Mergeline vs Mailmeteor

Mergeline and Mailmeteor both offer free mail merge for Gmail: 60 emails a day against 50. Mailmeteor adds a web dashboard, Outlook support and open tracking, and stores recipient data for up to 180 days. Mergeline keeps lists in your browser and includes 7 follow-ups for $99 a year, against 5 on Mailmeteor Premium.

Updated October 29, 2026. Facts about other tools come from their own pages and public reviews, read on October 29, 2026 and listed under Sources. Mergeline is our product.

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How do Mergeline and Mailmeteor compare, feature by feature?

Mergeline vs Mailmeteor, checked October 29, 2026
	Mergeline	Mailmeteor
What it is	Chrome extension that sends through your own Gmail tab	Google Sheets add-on, Chrome extension and web dashboard, also for Outlook
Free plan	60 emails a day, no time limit, no branding added	50 emails a day¹
Monthly billing	Pro $12 a month	Not published
Yearly billing	Pro $99 a year (about $8.25 a month)	Starter $5.99, Premium $17.99, Professional $35.99 per user a month, billed yearly²
Daily sending	Free 60; Pro up to Gmail’s own daily limit	Free 50, Starter 250, Premium up to 1,000, Professional up to 2,000; gmail.com accounts capped at 500¹
Follow-ups	Up to 7 on Pro, in the same thread, stopping for anyone who replies	Premium (5 follow-ups) and Professional (10)²
Tracking pixels	None added: no tracking pixels and no link redirects	Email tracker on every plan, including free; custom tracking domain on Premium and up²
Where your data lives	In your browser. No Mergeline server receives your lists, emails or replies	Stores recipient addresses and merge fields for 180 days, events for 90 days, templates and contacts with no set limit³
Google permissions	No Google account permissions by default. Optional Google sign-in asks for gmail.send, plus gmail.readonly only if you turn on reply detection	Full Google Sheets access, sending on your behalf and an external Firebase service, with more for follow-ups³
Attachments	Yes, on Pro	Yes, templates can include attachments³
Scheduling	Yes, on Pro: start time and sending hours	Not published
A/B tests	Yes, on Pro: two subject lines	Not published
Google Sheets	Yes: paste a Sheets link. Pro adds new rows automatically	Yes, as a Google Sheets add-on

“Not published” means the vendor pages we read on October 29, 2026 did not state it. The feature or price may still exist, so check the vendor’s site.

What is the main difference between Mergeline and Mailmeteor?

Mailmeteor is a family of tools around one online account: a Google Sheets add-on, a Chrome extension, a web dashboard and an Outlook version². Your recipients, events and templates are stored in that account⁴.

Mergeline is one Chrome extension with no account. Everything it knows about your campaigns sits in your browser, and it sends through your Gmail tab. That makes it simpler and more private, but it also means no shared team dashboard and no Outlook.

How much do Mergeline and Mailmeteor cost per year?

Mailmeteor’s yearly prices per user are $5.99 a month for Starter ($71.88 a year), $17.99 for Premium ($215.88) and $35.99 for Professional ($431.88)². Monthly billing prices were not published on the pricing view we read.

Follow-ups start on Premium, with 5, and Professional has 10². Mergeline Pro includes up to 7 for $99 a year or $12 a month. If you never need follow-ups, Mailmeteor Starter is cheaper than Mergeline Pro.

Which one is more private?

Mailmeteor’s privacy documentation says it stores recipient email addresses and merge fields for 180 days, open, click and reply events for 90 days, and template content with attachments, plus contacts, with no set limit³. It asks for full Sheets access, sending on your behalf and an external Firebase service, with more scopes for follow-ups³.

Mergeline stores your lists, emails, results and do-not-email list in your browser’s extension storage. In its default mode it asks for no Google account permissions: it fills Gmail’s own compose window in your Gmail tab. If you choose Google sign-in instead, it asks for gmail.send, which Google classes as sensitive rather than restricted, and for gmail.readonly only if you turn on reply detection⁵. That data is used in your browser and never sent to a Mergeline server. The full breakdown is on our security page.

Which one should you choose?

Choose Mailmeteor if

You use Outlook as well as Gmail.
You want a web dashboard and a Sheets add-on.
You want open tracking and a custom tracking domain.
You want 10 follow-ups (Professional).
You want the cheapest paid plan without follow-ups.

Choose Mergeline if

You want your list to stay on your computer.
You want 7 follow-ups for $99 a year.
You want no tracking pixels in your emails.
You want 60 free emails a day.

Still deciding? See the best Mailmeteor alternatives, or compare every tool’s price on the mail merge pricing page.

Questions people ask

Is Mailmeteor or Mergeline better for privacy?

Mergeline stores lists, emails and results only in your browser. Mailmeteor stores recipient data for 180 days and events for 90 days on its side³.

Which has the bigger free plan?

Mergeline, with 60 emails a day. Mailmeteor’s free plan sends 50 a day¹.

How many follow-ups does each include?

Mergeline Pro includes up to 7. Mailmeteor Premium includes 5 and Professional 10².

Does Mailmeteor track opens on the free plan?

Yes. Its email tracker is included on every plan, including free². Mergeline adds no tracking on any plan.

Can I move my Mailmeteor sheet to Mergeline?

Yes. Paste the sheet’s link in Mergeline and each column becomes a merge tag.

Sources

Mailmeteor docs: email quotahttps://mailmeteor.com/docs/get-started/email-quota, checked October 29, 2026
Mailmeteor pricinghttps://mailmeteor.com/pricing, checked October 29, 2026
Mailmeteor docs: privacyhttps://mailmeteor.com/docs/help/privacy, checked October 29, 2026
Mailmeteor privacy policyhttps://mailmeteor.com/legal/privacy-policy, checked October 29, 2026
Gmail API: choose Gmail API scopeshttps://developers.google.com/workspace/gmail/api/auth/scopes, checked October 29, 2026

Try Mergeline free in Gmail

60 emails a day free, with no card and no branding. Pro is $12 a month or $99 a year, with up to 7 follow-ups that stop on reply.

Add to Chrome

Gmail is a trademark of Google LLC. Mailmeteor is a trademark of its owner. Mergeline is not affiliated with, endorsed by or sponsored by Google or any other company named on this page.