Software Alternatives & Reviews

Postman VS Klaviyo

Compare Postman VS Klaviyo and see what are their differences

Postman logo Postman

The Collaboration Platform for API Development

Klaviyo logo Klaviyo

Klaviyo helps brands own the customer experience, grow higher-value relationships, and deliver more personalized marketing experiences across email, mobile, and web.
  • Postman Landing page
    Landing page //
    2021-07-23
  • Klaviyo Landing page
    Landing page //
    2023-09-17

What do sophisticated D2C brands like ColourPop, Huckberry, and Custom Ink all have in common?

They rely on Klaviyo, the leading growth marketing platform chosen by more than 20,000 online businesses. And the results speak for themselves—brands have made more than $3.7 billion in revenue using Klaviyo in the last year alone. With a dedicated team of experts and a platform that consumes more data than any other on the market, Klaviyo helps you own the customer experience and grow higher-value relationships.

From a shopper’s first impression to each subsequent purchase, Klaviyo understands every interaction, empowering online businesses to create more personalized marketing moments. When you have a 360-degree view of the customer, the growth possibilities are endless.

Postman videos

POST/CON 2018 workshop in review: Running Postman Collections

More videos:

  • Review - POST/CON 2018 workshop in review: Postman Collections
  • Tutorial - How to Share Postman Collections

Klaviyo videos

MailChimp vs Klaviyo - My Honest Assessment and Review

More videos:

  • Review - Klaviyo Review: Best Email Marketing for Shopify
  • Review - Best Shopify Email Marketing Software | Klaviyo Overview & Review

Category Popularity

0-100% (relative to Postman and Klaviyo)
API Tools
100 100%
0% 0
Email Marketing
0 0%
100% 100
APIs
100 100%
0% 0
Email Marketing Platforms

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Postman and Klaviyo

Postman Reviews

Beeceptor vs Postman
You cannot download request log. Although, you can use Postman APIs to query and retrieve.
Source: beeceptor.com
Top 15 MuleSoft Competitors and Alternatives
Postman is an API platform with the world’s largest public API hub that helps developers design, build, test, and iterate APIs. In 2022, Postman served over 20 million developers and 500,000 organizations.
Top 10 HTTP Client and Web Debugging Proxy Tools (2023)
Are you a developer thrilled with APIs? Then Postman HTTP client and web debugging proxy tool is for you. Now why is this even a choice to use? Postman is ultimately one of the platforms that do anything APIs. It builds, organizes APIs, tests, monitors, documents, and most of all debugs web applications.
12 HTTP Client and Web Debugging Proxy Tools
Postman is unarguably one of the more popular HTTP clients used for debugging web applications. It allows for faster and easier API development.
Source: geekflare.com
Best API Monitoring and Observability Tools in 2023
Postman free plan: Provides a maximum of 1000 calls to Postman API, Mock server calls, and monitoring API calls. Pricing starts at $12/month for the paid plan.
Source: apitoolkit.io

Klaviyo Reviews

10 best Manychat alternatives in 2024 (free & paid)
Klaviyo is a platform for sending SMS, emails, and mobile push notifications. You can use it to centralize customer data and interactions and build, deliver, and optimize personalized experiences.
Source: chatfuel.com
Klaviyo Alternative
As we wrote this page, Klaviyo just increased it’s price a few weeks ago. But still charges for contact list size. We don’t. Fair pricing for a marketing automation solution should be based on active users. If pricing is important for your marketing automation software, then you need to consider Vibetrace as a good Klaviyo alternative.
Source: vibetrace.com
Best 12 Klaviyo Alternatives for Shopify
However, these functionalities may be out of your reach due to the cost of Klaviyo. Klaviyo’s free plan is great for a start. You can access this tool’s many functionalities, but only if your contact list is 250 or less. The more your contact list grows, the higher the cost. Klaviyo can become expensive in no time with a higher contact list.
Source: adoric.com
9 Best Campaign Monitor Alternatives To Power Up Your Personalization Efforts [2023]
Klaviyo’s prices start at $20/month for 500 contacts, making it one of the less affordable email marketing options. A free plan with limited capabilities allows up to 250 email contacts and 500 email sends. The customer support of the free plan is through email only. If Klaviyo’s pricing sounds expensive, here’s a list of some great Klaviyo alternatives to consider.
Source: moosend.com
11 Best Omnisend Alternatives and Competitors for 2022
Klaviyo is a complete tool for email marketing that offers a collection of marketing automation features including email campaigns, text messages, automated workflows, pop-ups, advanced segmentation, etc. The overall email marketing tool of Klaviyo is user-friendly and seamlessly connects to your online store with just a few clicks.

Social recommendations and mentions

Based on our record, Postman should be more popular than Klaviyo. It has been mentiond 27 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.

Postman mentions (27)

  • How to use ApyHub to Build a Serverless Function in NodeJs?
    Once deployed, thoroughly test your serverless function to confirm it behaves as expected. Invoke the function manually from the cloud platform’s console or use tools like Postman, Apidog, or Fusion ( Fusion is ApyHub’s own API Client ) to test HTTP-triggered functions. Ensure the function executes correctly and handles errors gracefully. - Source: dev.to / about 2 months ago
  • Mastering Microservices: A Hands-On Tutorial with Node.js, RabbitMQ, Nginx, and Docker
    To test the API endpoints, you can use Postman. Download and install Postman from Postman's official website. - Source: dev.to / 3 months ago
  • A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
    Postman — Simplify workflows and create better APIs – faster – with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits. - Source: dev.to / 3 months ago
  • How I Built A Santa Chatbot To Mess With My Brother
    The API tests were dirt simple. I use the SAM CLI to build and deploy my cloud resources to AWS. So when I was building the API, I would deploy to my account using the CLI in VS Code, then immediately run a collection in Postman using their VS Code extension. I never had to leave my IDE and could run a full end-to-end workflow within seconds of my deployment being complete. All I had to do was switch tabs to my... - Source: dev.to / 4 months ago
  • Are you kidding me?
    I had the network guys opening up for getpostman.com and postman.com because it said so when trying to log in to Postman. And just when I click login it jumps to postman.co just forgetting the m. Are you kidding me? Who came up with this? You probably cost me this days work. Source: 5 months ago
View more

Klaviyo mentions (3)

  • Ecomm Crew Podcast - Knitting.com
    Like I said, I think of keyword.com type domains as being very early 2000's - 2010. I started doing this in 2004 and back then there were quite a few big internet marketers that were attempting to build big website properties on domains like income.com. I think it's kind of worthless at this point, especially after Google came out and said domain age and keyword in the domain is pretty much irrelevant at this... Source: about 2 years ago
  • How to encourage customers to leave excellent reviews?
    A mix between smile.io, reviews.io and klaviyo.com flows will automatically send an incentivized review request on a specific post-purchase delay. Source: over 2 years ago
  • Skincare Site
    Going through your store I discovered you need a nice Sales funnel set up through klaviyo.com with you can retarget all the traffic that come through the pop up form and you all need to revamp your store to use the latest 2021 premium motion theme. Source: over 2 years ago

What are some alternatives?

When comparing Postman and Klaviyo, you can also consider the following products

Insomnia REST - The most intuitive cross-platform REST API Client 😴

Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.

MuleSoft Anypoint Platform - Anypoint Platform is a unified, highly productive, hybrid integration platform that creates an application network of apps, data and devices with API-led connectivity.

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

DreamFactory - DreamFactory is an API management platform used to generate, secure, document, and extend APIs.

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.