Server Fault
Tildes
Qane
Ureka
MetaFilter
Reddit
Sapien
20-Things is a social media / link aggregator

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

Which is more popular?
Based on our record, 20-Things seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
2T
20-Things
|
|
|
|---|---|---|
| Website | 20-things.com | devfinancetools.com |
| Pricing | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of 20-Things yet.
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...
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 20-Things and DevFinanceTools. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Rewriting https://20-things.com in TS and React (new frontend: https://client.20-things.com). - Source: Hacker News / over 3 years ago
I am building something similar (https://20-things.com) where the idea is to have the frontpage only display 20 things. No paging, no endless scrolling. Good luck with your project! - Source: Hacker News / almost 4 years ago
So you're telling me that my startup (http://20-things.com) which aims to compete with reddit - is not bound to fail at launch? :). Source: almost 5 years ago
Tracking DevFinanceTools since Aug 2026.
When comparing 20-Things and DevFinanceTools, you can also consider the following products.

Server Fault is a Q&A site for system administrators and IT professionals that's free.
Compare Server Fault to 20-Things or DevFinanceTools:

Helping you make rational decisions, one calculation at a time.
Compare Omni Calculator to 20-Things or DevFinanceTools:

A non-profit community site driven by its users' interests
Compare Tildes to 20-Things or DevFinanceTools:

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 20-Things or DevFinanceTools:

A place to ask and answer questions without registration
Compare Qane to 20-Things or DevFinanceTools:

Should you build an internal tool? Or just buy it?
Compare Build vs. Buy Calculator to 20-Things or DevFinanceTools: