AdSigner vs gSignature

AdSigner centrally manages employee email signatures and can deploy them across an organization. It supports distinct branded signatures for departments, roles, regions, locations, or company brands. Campaign banners can carry offers, events, content, or company news in employee emails. Analytics tracks signature and campaign views, clicks, and click-through rates, with reports exportable to Excel, CSV, or JSON. Employee directory data can be synced from Microsoft Entra ID or Google Directory, supplied through JSON endpoints or custom API sources, or imported from Excel, CSV, or JSON files. Deployment options include Microsoft 365 and Outlook add-ins, Google Workspace and Gmail add-ons, AdSigner Agent for Outlook or Thunderbird, HTML copy-and-paste, and API-based deployment. AdSigner says it processes directory data and signature configuration to generate signatures without routing or accessing email content. Its security page states that it is GDPR compliant, offers a Data Processing Agreement, and has an SSL certificate. Administrators can enforce disclaimers and restrict compliance settings through role-based permissions. Standard support is included with subscriptions, with email or chat responses within 24 business hours. The platform lists API, extension, web, and Windows.

gSignature centrally manages and distributes organizational email signatures. Administrators can apply signatures across a domain or organizational units, and set a default signature for new employees. Employee details can be synchronized from supported email environments, imported by CSV, or edited by employees and administrators. HTML signatures can include links and banners, with more than 25 built-in employee variables or custom parameters. Administrators can update banners across employees and measure promoted campaign results in Google Analytics. For Google Workspace, the product retrieves employee data and updates Gmail signatures through the Gmail API; server-side mode can add signatures to outgoing messages, including mail sent from non-Gmail clients used with Google Workspace. Documented environments include Google Workspace, Microsoft 365, Outlook and Exchange Online, with CRM connections such as Pipedrive, Salesforce and HubSpot, and Zendesk support. Registration requires a Google Workspace administrator. The maker says customer data remains within Google Workspace and Google Cloud, with access limited to authorized administrators. gSignature has a free plan and a 14-day trial, and runs on web, Android, macOS, Windows and as an extension.