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ToolGPA

GMass vs Mixmax

We give GMass a 2.4 GPA and Mixmax 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

Free trial · from $20/mo
Full detailsgmass.co

Mixmax

Email sequences, tracking and meeting booking inside Gmail

Free plan · from $29/mo
Full detailsmixmax.com

How we grade them

2.4GPAGMassFair2.2GPAMixmaxFair
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.
CFive reps each adding about 500 people a month pay $49 a user billed yearly, $49 a head. That's above the category's $40 middle and below the dearer quarter, and recipients can't be pooled across the team. Lighter users can sit at $29 for 100.
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 50 sequence recipients and 20 tracked emails a month, with a Mixmax signature, is a taste. The 14-day trial at 1,500 recipients 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.
CSequences of emails, calls, tasks and LinkedIn steps that stop on a reply or a booking, plus tracking, booking pages and CRM logging. A smaller job than cold outreach at volume, though: it sends from your one Gmail account, with recipients capped per member.
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 sits inside the Gmail you already use, signs in with Google and adds its buttons to the compose window. Little to set up before the first sequence.
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.
CIt runs inside Gmail through a Chrome extension, so it's computers only, with a web dashboard for reports. Salesforce, HubSpot, Slack, Zapier, Sales Navigator, Dialpad and Gong connect, and there's an API.
Best forcold email without leaving Gmailfollow-up sequences and booking inside Gmail

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 Mixmax. 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. Mixmax starts at $29 a month and scores 2.3.

They score the same, and GMass starts $9 a month lower. Of the other cold outreach tools on the chart, none scores higher than GMass for less, and 1 scores higher than Mixmax for less.

Features, ease of use and platforms, averaged

C2.0B3.0A4.0$10$20$50$100More for lessCosts more, scores moreCosts less, scores lessCosts more, scores lessGMassMixmax

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
The full chart of cold outreach tools, and the best at every price

Where they differ

  • GMass starts at $20 per account / month, billed annually ($29.95 billed monthly). Mixmax starts at $29 per user / month for 100 recipients, billed yearly ($34 monthly).
  • Mixmax has a free plan. GMass does not, though it has a free trial.
  • Mixmax also covers templates and booking links.
In commonWebBrowser extensionPublic APIAI featuresEmail campaigns

At a glance

GMassMixmax
PricingFree trialFree plan
Starts at$20 per account / month, billed annually ($29.95 billed monthly)$29 per user / month for 100 recipients, billed yearly ($34 monthly)
Free planNone50 sequence recipients and 20 tracked emails a month, templates, follow-up reminders and booking without round robin. Emails carry a Mixmax signature; no AI or CRM sync.
Free trial7-day free trial limited to 50 emails per 24 hours, no credit card required14-day free trial of every paid feature at 1,500 recipients, no credit card required
Web
Browser extension
Made byGMass, Inc.Mixmax, Inc.
Price read fromgmass.comixmax.com
CheckedOct 17, 2026Oct 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

Mixmax

  • Salespeople who work in Gmail and want follow-ups sent for them
  • Teams that book meetings straight from an email
  • Members with very different outreach volumes on one team

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.

Mixmax

  • Runs inside Gmail through a Chrome extension and signs in with Google; reports and settings sit in a web dashboard.
  • Recipients are bought per member and cannot be pooled or rolled over; a contact in two sequences counts twice.
  • Custom branding and domains, workspace-wide rules and Salesforce Insights cost $9 per member a month each billed yearly ($12 monthly).
  • The Dialer for calls and texts is $9 per member a month plus per-minute calling rates.

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.

Mixmax

Sequences from Gmail
Emails, calls, tasks and LinkedIn steps sent on a schedule from your Gmail account, in the same thread, stopping on a reply, a booking or a poll answer.
Email tracking
Opens, clicks and replies on every email you send, unlimited on paid plans, with a live feed of who is engaging.
One-click scheduling
Booking pages and available times placed inside an email, meeting reminders, round robin and booking for teammates on paid plans.
AI in the inbox
AI Compose, Smart Send, Signals and inbox categorization, plus an AI note taker for calls, on paid plans.
Run it from Claude or ChatGPT
Mixmax connects to Claude and ChatGPT, so sequences can be built and outreach checked by asking the AI assistant.
CRM sync and Sidechat
Sends and replies are logged to Salesforce or HubSpot automatically, and Sidechat lets teammates discuss an email inside Gmail.

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.

Mixmax

  • Free$0

    50 recipients and 20 tracked emails a month, live feed only, LinkedIn as the only integration, and a "Sent with Mixmax" signature.

  • 100 recipients$29

    per user / month for 100 recipients, billed yearly ($34 monthly)

    Every feature, priced by how many people each member adds to sequences a month. The 500-recipient step is $49 ($65 monthly).

  • 1,500 recipients$89

    per user / month for 1,500 recipients, billed yearly ($105 monthly)

    The same features with 1,500 sequence recipients a month per member; the 14-day trial runs at this level.

  • 3,000 recipients$129

    per user / month for 3,000 recipients, billed yearly ($159 monthly)

    3,000 recipients a month per member. The 5,000-recipient step is $159 ($195 monthly).

  • 15,000 recipients$229

    per user / month for 15,000 recipients, billed yearly ($279 monthly)

    The largest step shown, at 15,000 recipients a month per member. Larger teams are sent to sales.

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.

Mixmax

  • Annual discount

    Save 15% to 25% with yearly billing

    Mixmax's pricing FAQ says an annual plan, paid up front, costs 15% to 25% less than monthly depending on the tier: $29 against $34 at 100 recipients.

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