Best Sales Email Tracking Software in 2026
Updated
In short: Mailbutler Smart Assistant is ranked #1 of 27 as of 8 October 2026, ahead of Boomerang and Mixmax. The best-ranked option with a free plan is Boomerang. The lowest first paid tier on this page is Mailcastr at $0.42/mo.
When sales conversations happen over email, tracking can help you keep an eye on what happens after sending. Compared on open, click, reply and attachment tracking, these tools also differ in real-time alerts and CRM synchronization. Email client support matters if you need to stay within a particular inbox, while free-plan availability and paid-from pricing offer cost details to weigh. Mailbutler Smart Assistant, Boomerang and Mixmax are among the options shown. Think about which engagement signals are useful to your follow-up process, whether timely alerts matter, and how the tracking needs to work with your CRM and email client.
27 sales email tracking software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
27ranked
12free plans on this page
$0.42/molowest paid tier
8 Oct 2026last checked
Input list Sales Email Tracking Software 25 channels on this page · 131 of 200 spec lines stated by the makers
Ch Tool Free planPaid fromEmail client supportOpen trackingClick trackingReply trackingAttachment trackingReal-time alerts Spec sheet Score
01 Mailbutler Smart Assistant Free planYesPaid from4/user/moEmail client supportnot statedOpen trackingnot statedClick trackingnot statedReply trackingnot statedAttachment trackingnot statedReal-time alertsnot stated 2/8spec lines stated 8.3
02 Boomerang Free planYesPaid from4.98/user/moEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingYesAttachment trackingnot statedReal-time alertsYes 7/8spec lines stated 7.8
03 Mixmax Free planYesPaid from29/user/moEmail client supportnot statedOpen trackingnot statedClick trackingnot statedReply trackingnot statedAttachment trackingnot statedReal-time alertsnot stated 2/8spec lines stated 7.8
04 Yesware Free planYesPaid from15/user/moEmail client supportnot statedOpen trackingnot statedClick trackingnot statedReply trackingnot statedAttachment trackingnot statedReal-time alertsnot stated 2/8spec lines stated 7.6
05 Mailcastr Free planYesPaid fromnot statedEmail client supportgmailOpen trackingYesClick trackingYesReply trackingnot statedAttachment trackingnot statedReal-time alertsYes 5/8spec lines stated 7.5
06 RevenueGrid Free planNoPaid from30/user/moEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingYesAttachment trackingYesReal-time alertsYes 8/8spec lines stated 7.5
07 LeadBoxer Free planYesPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingnot statedAttachment trackingnot statedReal-time alertsYes 5/8spec lines stated 7.4
08 Pointofmail Free planNoPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingnot statedAttachment trackingYesReal-time alertsYes 6/8spec lines stated 7.4
09 Streak Free planYesPaid from49/user/moEmail client supportnot statedOpen trackingnot statedClick trackingnot statedReply trackingnot statedAttachment trackingnot statedReal-time alertsnot stated 2/8spec lines stated 7.4
10 Mailsuite Free planYesPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingYesAttachment trackingYesReal-time alertsYes 7/8spec lines stated 7.3
11 Outsolvi Free planNoPaid from7/user/moEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingYesAttachment trackingYesReal-time alertsYes 8/8spec lines stated 7.2
12 Right Inbox Free planYesPaid from7.95/user/moEmail client supportgmailOpen trackingYesClick trackingYesReply trackingYesAttachment trackingnot statedReal-time alertsYes 7/8spec lines stated 7.2
13 Trustifi Email Tracking Free planYesPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingnot statedAttachment trackingnot statedReal-time alertsYes 5/8spec lines stated 7.2
14 EmailCaddie Free planNoPaid fromnot statedEmail client supportoutlookOpen trackingYesClick trackingYesReply trackingYesAttachment trackingnot statedReal-time alertsYes 6/8spec lines stated 7.0
15 TrackMailBox Free planYesPaid fromnot statedEmail client supportgmailOpen trackingYesClick trackingYesReply trackingYesAttachment trackingnot statedReal-time alertsYes 6/8spec lines stated 6.9
16 FollowUp.cc Free planNoPaid from18/user/moEmail client supportgmailOpen trackingYesClick trackingYesReply trackingYesAttachment trackingYesReal-time alertsYes 8/8spec lines stated 6.7
17 Salesloft Free plannot statedPaid fromnot statedEmail client supportnot statedOpen trackingnot statedClick trackingnot statedReply trackingnot statedAttachment trackingnot statedReal-time alertsnot stated 0/8spec lines stated 6.7
18 WhoReadMe Free planYesPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingnot statedAttachment trackingYesReal-time alertsYes 6/8spec lines stated 6.7
19 Vocus.io Free planNoPaid from5/user/moEmail client supportgmailOpen trackingYesClick trackingYesReply trackingYesAttachment trackingNoReal-time alertsYes 8/8spec lines stated 6.6
20 Sellizer Free planNoPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingnot statedReply trackingYesAttachment trackingYesReal-time alertsYes 6/8spec lines stated 6.1
21 Email Tracker Free plannot statedPaid from6.9/user/moEmail client supportgmailOpen trackingYesClick trackingYesReply trackingYesAttachment trackingnot statedReal-time alertsYes 6/8spec lines stated 6.0
22 Mail Track for Gmail Free planYesPaid fromnot statedEmail client supportgmailOpen trackingYesClick trackingnot statedReply trackingnot statedAttachment trackingnot statedReal-time alertsYes 4/8spec lines stated 6.0
23 ReadNotify Free planNoPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingYesReply trackingnot statedAttachment trackingYesReal-time alertsYes 6/8spec lines stated 6.0
24 DidTheyReadIt Free planNoPaid fromnot statedEmail client supportgmail + outlookOpen trackingYesClick trackingnot statedReply trackingnot statedAttachment trackingYesReal-time alertsYes 5/8spec lines stated 5.8
25 MailTag Free plannot statedPaid fromnot statedEmail client supportgmailOpen trackingYesClick trackingYesReply trackingnot statedAttachment trackingnot statedReal-time alertsYes 4/8spec lines stated 5.8
Compare all 25 in a table
| # | Tool | Score | Free plan | From | Free plan | Paid from | Email client support | Open tracking |
|---|---|---|---|---|---|---|---|---|
| 1 | Mailbutler Smart Assistant | 8.3 | Free plan | $7/mo | Yes | 4 /user/mo | — | — |
| 2 | Boomerang | 7.8 | Free plan | $4.98/mo | Yes | 4.98 /user/mo | gmail_and_outlook | Yes |
| 3 | Mixmax | 7.8 | Free plan | $29/mo | Yes | 29 /user/mo | — | — |
| 4 | Yesware | 7.6 | Free plan | $19/mo | Yes | 15 /user/mo | — | — |
| 5 | Mailcastr | 7.5 | Free plan | $0.42/mo | Yes | — | gmail | Yes |
| 6 | RevenueGrid | 7.5 | No | $30/mo | No | 30 /user/mo | gmail_and_outlook | Yes |
| 7 | LeadBoxer | 7.4 | Free plan | €8.25/mo | Yes | — | gmail_and_outlook | Yes |
| 8 | Pointofmail | 7.4 | No | $1.17/mo | No | — | gmail_and_outlook | Yes |
| 9 | Streak | 7.4 | Free plan | $59/mo | Yes | 49 /user/mo | — | — |
| 10 | Mailsuite | 7.3 | Free plan | $6.99/mo | Yes | — | gmail_and_outlook | Yes |
| 11 | Outsolvi | 7.2 | No | $7/mo | No | 7 /user/mo | gmail_and_outlook | Yes |
| 12 | Right Inbox | 7.2 | Free plan | $7.95/mo | Yes | 7.95 /user/mo | gmail | Yes |
| 13 | Trustifi Email Tracking | 7.2 | Free plan | Free | Yes | — | gmail_and_outlook | Yes |
| 14 | EmailCaddie | 7.0 | No | $10/mo | No | — | outlook | Yes |
| 15 | TrackMailBox | 6.9 | Free plan | Free | Yes | — | gmail | Yes |
| 16 | FollowUp.cc | 6.7 | No | $18/mo | No | 18 /user/mo | gmail | Yes |
| 17 | Salesloft | 6.7 | No | — | — | — | — | — |
| 18 | WhoReadMe | 6.7 | Free plan | Free | Yes | — | gmail_and_outlook | Yes |
| 19 | Vocus.io | 6.6 | No | $5/mo | No | 5 /user/mo | gmail | Yes |
| 20 | Sellizer | 6.1 | No | — | No | — | gmail_and_outlook | Yes |
| 21 | Email Tracker | 6.0 | No | — | — | 6.9 /user/mo | gmail | Yes |
| 22 | Mail Track for Gmail | 6.0 | No | — | Yes | — | gmail | Yes |
| 23 | ReadNotify | 6.0 | No | — | No | — | gmail_and_outlook | Yes |
| 24 | DidTheyReadIt | 5.8 | No | — | No | — | gmail_and_outlook | Yes |
| 25 | MailTag | 5.8 | No | — | — | — | gmail | Yes |
Is your tool on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which sales email tracking software is ranked first on Specifiction?
Mailbutler Smart Assistant is ranked #1 of 27 with a score of 8.3. Boomerang is second and Mixmax third.
How many of these have a free plan?
12 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Mailcastr has the lowest first paid tier we found: $0.42/mo.
How is this list ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.
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