
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

Gaggle Mail
Google Groups
FreeLists
Mighty Networks
Discourse
Nabble
Admidio
Email and web based discussion group software, includes archiving, emails, wiki, polls, file...

Which is more popular?
Based on our record, Groups.io seems to be more popular. It has been mentioned 109 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | devfinancetools.com | groups.io |
| 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 Groups.io yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
No DevFinanceTools videos yet. You could help us improve this page by suggesting one.
Groups.io Orientation
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevFinanceTools and Groups.io. 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.
We have a local email list. Hosted on google groups, but I suppose you could use a tool like https://groups.io/ or self-host as well. - Source: Hacker News / over 1 year ago
We use https://groups.io/ and are happy. - Source: Hacker News / over 1 year ago
Seconding https://groups.io/ I'm in a number of amateur radio and computing groups there, and it works well. Launched on HN over a decade ago and still going strong - - Source: Hacker News / over 2 years ago
When comparing DevFinanceTools and Groups.io, you can also consider the following products.

Helping you make rational decisions, one calculation at a time.
Compare Omni Calculator to DevFinanceTools or Groups.io:

Gaggle Mail is a simple and easy to use email list manager.
Compare Gaggle Mail to DevFinanceTools or Groups.io:

Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
Compare calculator.net to DevFinanceTools or Groups.io:

Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
Compare Google Groups to DevFinanceTools or Groups.io:

Should you build an internal tool? Or just buy it?
Compare Build vs. Buy Calculator to DevFinanceTools or Groups.io:

FreeLists provides the internet community with Free, no-hassle, high-quality mailing lists
Compare FreeLists to DevFinanceTools or Groups.io: