Opensense vs Signature 365 (2026): which should you pick?

Pick Opensense if

• Fits if you're a large organization that wants IT-controlled signatures on Microsoft 365, Google Workspace or Exchange
• Works for US government contractors on Microsoft's GCC High cloud

Look elsewhere if

• Not for you if you're a small company: every plan has a $500 monthly minimum
• Watch out: every plan also needs a service plan whose price isn't on the pricing page
• Skip it if you want to try it without a sales call, as trials go only to accounts qualified through a demo
• Pricey if you want email tracking too, which is a separate line of plans from $20 to $65 a user a month
• Watch out: GCC High costs $2 more a user a month, and account and deal-stage targeting need Complete at $5

Pick Signature 365 if

• Fits if you run Microsoft 365 for 10 or more people
• Works for companies that want the same signature and campaign banner on all mail

Look elsewhere if

• Skip it if you use Google Workspace, since it targets Microsoft 365 only
• Not for you if you have fewer than 10 users, as the minimum is 10
• Watch out: licenses count every user and shared mailbox, signature or not
• Watch out: it is not covered by the 30-day money-back guarantee on Symprex's other software
• Watch out: cancelling ends the subscription at period end and the data is deleted

Opensense

• Every plan has a $500 monthly minimum, and Opensense says a small company is better served by a free generator.
• Plans also need a service plan whose price is not published on the pricing page.
• Email tracking is a separate line of plans from $20 to $65 per user a month, with the same $500 minimum.
• Trials are offered only to accounts Opensense qualifies, through a demo.

Signature 365

• It is built for Microsoft 365 and Office 365; the pages mention Exchange Server only as the target of a separate Symprex product.
• The minimum is 10 users, and licenses are counted for each user and shared mailbox whether or not a signature is added.
• Signature 365 is not covered by the 30-day money-back guarantee that Symprex states for its other software.
• Cancelling terminates the subscription at the end of the billing period, and Symprex deletes all related data when a subscription is terminated.

Opensense

Central deployment

Signatures are pushed by transport rule, Outlook add-in or both, with in-client previews, and work in Outlook, Gmail and Apple Mail on desktop and mobile.

Targeted banner campaigns

From Pipeline, schedule banners by department and A/B test them; Complete targets them by account, deal stage or individual recipient using CRM data.

Recipient-level insights

Reports deliveries, impressions and clicks on banners per recipient and per employee.

Directory, HR and SSO

Every plan syncs from Azure AD or Google Directory; Pipeline adds HR systems such as Workday and BambooHR and SSO through Okta, OneLogin, Ping or SAML.

GCC High support

Runs on Microsoft's GCC High cloud for regulated US federal organizations, for $2 more per user a month on any plan.

Onboarding included

Every plan includes a dedicated customer success manager, deployment help, 24/7 phone support and 5 custom signature templates a year.

Signature 365

Central dashboard

All signatures and campaigns for the company are created, managed and monitored from one dashboard, with a template library to start from.

Segmentation by department

Each department, or individual users, can be given different branding, information and calls to action.

Directory details

Contact details and headshots are pulled from the directory, with social links and banners added to every signature.

Campaigns and analytics

Banner campaigns and surveys can be added to signatures, with tracking of clicks, impressions and conversions plus reports.

Legal disclaimers

Signatures and disclaimers can be created and assigned so that outgoing mail carries required legal text.

Outlook add-in and mail routing

Signatures reach mail either through an Outlook add-in or through email routed via the Signature 365 service, and the vendor says recipients are not prompted to download images.

Opensense

• Signature$1

  per user / month, with a $500 monthly minimum

  For IT and branding: centrally deployed signatures on every device and client, reply and department signatures, directory sync. Plus a service plan.

• Pipeline$3

  per user / month, with a $500 monthly minimum

  Adds scheduled banner campaigns, banner A/B tests, recipient-level impressions and clicks, HR system sync and custom SSO. Plus a service plan.

• Complete$5

  per user / month, with a $500 monthly minimum

  Adds account, deal-stage and recipient targeting, and CRM, marketing automation and sales tool integrations. Plus a service plan.

• EnterpriseCustom

  A customized plan, quoted on request.

Signature 365

• Signature 365$7.52

  per month for 10 users, billed annually ($9.40 billed monthly)

  All features, priced by user count from 10 to 500 users. The page's calculator gives $816 a year for 100 users billed annually, or $85 a month billed monthly.

• Over 500 usersCustom

  Organizations above 500 users are asked to contact Symprex for pricing.

Opensense

No public discounts listed.

Signature 365

• Annual discount

  Save 20% with annual billing

  The pricing page labels yearly billing as saving 20% compared with monthly billing.