Dynasend vs HiHello Email Signature Manager

Dynasend centrally designs and manages standardized email signatures for Microsoft 365 users and devices. Administrators deploy and update signatures across a tenant through its O365 add-in, without requiring end-user desktop installs. It can create a design or convert an existing one, with variants for new messages, replies, and streamlined messages. Entra ID (Azure AD) sync aligns signature fields with directory attributes, while SCIM provisioning supports user lifecycle management. Multiple templates and unlimited user data fields can serve different brands and divisions. Campaigns can schedule banners, notes, relocation messages, and role-based groups; the platform also offers feedback surveys and digital business cards for iOS and Android. Dynasend says signatures render in Outlook at compose time, data is encrypted in transit and at rest, and it does not access email content or stamp messages in transit. Standard costs $50 a month for up to 50 signatures; above that, monthly per-active-signature pricing varies by volume from 1.00 USD (51–100) to 0.20 USD (18,001+). A 90-day free trial is available.

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.