How Proofel compares
There are many ways to gather feedback on a design. Here is what sets Proofel apart when the design is an email campaign that needs a confident sign-off.
Built for email, not generic files
Proofel reviews the rendered HTML email itself — device widths, dark mode, links, and file size — rather than treating it as a flat image or PDF.
Pixel-pinned feedback on the design
Comments attach to the exact element they are about, so feedback is unambiguous and stays with the design across versions and reviewers.
No login for reviewers
Clients and stakeholders open one link, enter a name, and comment or approve. There is nothing to install and no account to create.
Real approvals with an audit trail
Approval links ask for a decision, not just feedback, and every Approve or Request changes is recorded — including multi-step sign-offs.
Pre-send checks in one place
A link visualizer, a dark-mode simulator, and a Gmail-clipping cleanup live alongside the review, so the details get verified before the send.
It does not replace your ESP
Proofel is the sign-off step. You keep sending from Klaviyo, Mailchimp, Braze, HubSpot, or wherever you send today.
Where it fits
Proofel complements your rendering tests and your ESP rather than replacing them.
Common comparisons
- Is Proofel an alternative to email testing tools like Litmus or Email on Acid?
- They solve different problems and are often used together. Litmus and Email on Acid focus on rendering previews across dozens of email clients. Proofel focuses on the human review and approval step — collecting pixel-pinned feedback, tracking versions, and recording sign-offs — and includes a lighter set of pre-send checks (dark-mode simulation, link verification, Gmail-clipping cleanup).
- How is Proofel different from generic proofing tools like Filestage or Ziflow?
- General proofing platforms review many file types (video, PDF, images) with pinned comments and approvals. Proofel is purpose-built for HTML email: it renders the real email at desktop and mobile widths, models dark mode, checks every link, and fixes Gmail clipping — details a generic file proofer cannot see.
- Does Proofel send my email campaigns?
- No. Proofel is not an email service provider. It is the review and approval layer before the send; you export the approved email or send it from your existing ESP.
- Do reviewers need an account or a paid seat?
- No. Guest reviewers are unlimited on every plan and never need an account. Paid seats only apply to the people in your workspace who create and manage campaigns.
Try the email-specific review layer
Bring in a campaign and see pixel-pinned review, link checks, and approvals in one link.
14-day all-access trial · no credit card required · reviewers never need an account