PostKnock Alternatives

Apps similar to PostKnock include thanks.io, which has a free version. Other options are Lob and Mailjoy. In total there are three Email Marketing Services like PostKnock for the web.

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PostKnock alternatives page was last updated Jul 7, 2026

thanks.io
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We help businesses send mail people actually notice - personal, handwritten-style postcards notecards, giftcards, and letters powered by automation.
Cost / License
Freemium
Proprietary
Origin
United States
Platforms
Online
Software as a Service (SaaS)
United States
Good alternative?Is thanks.io a good alternative to PostKnock?
Lob
2 likes
APIs for Print, Mail, Postcards, Letters & Checks.
Cost / License
Paid
Proprietary
Origin
United States
Platforms
Online
United States
Good alternative?Is Lob a good alternative to PostKnock?
Mailjoy
1 like
Mailjoy is a DIY direct mail tool. It's the easiest way to send data-driven postcard campaigns. Simply upload your mailing list and design to send a campaign off in minutes.
Cost / License
Freemium
Proprietary
Application type
Email Marketing
Platforms
Online
Good alternative?Is Mailjoy a good alternative to PostKnock?

3 of 3 PostKnock alternatives