Sumo

Sumo is a set of free tools for growing email lists with popups, welcome mats, and share buttons. It installs on a website in minutes and adds a popup, a full-screen welcome mat, a smart bar, and social share buttons — all designed to turn visitors into email subscribers.

Key Features

Popup and welcome mat list builders
Smart bar for announcements
Social share buttons
Integrations with major email platforms
Basic analytics and reporting
Easy install on any website

Pricing

Plan	Price	Details
Free	$0	Core popups, welcome mat, and share buttons.
Pro	$39/mo	From $39/month; advanced targeting, A/B testing, and more features.

Prices as listed in 2026 research. Always check the official site for the latest price — plans change. Free plan: Yes — it has a free plan.

Best for: bloggers and small sites that want free list-building tools to start growing.
Popular with: Marketers, Business Owners, Writers

How it works

The tools are deliberately simple: pick a design, set when it appears, and connect it to your email platform. Sumo integrates with Mailchimp, Kit, and other email tools, so new subscribers flow straight into your list. It is popular with bloggers and small sites that want list growth without paying for a full marketing suite.

Sumo has a free plan with core list-building tools. The Pro plan costs $39 per month, unlocking advanced targeting, A/B testing, and more features. For a new site that needs to start capturing emails today, the free plan is a good place to begin.

Pros and Cons

✓ Pros

Free plan covers the basics
Very easy to install and use
Good for new blogs and small sites
Works with all major email tools

✗ Cons

Free plan is limited in features and branding
Advanced tools need the Pro plan
Analytics are basic on the free plan

Key Features

Pricing

How it works

Pros and Cons

✓ Pros

✗ Cons

Related Tools

Copy.ai

HubSpot

Mailchimp