
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

FinViz
Koyfin
TradingView
AlphaResearch.io
AlphaScreener
GoCharting
Intraday Screener
An AI-first stock screener and backtester for US stocks and ETFs. Build screens in plain English across technicals, fundamentals, news sentiment and insider trades, then backtest the screen itself. Every AI answer cites its source.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devfinancetools.com | ninethirty.ai |
| Pricing | ||
| Company | 2026 | 10 - 19 employees · 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...
Most traders build a shortlist in one tool and reason about it in another. The screener returns tickers, the thinking happens in a spreadsheet, and weeks later nobody remembers which condition was the actual bet. NineThirty closes that gap for US equities and ETFs. Screen in plain English Type...
What each product offers, as listed by its team.


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


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External articles and on-site reviews we used to compare the two products.


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Should you build an internal tool? Or just buy it?
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