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EspoCRM VS Letterstack

Compare EspoCRM VS Letterstack and see what are their differences

EspoCRM

EspoCRM is open source CRM (Customer Relationship Management) software that allows you to see, enter and evaluate all your company relationships regardless of the type.

Rating
5.0 · 2 reviews
Pricing
Open source Free Free trial
Promote on VibeVoted
Alternatives Is it good?
Letterstack

Resources for building, growing and monetizing a newsletter

Rating
0 reviews
Promote on VibeVoted
Alternatives Is it good?
Zentivue
Zentivue drafts social posts, emails and blogs every week in each client's own voice. You review and approve every draft. Built for one brand or many. sponsored

Which is more popular?

CRM popularity
100% vs 0%
alternatives listed
240+ vs 38

Base details

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

EspoCRM
Letterstack
Website espocrm.com letterstack.co
Pricing
Open source Free Free trial
—
Platforms
REST API PHP JavaScript NGINX +1
—
Company Startup from Ukraine · 2014 —
Listed in
CRM Open Source Sales Sales Workflow Marketing Customer Support Business Management +4
Productivity Email Newsletters AI Marketing +1

About EspoCRM and Letterstack

In their own words, as submitted to SaaSHub.

EspoCRM
Letterstack

EspoCRM is a web-based application designed with the needs of startups, small and mid-size companies in mind. The software offers a wide range of features for automating every aspect of your business - from simple management of customer interactions and monitoring of the deal progress to advanced...

Read more about EspoCRM

No description of Letterstack yet.

Features and specs

What each product offers, as listed by its team.

EspoCRM 8 features
Letterstack 0 features
  • Sales management
    Quotes, Sales Orders, Invoices
  • Marketing Automation
    Campaigns, Email Templates, Target Lists
  • Customer Support
    Customer Portals
  • Inventory Managment
    Products & Product Catalogs
  • Telephony
    Voip Integration, Voice Messages, Inbound & Outbound Calls
  • Team Collaboration
    Real-time Notifications, Stream, Shared Calendars
  • Reports & analytics
    Grid & List Reports, Revenue Forecasts
  • Data Synchronization
    Google Contacts & Calendar, Outlook Contacts & Calendar

No features have been listed yet.

Analysis

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

EspoCRM
Letterstack

Overall verdict

  • EspoCRM is a robust and versatile CRM solution that is well-suited for organizations looking for an open-source option with customizable features. It is generally positively reviewed for its ease of use and the value it provides at a competitive cost.

Why this product is good

  • EspoCRM is considered a good choice because it offers a user-friendly interface, a variety of features that cater to small and medium-sized businesses, and it is highly customizable. It allows businesses to manage their relationships and automate workflows effectively. Additionally, it is open-source, which provides flexibility in terms of development and integration with other tools and systems.

Recommended for

  • Small to medium-sized businesses
  • Organizations looking for an open-source CRM solution
  • Companies requiring a customizable CRM system
  • Businesses that need workflow automation and efficient relationship management
  • Teams looking for an easy-to-use interface with good community and support options

Overall verdict

  • Letterstack appears to be a solid newsletter and email publishing platform for creators looking to build and monetize an audience, though as with any tool its value depends on your specific needs.

Why this product is good

  • Simplifies newsletter creation and distribution without technical overhead
  • Typically offers audience management and subscriber growth tools
  • Often includes monetization options like paid subscriptions
  • Designed with an intuitive interface suited for independent creators and writers

Recommended for

  • Independent writers and bloggers launching a newsletter
  • Creators seeking to monetize content through paid subscriptions
  • Small businesses wanting a straightforward email marketing tool
  • Solo entrepreneurs building and engaging an audience

Videos

Walkthroughs and reviews on video.

EspoCRM 3 videos + Add
Letterstack 1 video + Add

Using EspoCRM

More videos

  • - EspoCRM - General Overview | CRM
  • - Workflow in EspoCRM | Powerful Automation in your Business

Letterstack for iPhone

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
EspoCRM
Letterstack
100% 100%
CRM
0% 0%
0% 0%
Productivity
100% 100%
100% 100%
Sales
0% 0%
0% 0%
Email Newsletters
100% 100%

User comments

Share your experience with using EspoCRM and Letterstack. 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.

EspoCRM 5.0 · 2 reviews
Letterstack no reviews yet
  • Open-source solution that truly meets your needs
    SaaSHub review
    · Aug 2025

    We’ve been using EspoCRM for over a year already and so far it has met all of our needs. The ability to shape the system around our work processes has been the biggest advantage for us. We’ve customized fields,...

  • A convenient CRM platform for lead management and marketing
    SaaSHub review
    · Mar 2025

    We use EspoCRM to solve many tasks. In particular, the marketing department actively uses this platform for lead storage, contact management and email automation.

We have no reviews of Letterstack yet. Be the first one to post

Alternatives to EspoCRM and Letterstack

When comparing EspoCRM and Letterstack, you can also consider the following products.

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