Skip to content

Sendoff vs Rocketseed

A server-side signature platform for Microsoft 365 and Gmail that applies company signatures, targeted banners and click analytics at the mail-server level.

Last reviewed October 2026

Feature comparison

Free plan for one signature

Sendoff
Yes
Rocketseed
No

Build and copy without an account

Sendoff
Yes
Rocketseed
No

Copy HTML source on the free plan

Sendoff
Yes
Rocketseed
No

Google Workspace deployment

Sendoff
Yes
Rocketseed
Yes

Microsoft 365 / Outlook deployment

Sendoff
Partly
Rocketseed
Yes

Directory sync

Sendoff
Yes
Rocketseed
Yes

Scheduled signature banners

Sendoff
Yes
Rocketseed
Yes

Click analytics

Sendoff
Yes
Rocketseed
Yes

Server-side signatures (mail routed through the vendor)

Sendoff
No
Rocketseed
Yes
Sendoff price
Free for one signature. Solo $6/month billed yearly ($9 monthly). Team $2 per user per month billed yearly, minimum 5 users.
Rocketseed price
Tiered company pricing from 50 employees, billed monthly or yearly, plus a one-time setup fee; 14-day free trial

Product names are trademarks of their owners. Features and prices change; check each vendor’s website before deciding. Spotted an error? Tell us and we will correct it.

Arabic and right-to-left

Every Sendoff template is drawn for right-to-left as well as left-to-right: the layout mirrors, Arabic text keeps its letter joins and numbers stay readable.

Right-to-left (Arabic) templates

Sendoff
Yes
Rocketseed
Not published

Interface available in Arabic

Sendoff
Yes
Rocketseed
Not published

Example with fictional details

Where Sendoff differs

  • Sendoff is client-side only, so your mail never passes through us; Rocketseed applies signatures on the server.
  • Sendoff has a free plan and a no-account generator; Rocketseed’s published tiers start at 50 employees.
  • Sendoff’s Team plan starts at 5 users with prices on the pricing page. On Microsoft 365, its Outlook add-in works today; directory sync is coming soon.

When Rocketseed may suit you better

  • You need every message signed on any device, including phones, with no action from staff.
  • You want targeted banners by sender, recipient or department, with Google Analytics reporting and 24/7 support.

Is Rocketseed free?

We found no free plan for Rocketseed. Sendoff is free for one signature, and its generator works without an account.

How much does Rocketseed cost compared with Sendoff?

Rocketseed: Tiered company pricing from 50 employees, billed monthly or yearly, plus a one-time setup fee; 14-day free trial. Sendoff: Free for one signature. Solo $6/month billed yearly ($9 monthly). Team $2 per user per month billed yearly, minimum 5 users.

Does Rocketseed support Arabic and right-to-left signatures?

We could not confirm right-to-left support from Rocketseed’s public pages. Every Sendoff template mirrors for right-to-left, phone numbers stay in order, and the app is available in Arabic.

Can Rocketseed deploy signatures in Google Workspace?

Rocketseed supports Google Workspace. Sendoff deploys to Google Workspace, writing each signature into Gmail settings through the Gmail API. On Microsoft 365, an Outlook add-in inserts signatures as people write; directory sync with Microsoft 365 is coming soon.

Does Rocketseed route my email through its servers?

Rocketseed offers server-side signatures, so outgoing mail can pass through its service to have the signature added. Sendoff is client-side only: signatures are written into Gmail settings or installed in Outlook, and your mail never passes through Sendoff.

Try it without an account

Build a signature in the free generator, copy the HTML and see how it compares.

Make my signatureStart a 7-day team trial