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Postmark VS JustCall

Compare Postmark VS JustCall and see what are their differences

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.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
JustCall

The Cloud Phone System of choice for modern sales and support teams. We help end clueless conversations by adding context to every call.

Rating
0 reviews
Pricing
Paid $30 / Monthly
Alternatives Is it good?
Omnivery
Security-first transactional email: SMTP relay and REST API for password resets, receipts, 2FA and notifications. 100% owned infrastructure, strict sender vetting, human deliverability, ISO 27001/27701/HIPAA, native SendGrid/Mailgun compatibility. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Postmark seems to be a lot more popular than JustCall. While we know about 57 links to Postmark, we've tracked only 4 mentions of JustCall.

social mentions
57 vs 4
Email Marketing popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

Postmark
JustCall
Website postmarkapp.com justcall.io
Pricing
Open source Official pricing
Paid $30 / Monthly Official pricing
Platforms —
Web Browser Windows Mac OSX Linux Android iOS +4
Company Startup from the United States 2018
Listed in
Email Delivery Email Marketing Email Marketing Platforms Newsletter Marketing +1
Phone System Call Center Software Call Center Solution Sales Automation Call Center Services Video Conferencing Bulk Sms Auto Dialer Cloud Hosting +6

About Postmark and JustCall

In their own words, as submitted to SaaSHub.

Postmark
JustCall

No description of Postmark yet.

The Cloud Phone System of choice for modern sales and support teams. End clueless conversations by adding context to every call. Call software, virtual numbers, SMS campaigns, native CRM integrations, and lots more at just $25 per user. 100+ integrations with CRM & Business tools Click to...

Read more about JustCall

Features and specs

What each product offers, as listed by its team.

Postmark 7 features
JustCall 5 features
  • High Delivery Rates
    Postmark is known for its high email delivery rates, ensuring that transactional emails reach inboxes promptly.
  • Fast Sending Speed
    Emails through Postmark are processed and sent very quickly, which is crucial for transactional emails requiring immediate delivery.
  • User-Friendly Interface
    The platform has an intuitive and easy-to-navigate interface, making it accessible for users of varying technical skills.
  • Detailed Analytics
    Postmark provides comprehensive analytics, including open rates, click rates, and delivery logs, enabling detailed tracking of email performance.
  • Reliable API
    Postmark offers a highly reliable and well-documented API, facilitating seamless integration with various applications.
  • Top-Notch Customer Support
    The service is praised for its responsive and knowledgeable customer support team, available to assist with any issues.
  • Emphasis on Security
    Postmark prioritizes email security with features like two-factor authentication and SSL encryption.

Possible disadvantages

  • Cost
    Postmark's pricing can be relatively high compared to some other email service providers, particularly for larger email volumes.
  • Lack of Marketing Email Features
    Postmark is primarily designed for transactional emails and lacks many advanced features needed for marketing emails, such as list segmentation and complex automation workflows.
  • Rate Limits
    Postmark imposes rate limits on sending emails, which might be a constraint for businesses with very high or bursty email volumes.
  • Limited Template Customization
    While Postmark allows for the use of email templates, the customization options are more limited compared to specialized email design tools.
  • Geographical Limits
    Postmark's server locations are primarily based in the U.S., which may affect email delivery speeds in other regions.
  • Lack of SMS Integration
    Postmark does not offer SMS sending capabilities, which may be a drawback for businesses looking to consolidate their communication channels.
  • Ease of Use
    JustCall offers an intuitive interface that's simple to navigate, making it easy for teams to get up and running quickly.
  • Integration Capabilities
    JustCall integrates seamlessly with numerous CRMs and business tools, such as Salesforce, HubSpot, and Slack, enhancing workflow efficiency.
  • Global Calling
    The platform supports international calling, which is beneficial for businesses with global customers or remote teams.
  • Automation Features
    JustCall automates various tasks like call scheduling and follow-ups, saving time and reducing manual effort.
  • Analytics and Reporting
    The service provides comprehensive analytics and reporting features, enabling businesses to track performance and make data-driven decisions.

Possible disadvantages

  • Price
    Some users find the pricing structure to be on the higher side, especially for small businesses or startups.
  • Call Quality
    There have been occasional reports of poor call quality or dropped calls, which can impact customer communication.
  • Limited Advanced Features
    While JustCall covers essential features, it may lack some of the nuanced advanced functionalities that are available in other, more comprehensive platforms.
  • Customer Support
    Some users have experienced delays or less satisfactory responses from customer support, which can be problematic in urgent situations.
  • Learning Curve for Advanced Features
    While basic functions are easy to use, mastering some of the more advanced features may require additional training or time.

Analysis

An editorial look at what each product does well and who it suits.

Postmark
JustCall

Overall verdict

  • Yes, Postmark is considered a good option for those needing a reliable and efficient transactional email service. It stands out due to its focus on speed, deliverability, and ease of use for both developers and businesses.

Why this product is good

  • Postmark is praised for its reliable email delivery service, which is specifically designed for transactional emails. It offers fast delivery times, extensive real-time tracking, and detailed analytics. Additionally, Postmark provides a user-friendly API and robust documentation, making it easy for developers to integrate and maintain. The service is known for its strong focus on sending emails quickly and efficiently, with a low probability of ending up in spam folders.

Recommended for

  • Businesses needing efficient and reliable transactional email delivery.
  • Developers looking for easy API integration and robust documentation.
  • Organizations requiring real-time email tracking and detailed analytics.
  • Companies prioritizing quick email deliverability and avoiding spam filters.

Overall verdict

  • Overall, JustCall is considered a strong choice for businesses looking for a comprehensive and flexible communication tool. However, as with any service, it's important to evaluate how its features align with your specific business needs.

Why this product is good

  • JustCall is a cloud-based phone system designed for sales and support teams. It offers a suite of features including call forwarding, SMS capabilities, integrations with various CRM tools, and call monitoring. Users often praise its ease of use, ability to integrate with existing systems, and customer support. It's particularly beneficial for teams that need a reliable VoIP service with global reach.

Recommended for

    JustCall is ideal for small to medium-sized businesses that require a cost-effective, easy-to-implement call system. It's also suitable for remote teams and businesses with a high volume of outbound calls or those that rely heavily on CRM integrations.

Videos

Walkthroughs and reviews on video.

Postmark 1 video + Add
JustCall 3 videos + Add

Using Postmark to send email from Darkroom Booth

Customer Talks

More videos

  • - Customer Talks
  • - How to Set-up IVR?

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Postmark
JustCall
100% 100%
Email Marketing
0% 0%
0% 0%
Communication
100% 100%
100% 100%
Email Delivery
0% 0%
0% 0%
Call Center Software
100% 100%

User comments

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

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

Postmark no reviews yet
JustCall no reviews yet

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Postmark 57 mentions
JustCall 4 mentions
  • 7 SMTP APIs Worth Knowing in 2026, and Where I'd Start
    Postmark has been doing exactly one thing since 2010: transactional email, done carefully. It enforces a hard separation between transactional and bulk/marketing sending streams (you can't mix them on the same account), which is exactly... - Source: dev.to / 1 day ago
  • Congrats to the Winners of Postmark Challenge: Inbox Innovators!
    We want to shout out Postmark for sponsoring this challenge. Postmark's developer-focused API and reliable inbound email parsing made these innovative projects possible, allowing the community to focus on creativity rather than email... - Source: dev.to / about 1 year ago
  • PurifyPDF – A Privacy-First PDF Sanitizer in Your Inbox
    PurifyPDF is a privacy-first PDF sanitization workflow built using n8n, Postmark, PDF.co, and Airtable. - Source: dev.to / over 1 year ago

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  • Newbie here. How would you target other businesses for establishing partnerships in the efficient way?
    If you're going to cold call, utilize software that'll show call logs etc. In your CRM (justcall.io is one example, but there's tons of options for this). Source: almost 4 years ago
  • Remote workers and phone system
    Another I've just heard about from colleagues is JustCall, as it integrates with HubSpot...which we just started using. But I can't speak to service. (Broadvoice only integrated with Salesforce which is well beyond what we can use) Good... Source: almost 4 years ago
  • For the love of god, is there a way to mass upload calls to Zoho? Some work around to expedite this process?
    We use Just call (https://justcall.io/) - it's integrated and relatively cheap. Call straight out of Zoho. No relationship - just a customer. Source: almost 4 years ago

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Alternatives to Postmark and JustCall

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

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