
Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

Listmonk
Sendy
TinyLetter
MailChimp
Mailman
Publicate
SendPortal
Self-hosted open-source Mailchimp clone

Which is more popular?
Based on our record, Mailtrain seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devfinancetools.com | mailtrain.org |
| Pricing | ||
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
No description of Mailtrain yet.
What each product offers, as listed by its team.


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


No analysis of DevFinanceTools yet.
Overall verdict
Why this product is good
Recommended for
Mailtrain is recommended for small to medium-sized businesses, developers, and organizations seeking a self-hosted email marketing solution. It is particularly suitable for those who have the technical expertise to manage and customize open-source software or those who want to keep their hosting in-house to ensure data privacy and minimize costs.
Walkthroughs and reviews on video.
No DevFinanceTools videos yet. You could help us improve this page by suggesting one.
Review on the Austrains mailtrain pack
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevFinanceTools and Mailtrain. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevFinanceTools since Aug 2026.
Listmonk is fantastic -- I use it for the newsletter of my own blog and am amazed by how simple it was to set up and how easy it is to operate and use every time I send out a newsletter. Prior to Listmonk I used Mailtrain[0] and like... - Source: Hacker News / about 5 years ago
Never tried but have a look at Mosaico and GrapesJS. Both are open-sourced and used by Mailtrain. Source: over 5 years ago
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES
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Should you build an internal tool? Or just buy it?
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Start writing your own newsletter instantly.
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