
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
DISQUS
giscus
Hyvor Talk
utterances
Slab Fast
Commentix
IntenseDebate
A very fast, feature-full, and privacy-focused comment service for handling discussions on the internet. At 4.6 kB with no dependencies, it's the fastest comment service around.

Which is more popular?
Based on our record, FastComments seems to be more popular. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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FC
FastComments
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| Website | devfinancetools.com | fastcomments.com |
| 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 FastComments yet.
What each product offers, as listed by its team.

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

Share your experience with using DevFinanceTools and FastComments. 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.
I'm working on Watch.ly - a remote human-in-the-loop networking and FS sandbox for AI agents like openclaw: https://watch.ly/ Also this week launching https://dirtforever.net/ which is an open alternative to RaceNet Clubs for Dirt Rally... - Source: Hacker News / 6 months ago
Hello! This year I've been working on building an integrated registration and live timing platform [0] for my local organizers in CA, but it is spreading. Very fun/rewarding project. I hope to launch my own cellular-based timing hardware... - Source: Hacker News / about 2 years ago
Another one I can recommend enthusiastically but forgot to mention before, is a paid service called FastComments (https://fastcomments.com/). Great, non-heavy code with a super-helpful developer. Source: over 4 years ago
When comparing DevFinanceTools and FastComments, you can also consider the following products.

Helping you make rational decisions, one calculation at a time.
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Disqus is a global comment system that improves discussion on websites and connects conversations across the web.
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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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A comments system powered by GitHub Discussions. Let visitors leave comments and reactions on your website via GitHub!
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Should you build an internal tool? Or just buy it?
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The Best Commenting Platform For Your Website
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