Growth · alternatives · 2026

24 alternatives to GlockApps 2.0

Next-level email testing and insights

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. GlockApps 2.0 launched in 2023; newer entries below may have overtaken it.

1. 1
   GlockApps▲98

   Test where your email will appear: Inbox or Spam

   2015 · glockapps.com · its alternatives →

2. 2
   New Gmail▲935

   The new version of Gmail web

   2018 · blog.google · its alternatives →

3. 3
   Mailwarm 2.0▲676

   The email warmup tool, upgraded for deliverability.

   Jun 2026 · mailwarm.com · its alternatives →

4. 4
   Really Good Emails 2.0▲674

   Really good curated email design and code inspiration

   2019 · reallygoodemails.com · its alternatives →

5. 5
   Mailmeteor 2.0▲290

   Send auto follow-up emails with Gmail

   2022 · mailmeteor.com · its alternatives →

6. 6
   GMass▲580

   Send email marketing campaigns INSIDE Gmail.

   2017 · gmass.co · its alternatives →

7. 7
   Hyperise Beta▲248

   2X your email CTR with dynamic personalised images.

   2019 · chromewebstore.google.com · its alternatives →

8. 8
   MailTester.AI▲327

   Forward an email and get an AI deliverability report in 30s

   2025 · mailtester.ai · its alternatives →

9. 9
   GMPlus▲154

   Transform your gmail communication with ChatGPT AI

   2023 · gmplus.io · its alternatives →

10. 10
    Unlimited Email Tracker▲496

    Track opens and clicks, set reminders and delays in Gmail

    2019 · snov.io · its alternatives →

11. 11
    EmailGenius Pro▲106

    Unleash email brilliance: elevate your email marketing game

    2023 · subhashpal.gumroad.com · its alternatives →

12. 12
    Mailnest▲100

    Sandbox Email testing tool for IT product, service companies

    2020 · mailnest.io · its alternatives →

13. 13
    Smart Compose in Gmail▲429

    Write emails faster with Smart Compose in Gmail

    2018 · blog.google · its alternatives →

14. 14
    Million Dollar Email Templates 2.0▲349

    Steal the emails that have generated $100+ million

    2021 · million-dollar-emails.com · its alternatives →

15. 15
    Emailurgency▲78

    Improve email marketing potential with animations.

    2018 · emailurgency.com · its alternatives →

16. 16
    GlockApps▲8

    Check your email's deliverability

    2016 · glockapps.com · its alternatives →

17. 17
    Mailtrack.io▲282

    The best email tracking solution I've found. Free

    2014 · mailsuite.com · its alternatives →

18. 18
    Gblock▲107

    Block email tracking in Gmail

    2025 · gblock.app · its alternatives →

19. 19
    SendGrid Email Analytics by Keen IO▲201

    Detailed email reporting that drives results

    2017 · keen.io · its alternatives →

20. 20
    MarketPlan 2.0▲109

    Map, plan, project, analyze & optimize your marketing

    2020 · marketplan.io · its alternatives →

21. 21
    SalesHandy 2.0▲92

    Email and document tracking with automation

    2018 · saleshandy.com · its alternatives →

22. 22
    Autoklose 2.0▲124

    Cold email reimagined 💌

    2020 · app.autoklose.com · its alternatives →

23. 23
    Spark 2.0▲211

    Revolutionary email for teams

    2018 · sparkmailapp.com · its alternatives →

24. 24
    Square Marketing▲197

    Drag & drop email marketing and automation from Square 💌

    2019 · squareup.com · 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 →