and timely.

E-commerce Consultant

Highly recommended, the best free email client.

Artist/Producer/Visual Designer

Thunderbird is a fast and reliable program, supports a lot of email accounts without paying a single cent.

I like that it's free and open source, and it's incredibly customizable. There's a ton of community extensions that are available to be installed with minimal setup.

senior system specialist

I didn't come up with anything that bothered me.

Teacher: Digital Illustration 

I find the interface very, very dated. It is cluttered, the fonts are 1990's  and the way that I can't read an email without scrolling down drives me crazy.

Operations Analyst

Free and Open Source: Thunderbird Mail is a free and open-source application, which makes it a cost-effective solution for individuals and small businesses.

founder

Thunderbird also has many great add-ons, if you combine thunderbird built in features with some add-ons, in terms of features, thunderbird is able to compete with other paid software.

Verification expert 

Lack of support: Thunderbird is maintained by a small community of developers, so users may not receive prompt support or updates.

Director

It has a rather childish menu bar layout in black and white.

Digital Marketer

Ability to integrate with Protonmail is a plus as well.

Tech Acct MGR

For the most part it is an easy setup of your email. It is a free source email so you can't beat the price.

Ease of use, simple set-up. We use this across all our platforms.

Senior Lecturer

Thunderbird updates often break existing add-ons and there is a delay until these add-ones are updated to work with the latest version.

You email is archived locally and the size of the archive is only limited by your available hard drive space. Thunderbird also integrates well with providers like Gmail.

iContact vs Thunderbird Comparison (2026)

iContact

Thunderbird

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives