GMass vs Yet Another Mail Merge (2026): which should you pick?
As of Nov 12, 2026, Yet Another Mail Merge grades higher than GMass: 2.6 against 2.4 out of 4.0.
Checked Oct 17, 2026 and Nov 12, 2026 · graded Oct 17, 2026 and Nov 12, 2026 by ToolGPA
GMass grades higher on ease of use. Yet Another Mail Merge grades higher on value for money and platforms. They get the same grade on the free plan and features.
Price, platforms and features side by side. The table says where each price was read and when.
GMass
Mail merge and cold email campaigns sent from inside Gmail
Yet Another Mail Merge
Mail merge that sends from Gmail using a Google Sheets list
Which one is for you
Pick GMass if
- Fits if you already send from Gmail and your list lives in a Google Sheet
- Works for solo senders who want follow-ups without another app, from $29 a month on Premium billed annually
Look elsewhere if
- Not for you if you use Outlook or another mail service, as it needs Gmail or Google Workspace and Chrome
- Skip it if you want LinkedIn steps, which GMass doesn't do
- Tight if you're on Standard at $20 a month, which has no automatic follow-ups
- Pricey if you send from several inboxes, as each Gmail account is its own subscription and rotation needs Professional
- Watch out: Gmail's own daily sending limits still apply, and GMass's SMTP service costs $5 per 10,000 messages
Pick Yet Another Mail Merge if
- Fits if your mailing list already lives in a Google Sheet and you send from Gmail
- Works for one person sending a few hundred personal emails a day
Look elsewhere if
- Skip it if you use Outlook or any non-Google mailbox, because there is no support for one
- Tight if you stay on the free plan: 20 recipients a day and no scheduling
- Watch out: daily volume is Google's cap, 400 recipients on @gmail.com and 1,500 on Workspace, and each account needs its own license
- Watch out: Pro is billed once a year with no prorated refunds and none after 90 days
How we grade them
| 2.4GPAGMassFair | 2.6GPAYet Another Mail MergeGood | |
|---|---|---|
| Value for money | BFive people on the Team plan pay $145 a month billed annually for every feature, $29 a head, or $175 billed monthly. That's inside the cheaper quarter's $32.50. A solo sender who wants follow-ups needs Premium at $29 an account billed annually. | APro is $6 a month billed yearly for an @gmail.com account and $12 for a Workspace account, both under 60% of the $25 cheaper quarter of cold outreach tools. |
| Free plan and trial | CNo free plan. The 7-day trial needs no card but is capped at 50 emails a day, enough to check it works in your Gmail. | CA free plan for up to 20 recipients a day with tracking and follow-ups, but no scheduling. You will hit 20 a day quickly. |
| Features | CThe email job done fully from Gmail: unlimited emails and contacts, mail merge from Sheets, follow-ups that stop on a reply, A/B tests, inbox rotation and SMTP for big sends. It's a smaller job, though: no LinkedIn steps, and Standard has no follow-ups. | CGmail drafts as templates, tracking in the sheet, follow-ups, scheduling and attachments. It does the mail-merge job fully, which is a smaller job than a full outreach platform. |
| Ease of use | BNo App Store rating on record, but it lives inside the Gmail you already use: write an email, pick a list or a Sheet and press the GMass button. Very little to learn. | CNo store rating on record. You set up a Google Sheet, connect the add-on and write a draft, which is simple but still setup. |
| Platforms and integrations | CIt needs Gmail or Google Workspace and the Chrome browser, so it's a computer-only tool. Google Sheets and Zapier connect, and there's an API from Premium. | BWeb only inside Gmail and Sheets, with Google Contacts, Forms, Salesforce and HubSpot connections. |
| Best for | cold email without leaving Gmail | mail merge from Gmail and Google Sheets |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: GMass and Yet Another Mail Merge. How we grade
Price against what you get
GMass starts at $20 a month and scores 2.3 out of 4 on features, ease of use and platforms. Yet Another Mail Merge starts at $6 a month and scores 2.3.
They score the same, and Yet Another Mail Merge starts $14 a month lower. Of the other cold outreach tools on the chart, none scores higher than GMass for less, and none scores higher than Yet Another Mail Merge for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Yet Another Mail Merge also covers templates, spreadsheets and reports.
At a glance
| GMass | Yet Another Mail Merge | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $20 per account / month, billed annually ($29.95 billed monthly) | $6 per month, billed annually at $72 (Pro with a @gmail.com account, US billing) |
| Free plan | None | Up to 20 recipients a day, one user, with tracking and follow-ups but no scheduling. |
| Free trial | 7-day free trial limited to 50 emails per 24 hours, no credit card required | None listed |
| Web | ||
| Browser extension | ||
| Made by | GMass, Inc. | Talarian |
| Price read from | gmass.co | yamm.com |
| Checked | Oct 17, 2026 | Nov 12, 2026 |
Worth knowing
GMass
- Needs a Gmail or Google Workspace account and the Chrome browser; campaigns are written and sent from inside Gmail.
- Each subscription covers one Gmail account, and the Standard plan has no automatic follow-ups.
- Inbox rotation needs Professional or a Team plan; sending through GMass's own SMTP service costs $5 per 10,000 messages.
- Gmail's own daily sending limits still apply to anything sent through the Gmail account itself.
Yet Another Mail Merge
- It works only with Gmail and Google Workspace accounts, inside Google Sheets; there is no Outlook or other mailbox support.
- Daily volume is set by Google's sending limits: 400 recipients a day on @gmail.com and 1,500 on a Workspace account, so large lists need several accounts.
- Each license covers one Google account; every additional account needs its own.
- Pro is billed once a year, with no prorated refunds and no refunds on subscriptions older than 90 days.
Key features
GMass
- Campaigns from the Gmail compose window
- Write a campaign as an ordinary Gmail message, address it to a list, label or Google Sheet, and send it with the GMass button from your own account.
- Automatic follow-ups
- Unlimited follow-up stages that stop when a contact replies, clicks or opens, sent in the same thread or as new ones. Needs Premium or above.
- Google Sheets campaigns
- Merge fields come from a Google Sheet, GMass picks up edits made before a scheduled send, and new rows can be emailed automatically.
- Inbox rotation and SMTP
- MultiSend spreads one campaign across several mailboxes on Professional and Team, and an SMTP server can carry sends larger than Gmail allows.
- Reports in Gmail, the dashboard and the web
- Opens, clicks, replies, bounces and blocks arrive as Gmail reports, in the dashboard and as shareable web reports, with an AI Deep Analysis of the results.
- AI writing and SpinMax
- AI can draft a full campaign with its follow-ups, and SpinMax varies the wording of every email in a campaign automatically.
Yet Another Mail Merge
- Gmail drafts as templates
- The message is written as a Gmail draft, with merge markers that match the column names in the Google Sheet.
- Tracking in the sheet
- Opens, clicks, replies, bounces and unsubscribes are tracked and shown in the spreadsheet next to each recipient.
- Follow-ups
- Follow-up campaigns can be sent in bulk, filtered by who has or has not responded, and in the same Gmail thread.
- Scheduling
- A merge can be scheduled for later. Scheduling is on the paid plans only.
- Personalized attachments
- Each recipient can get their own attachment, along with personalized links, images, CC and BCC addresses.
- Over-quota splitting
- When a list exceeds the daily quota, the merge is split over several days automatically.
Plans
GMass
Standard$20
per account / month, billed annually ($29.95 billed monthly)
Unlimited emails, contacts and campaigns, mail merge, email verification and Spam Solver. No automatic follow-ups. $249 a year.
Premium$29
per account / month, billed annually ($39.95 billed monthly)
Adds sequences and automatic follow-ups, A/B testing, triggered emails, and the API and Zapier. $349 a year.
Professional$49
per account / month, billed annually ($59.95 billed monthly)
Adds inbox rotation across several sending accounts (MultiSend) and high-priority support. $599 a year.
Team$145
per month for up to 5 users, billed annually ($175 billed monthly)
Every feature, including inbox rotation, for 5 Gmail accounts. Packs of 10, 25, 50 and 100 users cost less per user.
Yet Another Mail Merge
Free$0
Up to 20 recipients a day on a @gmail.com or Workspace account, with open, click and response tracking and follow-ups. Scheduling is not included.
Pro gmail.com$6
per month, billed annually at $72, for one @gmail.com account
Up to 400 recipients a day, plus scheduling. The page shows this price for billing countries such as the US, UK, Canada and Australia; other countries pay $3.
Pro Google Workspace$12
per month, billed annually at $144, for one Workspace account
Up to 1,500 recipients a day for one Google Workspace account, plus scheduling. The Team plan uses the same per-user price and covers up to 100 users.
UnlimitedCustom
Quoted on request for more than 100 users.
Ways to pay less
GMass
- Annual discount
Save up to 31% with annual billing
Standard costs $249 a year against $29.95 a month billed monthly, a saving of about 31%; Premium saves about 27% and Professional about 17%.
- Education
15% off for .edu Google Workspace accounts
GMass's pricing FAQ says Google Workspace users on a .edu domain get 15% off the published prices, applied automatically after subscribing.
- Nonprofit
15% off for .org Google Workspace accounts
The same 15% discount applies automatically to Google Workspace accounts on a .org domain; nonprofits on other domains do not get it.
Yet Another Mail Merge
- Education
Discounts for schools and non-profits
Schools, universities and non-profits with 25 or more users can contact sales for a discount.
Common questions
Which is cheaper, GMass or Yet Another Mail Merge?
As of Nov 12, 2026, Yet Another Mail Merge is cheaper to start with: $6 a month, against $20 a month for GMass. GMass starts at $20 per account / month, billed annually ($29.95 billed monthly), and Yet Another Mail Merge starts at $6 per month, billed annually at $72 (Pro with a @gmail.com account, US billing).
Which has a free plan, GMass or Yet Another Mail Merge?
As of Nov 12, 2026, only Yet Another Mail Merge has a free plan. GMass does not, though it has a free trial.
Which platforms do GMass and Yet Another Mail Merge run on?
As of Nov 12, 2026, only GMass lists a browser extension. Both list a web app. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.