Growth · alternatives · 2026

24 alternatives to Thanks.io

Direct mail automation platform

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

1. 1
   Thanks.io▲7

   Automagic Direct Mail Automation Platform

   2019 · thanks.io · its alternatives →

2. 2
   Mailgo▲469

   AI-powered cold email platform that boosts deliverability

   2025 · mailgo.ai · its alternatives →

3. 3
   thanks.io▲8

   Send handwritten notes, postcards, letters and gift cards

   2021 · thanks.io · its alternatives →

4. 4
   Inbox Zero▲821

   Clean Up Your Inbox In Minutes Newsletter management, AI automation, and email analytics. Inbox Zero is the open-source email app that puts you back in control of your inbox.

   2023 · getinboxzero.com · its alternatives →

5. 5
   Customer.io▲358

   Send email based on what people do (or don't do) in your app

   2014 · customer.io · its alternatives →

6. 6
   Polymail Web▲437

   All-in-one email platform for sales communication

   2018 · polymail.io · its alternatives →

7. 7
   Prospect.io - Sales Automation▲310

   Sales prospecting automation

   2016 · overloop.com · its alternatives →

8. 8
   Superflows▲476

   AI assistant for email - get to inbox zero faster

   2023 · superflows.ai · its alternatives →

9. 9
   SendX 2.0▲277

   Growth tools & marketing automation for non-marketers

   2017 · sendx.io · its alternatives →

10. 10
    Platformly▲257

    Marketing automation software for SaaS and Ecommerce

    2019 · platformly.com · its alternatives →

11. 11
    Warmy.io▲194

    Auto all-in-one tool to make your email channel reliable

    2022 · warmy.io · its alternatives →

12. 12
    Warmy.io▲417

    Boost your email deliverability with an AI driven algorithm

    2024 · warmy.io · its alternatives →

13. 13
    Directmailer.io▲6

    Direct mail with digital superpowers.

    2024 · app.directmailer.io · its alternatives →

14. 14
    Success.ai▲364

    Supercharge your growth with AI-powered cold emails

    2023 · success.ai · its alternatives →

15. 15
    Postal.io for HubSpot▲81

    Send handwritten notes, gifts, or direct mail in minutes

    2020 · ecosystem.hubspot.com · its alternatives →

16. 16
    Mailercloud▲257

    Automate, optimize, convert, next level email automation

    2024 · mailercloud.com · its alternatives →

17. 17
    Postalytics▲81

    Direct mail automation

    2021 · postalytics.com · its alternatives →

18. 18
    Outboundly.ai▲190

    AI-powered cold outreach platform

    2023 · outboundly.ai · its alternatives →

19. 19
    Zagomail▲73

    Email marketing and automation platform

    2021 · its alternatives →

20. 20
    UniqMail▲86

    Revolutionize emailing with AI customization with Free App

    2024 · arcade.now · its alternatives →

21. 21
    Mailchimp Automation▲162

    Marketing automation for everyone.

    2014 · mailchimp.com · its alternatives →

22. 22
    Inbox AI▲201

    AI-Powered Personal Productivity

    2024 · its alternatives →

23. 23
    Thankster▲131

    Automagically send hand written cards

    2015 · thankster.com · its alternatives →

24. 24
    1000 Happy Dads▲142

    Send love to dad with AI personalized gratitude letters

    2024 · 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 →