Table of contents
Free42
Free42, an HP-42S calculator simulator.
As Free42 is an open source project, you can find more
open source alternatives and stats
on LibHunt.
Cross-Platform Availability
Free42 is available on multiple platforms, including Windows, macOS, Linux, Android, and iOS, making it accessible to a wide range of users regardless of their operating system preference.
Emulation Accuracy
It is a high-fidelity emulator of the HP-42S calculator, ensuring that the behavior and functionality closely match the original calculator, which is beneficial for users familiar with the HP-42S.
Extended Functions
Provides additional features and improvements beyond the original HP-42S capabilities, such as larger memory capacity, more user-friendly interface elements, and additional settings.
Cost-Free
Free42 is available at no cost, making it an affordable option for users who require an advanced scientific calculator.
Open Source
The software is open-source, allowing users to contribute to its development or modify it to suit their specific needs, fostering a community of collaboration and innovation.
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Check the traffic stats of Free42 on SimilarWeb. The key metrics to look for are: monthly visits, average visit duration, pages per visit, and traffic by country. Moreoever, check the traffic sources. For example "Direct" traffic is a good sign.
Check the "Domain Rating" of Free42 on Ahrefs. The domain rating is a measure of the strength of a website's backlink profile on a scale from 0 to 100. It shows the strength of Free42's backlink profile compared to the other websites. In most cases a domain rating of 60+ is considered good and 70+ is considered very good.
Check the "Domain Authority" of Free42 on MOZ. A website's domain authority (DA) is a search engine ranking score that predicts how well a website will rank on search engine result pages (SERPs). It is based on a 100-point logarithmic scale, with higher scores corresponding to a greater likelihood of ranking. This is another useful metric to check if a website is good.
The latest comments about Free42 on Reddit. This can help you find out how popualr the product is and what people think about it.
I don’t know about this particular one, but many of these projects make use of Thomas Okken’s amazing Free42[1] which is a GPL-licensed emulator of a superset of the HP42S, which lots of RPN nerds consider the apex of that type of calculator. By superset I mean HP42S programs run entirely unaltered but it has 4 or 5 keywords added which are entirely in the spirit of the original and (in my opinion) feel... - Source: Hacker News / over 1 year ago
Seems great. How does this compare to Free42? https://thomasokken.com/free42/. - Source: Hacker News / over 1 year ago
My go-to recommendation for an RPN calculator is Free42 (https://thomasokken.com/free42/). It's available for Android, IOS, Mac, Windows, Linux. So you can use the same calculator everywhere. It emulates the real HP-42S calculator very closely, so if you happen to own a real HP-42S, you can switch back and forth without friction. If you don't want to pay the extortion prices for a used HP-42S on eBay, you can pick... Source: over 2 years ago
HP15C is amazing but so is the HP42 and HP35S, with the 42 in particular considered by some people to be the best scientific calculator ever made. I have an HP35S which is great. I also have a swiss micros DM42[1] which is an absolutely fantastic calculator based on the Free42[2] opensource emulator. It's much more powerful than the HP42 while remaining 100% compatible. The only downside is the keys are quite a... - Source: Hacker News / over 2 years ago
$275, swissmicros, SwissMicros DM42 w/ case. This is the best, most accurate dedicated handheld calculator on the market hands down. Runs Free42, which is an enhanced HP 42S calculator simulator app written by Thomas Okken. Paid retail bc early models had issues and I’ve been a good little boy and deserve a treat. Market is $150-200. Source: about 3 years ago
But then I found it was hard going from RPN to the “normal” way my iPhone calculator works. Now I have the Free42 app. No more confusion. https://thomasokken.com/free42/. Source: over 3 years ago
Have you seen Free42, "...a re-implementation of the HP-42S Scientific Programmable Calculator and HP-82240 Printer?" [0] It is available for Android, iOS, Windows, macOS, and Linux. (At one point there was even a version available on Windows Phone 8.) Perhaps it checks your boxes of good RPN calculator, available on all platforms. I don't know how much an HP-42S feels like a 41C. In any event, thank you for ralc.... - Source: Hacker News / about 4 years ago
And if you don't want to shell out the 10 bucks, there's also Free42 which is a complete re-implementation of the HP42 calculator. Source: over 4 years ago
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