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

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.
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2T
20-Things
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| Website | devfinancetools.com | 20-things.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 20-Things 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 20-Things. 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.
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
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