
Growth Hacking Kit
100 in 100 Challenge
Indie Hackers
Startup First Users
GrowthHackList
LaunchPedia
Wizen Guides
Get your startup's first 100 users.

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, First 100 Users seems to be more popular. It has been mentioned 2 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | first100users.com | devfinancetools.com |
| Pricing | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of First 100 Users 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 First 100 Users and DevFinanceTools. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Thanks for including Senja.io in your list! Good work. Check out first100users.com for some other ideas on promoting it. Source: over 3 years ago
u/DimaDK24 Thank you for mentioning my site first100users.com! Source: over 4 years ago
Tracking DevFinanceTools since Aug 2026.
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Helping you make rational decisions, one calculation at a time.
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Get 100 new paid users in 100 days
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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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Connect with fellow entrepreneurs, developers, and bootstrappers who are sharing the strategies and revenue numbers behind their companies.
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Should you build an internal tool? Or just buy it?
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