OpenStreetMap
Open Data Inception
Our World In Data
London Datastore
Work With Data
PublicAPIs
Premise
Instant access to all* open data from a single place

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?
Website, pricing, platforms and company facts side by side.
|
VD
Vacuum Data
|
|
|
|---|---|---|
| Website | tryvacuum.com | devfinancetools.com |
| Pricing | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Vacuum Data 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.

No features have been listed yet.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Vacuum Data and DevFinanceTools. For example, how are they different and which one is better?
When comparing Vacuum Data and DevFinanceTools, you can also consider the following products.

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Helping you make rational decisions, one calculation at a time.
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2700+ Open data portals around the World
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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 web publication showcasing empirical research and data
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Should you build an internal tool? Or just buy it?
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