Ranked List6 tools comparedUpdated May 24, 2026

Best Free Email Tracking in 2026

"Free email tracking" can mean three different things in 2026: a genuinely free product tier (Mailtrack, HubSpot, Streak, Boomerang), a free trial of a paid product (Outsolvi), or a free tier that stamps a watermark on your emails (Mailbutler Starter). The right choice depends on whether you want free for personal-use tracking or free for serious team evaluation.

This ranking covers six free options and the trade-offs each forces. The honest answer is that no truly free tier offers what most B2B teams need; the cleanest path to evaluating tracking properly is a free trial without a credit card.

TL;DR

For serious evaluation, Outsolvi's free trial (14 days, up to 250 tracked emails, one seat, no credit card, with graded opens, AI-written follow-ups and Outlook + Gmail) is the cleanest free path. For long-term free personal-use tracking, Mailtrack Free works but adds "Sent with Mailtrack" to every outgoing email. HubSpot Sales free is capped at 5 tracked sends per day. Streak free covers personal pipelines. Boomerang and Mailbutler free tiers cover scheduling and Apple Mail respectively.

How we ranked these tools

Each option was evaluated on what the free tier actually includes (40%), what trade-offs the free tier forces (branding, sending caps, feature gates) (25%), whether the free tier supports B2B sales use cases (20%), and whether the path to paid is reasonable (15%). "Best for" identifies which buyer profile the free option genuinely serves.

We make Outsolvi, and it's on this list. Every tool here, ours included, was scored on the criteria above, so weigh the ranking knowing who wrote it.

At a glance

Rank	Tool	Starting price	Best for
#1	Outsolvi (14-day free trial)	Free for 14 days or 250 tracked emails	Teams doing serious evaluation against real send volume before committing.
#2	Mailtrack (Mailsuite) Free	Free with footer	Single users doing personal tracking who do not mind the footer.
#3	HubSpot Sales Hub Free	Free (capped)	Teams already on HubSpot CRM Free who want light tracking inside that ecosystem.
#4	Streak Free	Free for personal	Solo users running personal pipelines (founder tracking investors, recruiter tracking candidates).
#5	Boomerang Free	Free (capped)	Personal scheduling users (send-later, snooze) who want occasional open tracking.
#6	Mailbutler Starter	Starter free (watermark)	Apple Mail users who want a low-cost entry into the Mailbutler bundle.

Click any tool to jump to the full breakdown below.

Outsolvi (14-day free trial)

Free for 14 days or 250 tracked emails, no credit card required.

Best for

Teams doing serious evaluation against real send volume before committing.

Pros

Graded opens, hot-lead flags, reply labels, AI-written follow-ups and Outlook + Gmail during the trial (one seat, no custom tracking domain or LinkedIn)
No credit card required to start
No "Sent with Outsolvi" footer or branding on emails you send yourself from Outlook or Gmail
Easy cancel; no surprise charges after the trial ends

Cons

•Time-limited (14 days or 250 tracked emails, whichever comes first)
•Requires a paid plan ($7/user/mo yearly or $12/mo monthly) after the trial to continue
•Follow-ups Outsolvi sends for you during the trial carry a small "Sent with Outsolvi" footer

Pricing

Free for 14 days or 250 tracked emails. After: $7/user/mo yearly or $12/mo monthly.

Verdict

The cleanest free-evaluation path in the category. The closest thing to "free for serious evaluation": 250 tracked emails over 14 days, without branding on the emails you send yourself.

Start your Outsolvi trial

Mailtrack (Mailsuite) Free

Truly free unlimited Gmail tracking, with a "Sent with Mailtrack" footer on every email.

Full comparison

Best for

Single users doing personal tracking who do not mind the footer.

Pros

Unlimited tracking on the free tier
Two-checkmark visual familiar from WhatsApp
Fast install, no credit card

Cons

•Adds "Sent with Mailtrack" to every outgoing email (B2B credibility problem)
•Outlook add-in tracks opens only, on paid tiers too
•Raw pixel-load tracking; no confidence scoring or AI features
•Upgrade to remove footer is $4.99/user/mo yearly (still no AI or Outlook)

Pricing

Free with footer. Pro $4.99/user/mo yearly to remove.

Verdict

Works for personal tracking where the footer is acceptable. Not viable for B2B sales outreach because the footer signals "using a free tracker" on every first impression.

HubSpot Sales Hub Free

Free CRM with email tracking capped at 5 sends per day on the free tier.

Full comparison

Best for

Teams already on HubSpot CRM Free who want light tracking inside that ecosystem.

Pros

Integrates natively with HubSpot CRM Free
Native Outlook add-in plus Gmail Chrome extension
Activity logging into HubSpot contact records

Cons

•Capped at 5 tracked email sends per day on the free tier
•Sequences and advanced tracking gated to Professional at $90/user/mo yearly ($100 monthly)
•No confidence scoring exposed at any tier

Pricing

Free (capped). Starter $20/user/mo. Professional $90 yearly ($100 monthly).

Verdict

Useful for HubSpot CRM users who want light tracking on the side. The 5-sends-per-day cap makes it unusable for daily AE work.

Streak Free

Free personal pipeline tracking inside Gmail, with light tracking bundled.

Full comparison

Best for

Solo users running personal pipelines (founder tracking investors, recruiter tracking candidates).

Pros

Genuinely usable for personal-use pipeline tracking
Pipelines, contact records, basic tracking inside Gmail
No card required for free tier

Cons

•Gmail-only; no Outlook at any tier
•Team and advanced features gated to paid tiers ($49 to $129/user/mo yearly)
•Reads full email content (procurement-review friction even on free)
•Raw pixel-load tracking; no confidence scoring

Pricing

Free for personal. Pro $49/user/mo yearly ($59 monthly). Pro+ $69.

Verdict

Works for solo pipeline-tracking use cases. Not a B2B team tracking tool because the team features are paid and the architecture is Gmail-only.

Boomerang Free

Free scheduling and snooze with light tracking on the side, capped sends per month.

Full comparison

Best for

Personal scheduling users (send-later, snooze) who want occasional open tracking.

Pros

Best-in-class scheduling and snooze on the free tier
Works on Gmail and Outlook (the Outlook add-in is lighter)
Respondable AI writing feedback included

Cons

•Free tier caps tracked sends per month
•Tracking is a side feature, not the focus
•No confidence scoring; raw pixel-load opens
•On Gmail, team analytics are gated to Premium at $49.98/user/mo

Pricing

Free (capped). Gmail: Personal $4.98/mo, Pro $14.98, Premium $49.98/user/mo. Outlook: Personal $4.99/mo, Pro $14.99/mo, billed annually.

Verdict

Right pick for scheduling-first personal users who want light tracking. For tracking-first work, the free cap makes it unusable.

Mailbutler Starter

Free Starter tier with a Mailbutler watermark; paid plans start at $7/user/mo yearly.

Full comparison

Best for

Apple Mail users who want a low-cost entry into the Mailbutler bundle.

Pros

One of the few options covering Apple Mail
Cross-platform: Apple Mail, Gmail, and Outlook
Templates, signatures, basic tracking

Cons

•Free Starter adds a watermark; Professional at $7/user/mo yearly is the first paid tier
•Tracking analytics live in the Smart tier ($11) and above
•Outlook add-in is lighter than Apple Mail and Gmail versions

Pricing

Starter free (watermark). Professional $7/user/mo yearly. Smart $11. Business $24.

Verdict

Cheap entry option for Apple Mail users, but the free tier carries a watermark. The full tracking experience is at Smart and above, which puts it in the same price band as Outsolvi without Outsolvi's open grading.

Frequently asked questions

Is there a truly free email tracking tool with no limits?+

Mailtrack Free is the closest, with unlimited tracking on Gmail, but it adds "Sent with Mailtrack" to every outgoing email. For B2B sales outreach this is a credibility issue. The cleaner path to evaluating tracking without paying is Outsolvi's free trial (14 days, up to 250 tracked emails, one seat, no credit card), with graded opens and Outlook + Gmail add-ins and no branding on the emails you send yourself.

Why does Mailtrack add a footer to free-tier emails?+

It is a referral mechanism. Every outgoing email tells the recipient that the sender is using the free version of a tracking tool. For personal use this is fine; for B2B sales outreach it signals "free version of a tracker" on the first impression of every cold email. The $4.99/user/mo yearly Pro tier removes it.

Does Outsolvi require a credit card for the trial?+

No. The free trial (14 days or 250 tracked emails, whichever comes first) needs only an email address to start. There is no card capture upfront, no automatic charge at the end of the trial; the trial expires and the account drops to read-only unless a paid plan is activated.

What is the catch with free tiers?+

Each free tier forces a different trade-off. Mailtrack: branding on outgoing emails. HubSpot Sales: 5-send daily cap. Streak: Gmail-only, reads email content. Boomerang: monthly tracking cap. Mailbutler Starter: watermark on outgoing emails. For serious B2B team evaluation, none of the truly-free tiers is enough; the cleanest path is a time-limited free trial of a paid product (Outsolvi: 14 days or 250 tracked emails).

Can I evaluate a paid tool free?+

Yes. Most paid trackers offer 7-14 day trials, with varying terms. The cleanest are credit-card-free trials of the real product (Outsolvi). Trials that require a card upfront (Yesware, Mixmax) bet on inertia to convert; trials with feature-limited preview do not let you test the full experience. Pick a trial that gives you enough time and volume to test on real email, the features you'd actually pay for, and no card.

What should I look for in a free tier vs a free trial?+

Free tiers work for long-term low-volume personal use. Free trials work for serious team evaluation against real pipeline. The choice depends on what you are trying to learn: if it is "does this tool track emails," free tier is fine; if it is "will this tool change my team's daily workflow," you need two weeks on real email with the features you'd actually pay for, and no card.

Ready to try the #1 pick?

Outsolvi's 14-day free trial is the cleanest free-evaluation path in the category. No credit card, no branding on the emails you send yourself, 250 tracked emails over 14 days with graded opens and AI-written follow-ups. Two weeks of dual-running against your current tool is the cleanest way to compare on real data.

Start 14-Day Free Trial

No credit card required • Cancel anytime

Free 14-day trial

Skip the shortlist and test the top pick.

14 days free, no credit card, and it works in Outlook and Gmail from the first send.

2-minute setupNo credit cardFrom $7/mo yearly · $12/mo monthly

Start free trial See pricing

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Ranked list

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Feature

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Reads the start of each reply to a tracked email, matches it against keyword rules and shows a label on the email's page in Outsolvi and in the follow-up queue.

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Workflow

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Built for

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Free tool

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Glossary

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Nate SummersCo-Founder, Outsolvi

Nate built Outsolvi after watching every email-tracking tool he had ever used lie to him about opens. Outsolvi grades every open as a person or a machine, in Outlook and Gmail, so the number on the dashboard is one a rep can actually act on.

Last reviewed May 24, 2026Editorially independent

We update these pages when the underlying mechanics change. new mailbox-provider rules, new tracker behavior, new measurement gaps. The dates above are real revisions, not auto-touches.

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