ComparisonMailblocks vs Topol

Topol Plugin is the product closest to Mailblocks: an MJML-based editor that loads from Topol’s servers into an iframe and is billed by monthly active users. The differences are in price, in what each plan includes and in how the editor is protected.

At a glance

Aspect	Mailblocks	Topol Plugin
Pricing model	Monthly active editor users	Monthly active users (unique userId), with users included in each plan and a published price per extra user
Entry price	$49 / month for 50 users	$70 / month for 50 users, $1.60 per extra user
Free trial	14 days, no card	14 days
White label	From the first paid plan	On every paid plan
AI features	Guided AI template builder on every plan	AI Assistant on every plan; AI Chat and your own model from Expansion ($140 / month)
Output	MJML, HTML and design JSON	MJML-based; JSON and HTML
How the editor is delivered	Hosted frame; your bundle gets a small loader	Hosted loader script, editor in an iframe; wrappers for React, Vue, Svelte and Angular
Domain licensing	Enforced by the browser through frame-ancestors	The public token only works on the domains configured for it
Self-hosting	Editor hosted by Mailblocks; designs and images can stay with you	Editor not self-hosted; your own storage bucket from Expansion, self-hosted storage on Business

Competitor information checked on October 13, 2026 from their public website. Prices change; please check their site before deciding.

When Topol may suit you better

You need comments, roles and permissions, custom blocks or synced sections in the editor (Business plan).
Your users need the interface in many languages: Topol lists 21, Mailblocks offers 7.
You prefer paying a published price per extra user to a fixed monthly allowance.
You want official wrappers for Svelte or Angular.

When Mailblocks is the better fit

You want to start lower: $49 / month for 50 active users, with white labelling and the AI builder included.
You run several production domains, or wildcard subdomains for tenants, on a mid-sized plan.
You want refused embeds, invalid signatures and limit hits listed in a security log.
You want dark-mode variants of an email designed right in the editor.

Pricing