G Merge Plus vs YAMM

G Merge Plus creates personalized documents and email campaigns from Google Sheets. It can combine a sheet with a document template to generate PDFs, Google Docs, or Sheets, then send personalized messages from the user's Gmail address with generated documents attached. Merges can be queued for later or scheduled to recur. Delivery and open reports appear in the Sheet, and the marketing section also describes click tracking. Campaigns can include one-click unsubscribe; opt-outs are recorded in the Sheet and skipped on the next send. Reusable email and document templates are available, with shared templates listed for the Team plan. The workflow includes Gmail, Google Sheets, Google Docs, and Google Drive. G Merge Plus uses Google Sign In and says it does not access Gmail passwords. It says email and generated document contents are not stored, and generated files are kept in the user's Drive. The free plan has unlimited mail merge but no document merge or tracking, and is subject to Google limitations. Pro is $72 a year; Team is $480 a year.

YAMM is a mail merge tool for Gmail and Google Sheets, available on the web and as an extension. It sends personalized mass emails, with customization for subject lines, message content, links, images, attachments and CC/BCC fields. Its tracking covers opens, clicks, responses, bounces and unsubscribes in real time. Users can schedule mail merges and follow-up campaigns, and send personalized email notifications after Google Form submissions. YAMM supports CRM workflows including Salesforce and HubSpot. For HubSpot, it can import contacts into Google Sheets and log campaigns through a BCC address. The free plan allows 20 recipients per day for one user and includes best-effort support. Pro Gmail costs $25 a year for one user and allows 400 recipients per day; Pro Google Workspace costs $50 a year for one user and allows 1,500 per day for eligible accounts. Both Pro plans include priority support. YAMM says it does not store Gmail drafts, recipient addresses or spreadsheet content in its database, and does not sell personal data.