AutoSignature

Exclaimer vs Opensense pricing for 25 to 500 users

At 100 users Exclaimer Standard costs $1,740 a year and Opensense costs $6,000, because every Opensense plan carries a $500 a month minimum. The two only meet at large headcounts. Exclaimer Pro passes Opensense Signature at about 286 users and Standard at about 345. Below that, the cheaper tool is Exclaimer at every size. Here are the yearly totals at your headcount.

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Sample company

Blocks

Group	Mailboxes	Status

The short answer

Exclaimer is cheaper than Opensense up to about 286 users on Pro, 345 on Standard and 556 on Starter. Exclaimer bills $0.90, $1.45 or $1.75 per user a month on annual plans with a 10 user minimum. Opensense lists $1, $3 or $5 per user a month but holds every plan at $500 a month, plus a platform license it does not price. Opensense is built for marketing and sales teams that want campaign targeting. Exclaimer is the fair pick when the goal is one correct signature on every mailbox.

Where the $500 minimum bites

Each pair of bars is one company size on the plan most teams compare: Exclaimer Standard against Opensense Signature, the cheapest plan on each side. The Opensense bar does not move until it passes 500 users. The Exclaimer bar grows with every seat.

Yearly totals from each vendor's own price list, list price, no negotiated discounts. Opensense platform license not included.

Exclaimer StandardOpensense Signature

25 users

$435

$6,000
100 users

$1,740

$6,000
250 users

$4,350

$6,000
500 users

$8,700

$6,000

Per year, annual billing. Bar length is a share of $8,700, the Exclaimer Standard total at 500 users. At 25 users Exclaimer Standard is $435.

Exclaimer vs Opensense cost at five team sizes

Exclaimer prices every plan per user, so the total is the rate times headcount. Opensense charges the larger of users times rate or $500 a month. That is why the Opensense columns are flat at small sizes.

Yearly cost

Users	Exclaimer Starter	Exclaimer Standard	Exclaimer Pro	Opensense Signature	Opensense Pipeline	Opensense Complete
25	$270	$435	$525	$6,000	$6,000	$6,000
50	$540	$870	$1,050	$6,000	$6,000	$6,000
100	$1,080	$1,740	$2,100	$6,000	$6,000	$6,000
250	$2,700	$4,350	$5,250	$6,000	$9,000	$15,000
500	$5,400	$8,700	$10,500	$6,000	$18,000	$30,000

Exclaimer figures from exclaimer.com/pricing, $0.90, $1.45 and $1.75 per user a month on annual billing, read October 24, 2026. Opensense figures from opensense.com/pricing, $1, $3 and $5 per user a month with a $500 a month minimum and a platform license, read November 1, 2026. Exclaimer Enterprise and Opensense's GCC High surcharge of $2 per user are not included. Each vendor's own breakdown is in Exclaimer pricing and Opensense pricing.

Where the lines cross

Exclaimer plan	Passes Opensense Signature ($6,000) at	Passes Opensense Pipeline at
Starter, $10.80 a year	556 users	Never at its price, Pipeline is $36 a user
Standard, $17.40 a year	345 users	Never, Pipeline is $36 a user
Pro, $21 a year	286 users	Never, Pipeline is $36 a user

Read it plainly. Opensense Signature is the cheapest Opensense plan, and it is cheaper than Exclaimer Standard only from about 345 users. Pipeline, the plan with campaign scheduling that Exclaimer Pro competes with, costs $36 a user a year against $21, so Exclaimer Pro stays cheaper at every size.

Which is cheaper, Exclaimer or Opensense

Exclaimer, for almost every company under 300 people. A 100 person company pays $145 a month on Exclaimer Standard and $500 a month on Opensense, an effective $5 a user against $1.45. The gap does not close until headcount nearly triples. If you are weighing the two, the minimum is the single number to carry into the meeting.

The Opensense platform license is a second line item. Its pricing page says plans include "a $500/month minimum and a platform license" but publishes no amount for the license, so ask for it in writing before you compare quotes. Exclaimer lists no equivalent platform fee on its published plans, though Enterprise is quoted.

Commitment matters too. Exclaimer's published rates are for annual billing with a 10 user minimum and a 14 day free trial. Opensense sells through a booked demo, with several billing frequencies and purchase orders for enterprise buyers. Plan for a sales cycle of weeks, not an afternoon.

Whichever you choose, a $6,000 or $20,000 yearly contract needs a renewal date somebody owns. A SaaS management platform that tracks renewals and seat counts keeps a quiet auto renewal from turning into a surprise invoice.

IT manager comparing two software price quotes on a laptop and printed sheets at an office desk

Exclaimer vs Opensense features by plan

The tiers line up loosely. Exclaimer Starter and Opensense Signature are the one brand, one template tier. Standard and Pipeline add campaigns. Pro and Complete add analytics and CRM links. Our column is there for comparison.

	Exclaimer	Opensense	AutoSignature
Entry price	Starter $0.90 per user a month, annual	Signature $1 per user a month, $500 a month minimum	Team $49 a month billed yearly, up to 25 mailboxes
Campaign banners	Standard $1.45 with scheduling and targeting rules	Pipeline $3 with scheduled banners and A/B tests	Optional blocks in the signature template
Analytics and CRM	Pro $1.75 with dashboard, HubSpot and Salesforce	Complete $5 with stage and recipient targeting, Salesforce, HubSpot, Marketo	Not offered
Platforms	Microsoft 365 and Google Workspace	Microsoft 365 and Google Workspace	Microsoft 365 and Google Workspace
Directory sources	Entra ID and Google directory, HRIS on Pro	Azure AD and Google on every plan, HR systems like Workday and BambooHR	Microsoft 365 and Google Workspace directory fields
Support	Included, check hours with sales	US based support, 24x7 phone, dedicated account manager on every plan	Included on every plan
Security paperwork	SOC 2, ISO and HIPAA documents available	SOC 2 Type II stated	Ask support for details
Trial or demo	14 day free trial, no card	Book a demo	See pricing

When to pick Exclaimer and when to pick Opensense

Pick Exclaimer if

You have 10 to 300 people, price per seat decides it and you want a published rate you can put in a budget today. Standard covers departments, targeting rules and rotating banners without a platform fee.

Pick Opensense if

You have several hundred people, marketing runs signature banners as a real channel, and you want account or stage based targeting tied to your CRM, with a dedicated account manager.

When neither fits

You need one correct signature on every mailbox and a bill that does not follow headcount or start at $6,000. See the Exclaimer alternative page, or Office 365 email signature management.

Where AutoSignature sits next to both

We charge a flat band, so we are not the cheapest at the smallest sizes. Here are the yearly numbers.

Users	Exclaimer Standard	Opensense Signature	AutoSignature
25	$435	$6,000	$588 (Team)
100	$1,740	$6,000	$1,788 (Business)
250	$4,350	$6,000	$4,788 (Scale)
500	$8,700	$6,000	$4,788 (Scale)

Our Scale plan covers up to 600 mailboxes for $4,788 a year, which is $1,212 under Opensense Signature at 500 users and $3,912 under Exclaimer Standard. At 100 users Exclaimer Standard is $48 below our Business band. What you buy from us is the signature written to the mailbox, with no add-in and no relay, so it also appears on mail sent from phones. For the same math across more vendors, see email signature software cost per user.

See plans and limits

Exclaimer vs Opensense questions

Is Opensense more expensive than Exclaimer?

At 25 to 250 users, yes. Opensense charges at least $500 a month on every plan, which is $6,000 a year. Exclaimer Standard costs $1,740 at 100 users and $4,350 at 250. Opensense Signature only becomes cheaper than Exclaimer Standard above about 345 users, and cheaper than Exclaimer Pro above about 286. Opensense also adds a platform license on top, with no price published.

Does Opensense have a minimum compared with Exclaimer?

Yes. Opensense lists a $500 a month minimum plus a platform license on all three signature plans. Exclaimer has a minimum of 10 users instead, so the smallest Starter order is about $108 a year. A 25 person company pays $270 on Exclaimer Starter and $6,000 on Opensense Signature, before the platform license.

What is the difference between Opensense Pipeline and Exclaimer Pro?

Both aim at marketing teams. Opensense Pipeline is $3 per user a month and adds scheduled banner campaigns, A/B testing and account based targeting. Exclaimer Pro is $1.75 and adds advanced scheduling, an analytics dashboard, HubSpot and Salesforce connections and an audit log. Pipeline carries the $500 minimum, so below 167 users it costs $6,000 a year.

Which is better for a company under 200 people, Exclaimer or Opensense?

Exclaimer, on price. At 100 users the three Exclaimer plans cost $1,080, $1,740 and $2,100 a year against $6,000 for Opensense. Opensense suits larger companies where marketing and sales run targeted banner campaigns and want CRM stage data in the signature. For one correct signature on every mailbox, the minimum is hard to justify.

Do Exclaimer and Opensense both work with Microsoft 365 and Google Workspace?

Yes. Exclaimer lists Microsoft 365 and Google Workspace on all plans. Opensense works with Microsoft 365 or Google Workspace and lists Azure AD and Google directory integrations on every plan. Both are cloud services with a central editor. Check how each applies the signature to mail sent from phones before you pick.

One plan for Outlook and Gmail, with no minimum and no relay

See pricing

Team is $588 a year for up to 25 mailboxes, Business is $1,788 for up to 150 and Scale is $4,788 for up to 600, on yearly billing. Google Workspace and Microsoft 365 on every plan, signatures written to the mailbox.