
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

Countdown Screensaver
Day One
Punkt
Journal
Happyfeed
REFLECTLY
Email Taco
A beautiful countdown app to the events that matter to you.
Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devfinancetools.com | daysapp.co |
| 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 Days App yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
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2 Days App Review and Demo
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevFinanceTools and Days App. For example, how are they different and which one is better?
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Helping you make rational decisions, one calculation at a time.
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A Mac screensaver for counting down to a date 🖥🕐
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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 simple journal application for the Mac, iPhone, and iPad. AboutTo learn more about Day One, see these two excellent reviews . PublishPublish is not available in Day One 2.
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Should you build an internal tool? Or just buy it?
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