Software Alternatives & Reviews

Customer.io VS Postmark

Compare Customer.io VS Postmark and see what are their differences

Customer.io logo Customer.io

We make it easy to send emails triggered by user behavior. Build, measure and improve your emails to activate and retain users

Postmark logo Postmark

Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
  • Customer.io Landing page
    Landing page //
    2023-10-08
  • Postmark Landing page
    Landing page //
    2024-03-19

Customer.io videos

Intercom vs Customer.io vs Zendesk Connect? What's the Best Tool?

More videos:

  • Review - Get to know Customer.io
  • Review - Colin Nederkoorn, CEO of Customer.io, on why knowing your customers is the key to growth

Postmark videos

Using Postmark to send email from Darkroom Booth

Category Popularity

0-100% (relative to Customer.io and Postmark)
Email Marketing
47 47%
53% 53
Email Marketing Platforms
Email Delivery
0 0%
100% 100
CRM
100 100%
0% 0

User comments

Share your experience with using Customer.io and Postmark. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Customer.io and Postmark

Customer.io Reviews

15 best user onboarding software you need to try in 2023
With a focus on messaging, Customer.io lets you create sales workflows around various pushes and nudges, across a range of channels. Email, SMS messages, and push notifications can all be built into an engagement campaign designed to pique curiosity.
15 Mailchimp Alternatives for SaaS Companies
What's more, Customer.io offers advanced automated or API-triggered workflows and various advanced functionalities like time delay or time windows to ensure that you reach customers at the best time for them to take action.
Source: userlist.com
"Pay 880$ per month" - Intercom
Did you find any good option in place of customer.io ? As customer.io seems very expensive once your contact numbers increase.
The 36 Best Marketing Automation Tools to Use in 2020
Some tools like Customer.io, Autopilot, and Encharge merge the gap between marketing and transactional emails and provide a cohesive platform to automate the whole customer journey from a lead to an active user. However, there are platforms like Sendgrid and Mailgun that focus specifically on transactional emails. These infrastructure platforms are usually used by developers...
Source: encharge.io

Postmark Reviews

7 Best Transactional Email Services: Sendgrid vs. Mandrill & More
Postmark are the most expensive transactional email service (10x the cost of Amazon SES), so what do they do to justify the sky high pricing? Their focus seems to be on providing a high-end service using only the best hardware and software to keep your receive rates high, and your data secure. The impression I get with Postmark is that they’re one of the more transparent...

Social recommendations and mentions

Based on our record, Postmark should be more popular than Customer.io. It has been mentiond 49 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Customer.io mentions (27)

  • Self-hostable SMS automation
    I just added SMS as a messaging channel to Dittofeed (MIT licensed customer.io alternative). Source: 7 months ago
  • Is this a good use case for Autogpt ?
    Sounds like you need good old automation. Zapier, customer.io, pipedream are some. Source: 11 months ago
  • MarTech Edge Interview with Jason Lyman, Chief Marketing Officer, Customer.io
    Since joining Customer.io, I have focused on getting to know our ideal customer profile, assessing the competitive landscape, and understanding current market trends. These insights have allowed me to revamp marketing's objectives and set clear goals for the year. I'm looking forward to leveraging what I've learned in past roles to mature the marketing function at Customer.io, better support our customers, and... Source: 12 months ago
  • Newsletter or phishing?
    Looks like Notion uses customer.io for emails, so probably just a basic marketing/newsletter emails from Notion. Source: about 1 year ago
  • 💰 My Frugal Indie Dev Startup Stack
    The final note I'll make is that I've hand-rolled a few additional features that people are normally paying for. For example, I don't use Mailchimp or any tool like that — I send my marketing mail straight via Sendgrid. I dont use customer.io for my email sequences — even though it's very good — because I was able to just build my own email sequencing system. Time will tell whether I end up needing to replace my... - Source: dev.to / over 1 year ago
View more

Postmark mentions (49)

  • Ask HN: What do you recommend for SaaS broadcast emails?
    I use Postmark (https://postmarkapp.com/) for transactional emails OnlineOrNot has an email-only auth option, and it was the only provider I found that could actually deliver emails in a second or so (rather than minutes). - Source: Hacker News / about 2 months ago
  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    Postmark - 100 emails/month free, unlimited DMARC weekly digests. - Source: dev.to / 3 months ago
  • How do people send system messages to (human) clients these days?
    When building apps/websites I often need to send messages to the business owner / admin. The messages range from almost logging type messages such as - "Payment failed for Order 123, please manually process the transaction" to generic contact forms on a website: - "FirstName LastName sent a message with the following text: something something something" My knowledge is rather old and currently I just send email... - Source: Hacker News / 8 months ago
  • how I got customer onboarding right
    Sendgrid, Mailgun, or Postmark are great solutions if you have a need for transactional emails that are technical. I still prefer using Customer.io for this need. If you’re unsure what transactional emails are, check out this guide. Source: 8 months ago
  • Who is your preferred mass email provider?
    I used MailGun before and migrated to https://postmarkapp.com . Works very well. Source: 10 months ago
View more

What are some alternatives?

When comparing Customer.io and Postmark, you can also consider the following products

Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.

SendGrid - Learn why more developers choose SendGrid for their email deliverability service to send transactional emails triggered by web apps. Get started for free

MailChimp - MailChimp is the best way to design, send, and share email newsletters.

Mailgun - A set of powerful APIs that enable you to send, receive and track email from your app effortlessly whether you use Python, Ruby, PHP, C#, Node.js or Java.

Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.

Mailjet - All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.