
SpeedCrunch
Numi App
Soulver
fxSolver
SpeQ Mathematics
NumWorks
OpenCalc
Qalculate! is a multiplatform multi-purpose desktop calculator.

Zeal
Dash for macOS
Devhints
CSS-Tricks
CodePen
Carbon
Can I use
Open source API documentation browser with instant fuzzy search, offline mode, keyboard shortcuts, and more
Which is more popular?
Based on our record, DevDocs should be more popular than Qalculate!. It has been mentioned 132 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | qalculate.github.io | devdocs.io |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Qalculate! is recommended for students, engineers, scientists, and anyone who requires a robust computing tool for everyday calculations, unit conversions, and advanced mathematical functions. It's also ideal for users who appreciate open-source software and those looking for a customizable and comprehensive calculator.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
DSP Raspberry Pi 4 Qalculate! Install
DevDocs - An API Documentation Browser
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Qalculate! and DevDocs. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Qalculate is my favourite REPL-like calculator, although it unfortunately lacks an iOS app. It feels similar to using an HP 48-series calculator. Numbat is similar, but more... - Source: Hacker News / 8 months ago
Https://qalculate.github.io can do this also for as long as I've used it (only a couple years to be fair). I've got it on my phone, my laptop, even my server with the qalc command. Super convenient, supports everything from unit... - Source: Hacker News / over 1 year ago
Interesting project. I use command line Qalculate [1] for this (has a very similar feature set to Frink AFAICT) and Pint [2] for scripting. I feel like unit-aware calculators are hugely underused by physical engineers, it's the same idea... - Source: Hacker News / over 1 year ago
DevDocs (open source, free) is a local offline documentation viewer. There is a hosted version that can be used offline in a web browser. - Source: dev.to / 4 months ago
This isn't a new idea for developer tools. DevDocs, Zeal, and Dash have offered offline documentation browsing for years. What's new is applying this architecture to AI agents — giving your coding assistant the same offline, instant,... - Source: dev.to / 8 months ago
DevDocs the minimalist doc reader for when Stack Overflow doesn’t have the answer. - Source: dev.to / over 1 year ago
When comparing Qalculate! and DevDocs, you can also consider the following products.

SpeedCrunch. SpeedCrunch is a high-precision scientific calculator featuring a fast, keyboard-driven user interface. It is free and open-source software, licensed under the GPL. Download Documentation Donate .
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A free, open-source offline documentation browser that puts documentation for every major language and framework one instant search away, on Linux and Windows.
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Dash is an API Documentation Browser and Code Snippet Manager. Dash searches offline documentation of 200+ APIs and stores snippets of code. You can also generate your own documentation sets.
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Soulver is a software application that functions as a calculator that allows you type a continuous stream of information rather than having to input data into multiple cells.
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