HiHello Email Signature Manager vs Signature 365

HiHello Email Signature Manager centrally deploys and manages employee email signatures, promotional banners, and disclaimers. It applies signatures to Gmail and Outlook through Google Workspace and Microsoft 365 without requiring end users to set them up. Admins can assign templates by user, department, role, or region and manage layouts, banners, disclaimers, and fields. Marketing teams can schedule, rotate, and retire banners, then track impressions, clicks, and campaign performance with UTM support. Automated signatures are included in Business and Enterprise plans. HiHello lists directory sync and automatic updates, and says it syncs with Microsoft Entra ID, Google Workspace, Okta, and Workday, supports SCIM attribute mapping, and connects with apps through Zapier. The company says messages are signed inside Gmail or Outlook before sending, not routed through external servers, and private DKIM keys are not shared. Personal is free; Business is $5 a month, billed at $60 per user/year. Enterprise pricing is custom and not listed.

Signature 365 is a cloud-based service for managing email signatures, marketing campaigns and legal disclaimers for Microsoft 365 and Office 365. Its central dashboard lets organizations manage signatures and assign versions by department or individual. Templates can include branding, directory contact details, headshots, social links, banners, calls to action and disclaimers. Signatures can be deployed client-side, server-side or through both modes. Symprex says the service can add signatures to email sent from any client or device, with sent items updated, and that it does not access email content, including with server-side signatures. An Outlook add-in can be deployed through the Microsoft 365 admin center, and signatures can be added in Outlook on mobile devices. Campaign analytics track interactions and report on traffic, conversions and sales opportunities. The service supports directory sync and automatic updates. It is paid, with no free plan and a 14-day trial that requires no commitment or credit card. A license is assigned to each user or shared mailbox routed through the service and to each user using the Outlook add-in.