GMass vs Yesware
We give GMass a 2.4 GPA and Yesware a 2.2, out of 4.0. GMass grades higher on value for money. They get the same grade on the free plan, features, ease of use and platforms.
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
Yesware
Email tracking and outreach campaigns inside Gmail and Outlook
How we grade them
| 2.4GPAGMassFair | 2.2GPAYeswareFair | |
|---|---|---|
| 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. | CPro's 20 campaign recipients a month won't do for outreach, so five people need Premium: $35 a seat billed annually, $35 a head. That's just above the cheaper quarter's $32.50. Salesforce sync needs Enterprise at $65 a seat. |
| 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. | CThere's a free plan, but it tracks only emails sent in the last 24 hours and allows 10 campaign recipients a month. The 14-day trial needs no card. |
| 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. | CTracking of opens, links and attachments, templates, a scheduler, and campaigns mixing emails, call reminders and LinkedIn InMails that stop on a reply or booking. A smaller job than cold outreach at volume: it sends from your own mailbox, and full campaigns start at Premium. |
| 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. | BNo App Store rating on record, but it's an add-on to the Gmail or Outlook you already use, so tracking starts on your next email with nothing to build first. |
| 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. | CGmail in Chrome, or Outlook 2016 and later and Outlook on the web, and Yesware says there's no mobile app. Salesforce, Sales Navigator, Zoom, Teams, RingCentral and DocSend connect to it. |
| Best for | cold email without leaving Gmail | email tracking with simple campaigns on top |
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 Yesware. 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. Yesware starts at $15 a month for each person and scores 2.3.
They score the same, and Yesware starts $5 a month lower. Of the other cold outreach tools on the chart, none scores higher than GMass for less, and none scores higher than Yesware 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
- GMass starts at $20 per account / month, billed annually ($29.95 billed monthly). Yesware starts at $15 per seat / month, billed annually ($19 billed monthly).
- Yesware has a free plan. GMass does not, though it has a free trial.
- Only GMass lists a web app.
- Yesware also covers templates, booking links and reports.
At a glance
| GMass | Yesware | |
|---|---|---|
| Pricing | Free trial | Free plan |
| Starts at | $20 per account / month, billed annually ($29.95 billed monthly) | $15 per seat / month, billed annually ($19 billed monthly) |
| Free plan | None | Basic open and attachment tracking for emails sent in the last 24 hours, 10 campaign recipients a month, a meeting scheduler with 2 event types and email support. |
| Free trial | 7-day free trial limited to 50 emails per 24 hours, no credit card required | 14-day free trial, no credit card required |
| Web | ||
| Browser extension | ||
| Made by | GMass, Inc. | Yesware, Inc. (Vendasta) |
| Price read from | gmass.co | yesware.com |
| Checked | Oct 17, 2026 | Oct 17, 2026 |
Who each one suits
GMass
- People who want to send cold email without leaving Gmail
- Mail merges from a Google Sheet, including recurring sends
- Solo senders who need follow-ups but not a separate outreach app
Yesware
- Salespeople who want to know when an email is opened
- Teams split between Gmail and Outlook
- Salesforce teams that want email activity logged automatically
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.
Yesware
- Runs only inside Gmail with Chrome, or Outlook 2016 and later and Outlook on the web; Yesware says it has no mobile app.
- Pro allows only 20 campaign recipients a month; unlimited campaigns start at Premium, $35 per seat a month billed annually.
- Salesforce sync, the Salesforce sidebar and single sign-on are limited to Enterprise.
- Prospector contact data is an add-on: 600 credits a year for $37.50 a month billed annually. Cancelling gives no refund for unused time.
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.
Yesware
- Email and attachment tracking
- See opens, link clicks and attachment views for each email in an activity feed and sidebar. The free plan only tracks emails sent in the last 24 hours.
- Multi-touch campaigns
- Mix automated and manual emails, call reminders, LinkedIn InMails and custom touches on a set cadence, with recipients removed when they reply or book.
- Meeting scheduler
- Add booking links to emails from Google or Office 365 calendars, with event types, buffer times, pre-meeting questions and a Zoom link.
- Templates
- Unlimited personal templates with merge fields and attachments; Premium adds templates and campaigns shared across a team.
- Reports
- Activity, engagement, link click and template reports, with campaign-by-campaign and team reports on Premium and Enterprise.
- Salesforce integration
- Enterprise logs sent emails, replies and calendar events to Salesforce and adds Salesforce leads, contacts and list views to campaigns.
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.
Yesware
Free$0
Basic tracking of emails sent in the last 24 hours, 10 campaign recipients a month and a meeting scheduler.
Pro$15
per seat / month, billed annually ($19 billed monthly)
Unlimited open, link and attachment tracking, 20 campaign recipients a month, personal reports and phone support. Up to 5 users.
Premium$35
per seat / month, billed annually ($45 billed monthly)
Unlimited campaigns and recipients, shared templates and campaigns, unlimited teams, team reporting and no Yesware branding.
Enterprise$65
per seat / month, billed annually ($85 billed monthly)
Adds the Salesforce inbox sidebar, two-way activity, email and calendar sync, list view imports, Salesforce single sign-on and trusted IP ranges.
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.
Yesware
- Annual discount
Save up to 23% with annual billing
Yesware's pricing FAQ says annual billing saves up to 23%: Pro is $15 per seat a month billed annually against $19 billed monthly.
- Other savings
Credit for a contract you are leaving
Yesware says it will credit the remaining value of an unwanted contract with another vendor, shown by receipt, when you buy an annual plan; restrictions apply, through sales.
