Growth · alternatives · 2026

24 alternatives to SeenBase

See who opened your email, PDF, CV or proposal

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Unlimited Email Tracker▲496

   Track opens and clicks, set reminders and delays in Gmail

   2019 · snov.io · its alternatives →

2. 2
   Clearbit Connect▲723

   Rapportive on steroids. See data about contacts in Gmail.

   2016 · clearbit.com · its alternatives →

3. 3
   Email Open Tracker for GMAIL▲126

   Keep an eye on your email opens

   2024 · its alternatives →

4. 4
   ShareDocView▲125

   Share docs with links to get analytics and email leads

   2021 · sharedocview.com · its alternatives →

5. 5
   Papermark▲794

   Papermark is a secure data room platform for dealmakers, founders, and finance teams. It lets you organize documents, set granular permissions, add NDA gating and watermarking, and track page-level analytics to see what drives decisions. Teams use it for M&A, fundraising, due

   2023 · papermark.com · its alternatives →

6. 6
   Mailtrack.io▲282

   The best email tracking solution I've found. Free

   2014 · mailsuite.com · its alternatives →

7. 7
   Doubletick for Gmail▲120

   Track email opens, know which emails are opened by recipient

   2021 · its alternatives →

8. 8
   Mentioned▲462

   Get an email when your website is posted online.

   2021 · mentioned.app · its alternatives →

9. 9
   Mail Track▲168

   Gmail extension to track when your emails are opened

   2023 · mailtrack.email · its alternatives →

10. 10
    Clearbit Reveal▲293

    Turn anonymous traffic into company data

    2016 · clearbit.com · its alternatives →

11. 11
    ContextSmith Free Email Tracker▲121

    Know when and where your emails are read

    2017 · chromewebstore.google.com · its alternatives →

12. 12
    Signals (iOS app)▲74

    See who opens your emails

    2014 · apps.apple.com · its alternatives →

13. 13
    SONAR - An Email Tracker for Gmail▲66

    See when your emails are read, every time

    2022 · getsonar.co · its alternatives →

14. 14
    Signals▲102

    See who opens your email

    2013 · its alternatives →

15. 15
    TrueLeads▲213

    Find anyone's email on LinkedIn 🚀

    2019 · trueleads.com · its alternatives →

16. 16
    Visitors.guru▲162

    Discover which companies are visiting your site. 🕵🏻

    2017 · visitors.guru · its alternatives →

17. 17
    Inbox, Spam, or Promotions?▲83

    See where your and your competition's emails are landing.

    2018 · gmass.co · its alternatives →

18. 18
    Email Tracker – Find out when and if people view your emails seamlessly▲14

    2015 · chrome.google.com · its alternatives →

19. 19
    Mailsbe▲66

    Find out if your email has been read or not

    2022 · mailsbe.netlify.app · its alternatives →

20. 20
    OneGlanse▲77

    Free open-source GEO tracker for LLM visibility

    Apr 2026 · oneglanse.com · its alternatives →

21. 21
    ViewDesk - PDF Insights▲5

    Turn PDFs trackable links, see who opens, reads, & engages.

    Jan 2026 · viewdesk.co · its alternatives →

22. 22
    PDFTrackr▲2

    Track who reads your PDFs page by page, with secure sharing. Built for sales teams, consultants and agencies. Free 500MB storage, no credit card required.

    2025 · pdftrackr.com · its alternatives →

23. 23
    Email Tracking for Zendesk▲6

    Did the client open my email? Never ask that question again.

    2019 · zendesk.com · its alternatives →

24. 24
    Email Open Tracker - Minimalist Edition▲1

    Chrome Extension to know when your Gmail is opened.

    Jun 2026 · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →