
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

Anki
Memrise
Duolingo
HelloTalk
Clozemaster
Busuu
WordBrewery
Online platform for learning Chinese vocabulary.

Which is more popular?
Based on our record, Hack Chinese seems to be more popular. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | devfinancetools.com | hackchinese.com |
| Pricing | ||
| Platforms | — | |
| 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...
Hack Chinese is a retention-first spaced repetition platform for learning Chinese vocabulary online. Hack Chinese is a browser app that uses smart spaced repetition technique to maximize the retention of Chinese words.
What each product offers, as listed by its team.


Walkthroughs and reviews on video.
No DevFinanceTools videos yet. You could help us improve this page by suggesting one.
Hack Chinese Review (2020) The Ultimate Way to Learn Chinese Characters
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevFinanceTools and Hack Chinese. 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.
I've found the most success with learning words in some sort of flashcard format based on frequency lists (meaning learning the most frequently used words first), and then solidifying that learning by reading Chinese text in graded... Source: about 3 years ago
Hey there, u/DotLanguages! We'd love to integrate with you. We couldn't find contact information on your web page. Please reach out to us at team (at) hackchinese.com. Hopefully talk soon! Source: over 3 years ago
Hackchinese.com has lots of vocabulary lists, like "baking a cake" (14 words), "bicycles" (53 words), "bus" (29 words).... There is a free trial so you can see if you like it, but I don't remember how long it is. Source: over 4 years ago
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Anki is a program which makes remembering things easy. Because it's a lot more efficient than traditional study methods, you can either greatly decrease your time spent studying, or greatly increase the amount you learn.
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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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Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.
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Should you build an internal tool? Or just buy it?
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Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.
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