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Gmail and Outlook sales tool pricing (2026): 17 add-ons and inbox tools

Many reps never leave their inbox, so a large group of sales tools runs inside Gmail or Outlook: email trackers and mail merge add-ons, follow-up reminders, CRMs built into Gmail, sales engagement extensions and AI email assistants. Most are priced per user per month and many have a free tier, but the limits on tracked emails, recipients or AI usage differ a lot. This page lists the lowest published plan of every Gmail and Outlook sales tool we track, how it's charged, and the full plan list from each vendor's own pricing page.

Summary: 16 of 17 tools publish a monthly entry price, from $2.99/mo (Mailsuite (Mailtrack)) to $49/mo (Crystal, Fyxer AI and Streak); median $19/mo. 11 list a free plan. Prices verified against vendor pages, latest check .

How this page works: Sorted by lowest published entry price within each table; ties alphabetical. Add-ons that need another product (for example a Salesforce subscription) are marked under the tool name. The entry price is the lowest price the vendor publishes (often with annual billing), "How it's charged" is read from the vendor's plan list, and each row links to the pricing page we checked. No placement here is paid. Methodology.

Entry prices at a glance

Entry priceToolsWhich
Under $20/mo9Mailsuite (Mailtrack), Mailbutler, Boomerang, Mailmeteor, YAMM (Yet Another Mail Merge), Right Inbox, Superhuman, Gmelius, Yesware
$20–$49/mo7NetHunt CRM, Lavender, Mixmax, GMass, Crystal, Fyxer AI, Streak
$50–$99/mo0—
$100–$199/mo0—
$200/mo and up0—

Email tracking, mail merge and follow-up add-ons (7)

Track opens and clicks, send personalized mail merges from Gmail or Outlook, schedule sends and set follow-up reminders.

ToolEntry priceHow it's chargedPlan details (vendor-published)Free planFree trialVerified
Mailsuite (Mailtrack)
Gmail and Outlook extension
From $2.99/moPer user/seatFree Mailtrack (unlimited tracked emails with a promotional signature); Mailtrack $2.99/user/mo billed yearly ($35.88) or $6.99 monthly; Mailsuite $9.99/user/mo billed yearly ($119.90) or $19.99 monthly (campaigns up to 60,000 recipients/mo, PDF tracking)Yes—2026-11-06
Mailbutler
Add-in for Gmail, Outlook and Apple Mail
From $4/moPer user/seatPlans from $4, $7 and $11 per user/mo (prices shown in USD or EUR), adding templates, mail merge and AI follow-ups at each tier; 14-day free trial with all features, no cardNoYes2026-11-10
Boomerang
Add-on for Gmail
From $4.98/moPer planBasic free (10 message credits/mo); billed annually: Personal $4.98/mo, Pro $14.98/mo, Premium $49.98/mo; 30-day trialYesYes2026-11-12
Mailmeteor
Gmail and Google Sheets add-on
From $5.99/moPer user/seatFree (500 emails/mo); Starter $5.99, Premium $17.99, Pro $35.99 per user/mo as displayed; yearly billing advertised as 3 months freeYes—2026-11-13
YAMM (Yet Another Mail Merge)
Gmail and Google Sheets add-on
From $6/moPer planFree plan; Pro for @gmail.com accounts $6/mo ($72 billed annually); Pro for Google Workspace accounts $12/mo ($144 billed annually); prices vary by billing country and exclude taxesYes—2026-11-10
Right Inbox
Gmail extension
From $7.95/moPer user/seatFree (limited); Professional $9.95/mo monthly or $7.95/mo annual (per user); Team $19.95/mo monthly or $16.95/mo annualYes—2026-11-09
GMass
Gmail extension
From $29.95/moPer planBilled monthly: Standard $29.95/mo, Premium $39.95/mo, Enterprise $59.95/mo; paid annually: $249/yr, $349/yr and $599/yr (shown as $20, $29 and $49 per month); team plans from $175/mo——2026-11-10

Sales engagement and CRM inside the inbox (6)

Sequences, templates, scheduling and pipeline tracking without leaving Gmail or Outlook; billed per user.

ToolEntry priceHow it's chargedPlan details (vendor-published)Free planFree trialVerified
Cirrus Insight
Salesforce add-on: needs a Salesforce subscription
From $2.50/moPer capability per userBuild-your-own: 16 capabilities each priced per user/mo from $2.50 (Task Sync) to $125, e.g. Salesforce Sidebar $11, Calendar Sync $11, Email Sync $5; term discounts (the example quote showed 20% off, up to 40%)No—2026-11-11
Gmelius
Works inside Gmail and Google Workspace
From $19/moPer user/seatPer user/mo billed yearly: Meli $19 ($21 monthly), Growth $25 ($33 monthly), Pro $40 ($50 monthly); Enterprise custom; 7-day free trialNoYes2026-11-13
YeswareFrom $19/moPer user/seatFree; Pro $19/seat/mo; Premium $45; Enterprise $85YesYes2026-11-11
NetHunt CRMFrom $24/moPer user/seatPer user/mo: Basic $30 monthly ($24 annual), Basic Plus $42 ($34), Business $60 and Business Plus $84 billed monthly (annual on request); custom plans for 10+ users; 14-day free trial—Yes2026-11-06
MixmaxFrom $29/moPer user/seatFree (50 recipients/mo, follow-up reminders, 20 tracked emails); paid from $29/user/mo billed yearly (100 recipients/mo), higher volumes e.g. $89 and $129; monthly billing available; 14-day trialYesYes2026-11-12
StreakFrom $49/moPer user/seatPer user/mo billed annually: Pro $49, Pro+ $69, Enterprise $129 ($59/$89/$159 billed monthly); AI credits included per user (20 on Pro, 150 on Pro+), extra credit packs from $100/mo for 1,000; 14-day free trial—Yes2026-11-06

AI email assistants and writing coaches (4)

AI that drafts, triages or scores emails and suggests improvements; plans are per user or per plan with usage limits.

ToolEntry priceHow it's chargedPlan details (vendor-published)Free planFree trialVerified
SuperhumanFrom $12/moPer user/seatFree plan; Pro $12/member/mo billed annually ($15 monthly); Business $33/member/mo billed annually ($40 monthly), the tier that includes Superhuman Mail; Enterprise customYes—2026-11-06
Lavender
Email coach add-on for Gmail and Outlook
From $29/moPer planBasic free (5 emails analyzed/mo); Starter $29/mo monthly ($27 billed annually); Individual Pro $49/mo ($45 annual); Team $99/seat/mo ($89 annual); 7-day free trialYesYes2026-11-13
CrystalFrom $49/moPer planFree (assessments, no card); Premium $49/mo or $490/yr (also $49 per seat/mo for teams), including the Chrome extension with personality insights on LinkedIn profiles; Team Assessments from $500; Buyer Profiles customYes—2026-11-11
Fyxer AIFrom $49/moPer user/seatFree plan after the trial; Pro $49/person/mo monthly ($37 billed annually, up to 35% off); Team $99 monthly ($64 annually); 3,000 credits per paid member/mo (meeting minute 1 credit, chat 20); Enterprise via sales; 14-day free trial of TeamYesYes2026-11-10

Prices for these 17 Gmail and Outlook sales tools change often. Get verified pricing changes and new tools in one free weekly email.

FAQ

How much do Gmail and Outlook sales tools cost in 2026?

Across the 16 Gmail and Outlook sales tools on this page with a published monthly entry price, the lowest plans run from $2.99/mo (Mailsuite (Mailtrack)) to $49/mo (Crystal, Fyxer AI and Streak); the median entry price is $19/mo. 16 start under $50/mo and 0 at $100/mo or more. Entry prices are the lowest each vendor shows, often with annual billing; prices checked against vendor pages, latest Nov 13, 2026.

What is the cheapest Gmail and Outlook sales tool?

By lowest published entry price: Mailsuite (Mailtrack) from $2.99/mo, Mailbutler from $4/mo, Boomerang from $4.98/mo. Check what each entry plan includes in the table (users, accounts, emails or contacts), since the cheapest plan is often capped. Add-ons that run inside another product start lower: Cirrus Insight from $2.50/mo (Salesforce add-on: needs a Salesforce subscription).

Which Gmail and Outlook sales tools have a free plan?

Mailsuite (Mailtrack), Boomerang, Mailmeteor, YAMM (Yet Another Mail Merge), Right Inbox, Yesware, Mixmax, Superhuman, Lavender, Crystal and Fyxer AI list a free plan on their pricing pages; limits apply. 9 of the 17 tools list a free trial.

How are Gmail and Outlook sales tools priced?

Of the 17 tools on this page: 11 per user/seat, 5 per plan, 1 per capability per user. The 'How it's charged' column shows which applies to each tool, read from its pricing page.

What's the cheapest way to track emails in Gmail?

Several tools in the first table have a free plan for email tracking, usually with a promotional signature or a monthly limit, and paid plans start at a few dollars per user per month. See the free-plan sentence and the entry prices above for the exact list.

Is a Gmail add-on enough instead of a sales engagement platform?

For a small team sending one-to-one emails and simple sequences, often yes: the tools in the first two tables add tracking, templates, mail merge and follow-ups for much less than a full platform. Larger teams that need multichannel sequences, dialers and manager analytics usually move to a sales engagement platform; see our sales engagement pricing page.

Do these tools work with Outlook?

Some work in both Gmail and Outlook, others only in Gmail or Google Workspace. The note under each tool name says where it runs where the vendor states it; check the vendor page before buying for an Outlook team.

Related

Blank or "—" means the vendor did not publish it or we could not confirm it. Spotted an outdated price? Report it.

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