I think most of the comments on the download page for today's GOTD are a bit overblown. We're in an age where grammar doesn't matter much. Despite a preponderance of spell checkers, errors are common, from pro journalists no less. And I'm not at all sure proof reading still carries any meaning. Rather than Microsoft's Office simply dominating business, there's more & more real competition between MS & Google to provide office apps in the cloud. More & more we just don't need the big, old, bulky office suites anymore.
Some will likely object to what seems a more cavalier attitude on the subject, but popular design has changed -- I'll let you decide if it's for the better. Popular design doesn't mean it's better -- it means it's what more people expect, including would-be readers, viewers, clients, & bosses. What people expect they'll accept -- what they don't expect they can tend to discard. That's why so many popular TV shows & novels are so predictable.
DTP [DeskTop Publishing] is to a large extent dead, & what remains is dying. I know we've gone from 3 - 4 printers to one, & I use that most often for printing coupons to keep the ink nozzles from drying/clogging up. And I'm a DTP junkie [one who likes to think he's make it through withdrawal]. Justified type -- What's that? No need to ask about terms like kerning. Why worry about using an en or em dash when "--" is acceptable, even in print. The main advantage of an actual newspaper seems the things you can use the paper for -- the advantage of a real book is apparent if/when you fall asleep reading, & drop it -- a magazine is nice because there are just some places you don't like to carry a tablet.
Against that backdrop then, Atlantis strikes me as something in between. Appearance wise I'd likely use Ashampoo or Kingsoft first -- feature wise I'd fire up Word or Wordperfect -- mobile wise I'd use Word &/or Google Docs on-line [either does OK with my Android tab]. To me the GUI is too busy to replace notepad &/or notepad clones with added features. OTOH I'd prefer it to the word processor in Libre Office, but that may be because from the first Open Office that started it all, I never felt comfortable with the Open/Libre Ofc word processing app after spending years using office suites from the old big 3 [MS, WP, & Lotus]. That said I'll likely set Atlantis aside with my portable app collection in case it's ever needed or handy.
NOT that there's anything really wrong with the Atlantis Word Processor... Its problem is that it's just not extraordinary in any way that matters. The best word processor is the one *You* like best. :) So if you like it -- & there's no reason not to really -- go with it & enjoy. Several people seemed to think it was notable that Atlantis had missing or less capable features when it came to graphics, images, & tables -- features increasingly likely to be not used nor missed, in any word processing app, include graphics, images, & tables. :) I'm not saying *You* won't ever use them -- just that fewer & fewer people use that stuff in *Any* word processing app. In this case probably the best thing to do is install the Atlantis Word Processor to a USB stick -- the default location if you have one plugged in when you run setup -- & run it to see if what you require is in there.
I will add a potential disclaimer... The dev [or devs] behind Atlantis may be unusually generous, or suffering low sales, or naive. If sales are really low I'm not sure I'd make it my Go-To app in case they folded entirely, meaning no future support nor updates. If they're naive they might not fully realize that the free version of their app is now in the wild, forever, and if they later became angry about it, either go away or try to cripple those copies. IOW if you like Atlantis by all means use it, but I'm not sure I'd uninstall that copy of Word or Wordperfect just yet.
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On portability -- having a portable word processor matters less than it does with any other type of software that can be made portable.
One, advantage of portable software is that it doesn't muck with the OS, in most cases Windows. If you've got 13 video converters, 4 editors, a dozen image editing apps etc. that potential matters a lot more than with the usually one word processor you'll get to know well & use near 100% of the time.
Two, portable software can be used on any system, *Assuming* that system's set up to allow you to use your USB stick or CD/DVD or whatever media. If you've got more than one at home, or if you trust & use a friend's PC/laptop, that's cool. Today, having a publicly available PC that allows you to use & run your own software is basically insane. Letting you use your own USB stick is incredibly stupid. And personally, if I found a public PC that let me plug in my USB stick, after I plugged it in & used it, I'd throw it away -- it can be Very difficult to determine what changes may have been made to that USB stick, including in firmware. AV software will not usually stop the process of adding new hardware, like say a printer, so by the time you can run an AV scan it may already be too late.
Three, unlike most types of software, office apps from Microsoft & Google are available online, so all you have to do is log-in from anywhere, & you can use your cell or tablet. You can use a public PC or one belonging to a friend, open &/or save your work on-line, with nothing to carry, & probably nothing bad that could be transferred to your PC/laptop when next you logged in. There is risk however of your log-in or any sensitive data being captured, either by software on whatever PC you used &/or if the network is not trustworthy/secure.
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On design today...
The easiest way to see what's in fashion is to look around at what's being done. That's why I say concerns about word processors designed chiefly for print are for the most part overblown.
With the exception of those magazines & such still in print [and most are transitioning on-line, as they figure out how to pay the bills that way], most niceties of print publishing have been lost, while production values across all mass media [with the exception of high budget films] have slipped. People have become well trained to have lower expectations, so you can very easily get away with it. :) Content is king/queen, & we're not so picky how it's presented to us, whether it's poorest quality on YouTube or 4k from Netflix. That said, 4k video is itself a sort of backlash, maybe the current peak of saying presentation can be more important than what's presented. Maybe someday that'll translate to published words, but as they say: "That day is not today". And until then, by & large your readers won't notice if you used every feature in Word to make your type & layout look better.
And as the intricacies of printing text & such on paper are becoming a lost art, many features, that might in the past have defined one app as being way above the others, don't really matter to 99% + of users. How many people are interested in tweaking spacing between characters nowadays? It only made/makes sense to the extent that you can control what's seen by everyone viewing your work. With a printed sheet of paper that was/is easy -- with a world full of different screen sizes with different aspect ratios & resolutions, not so much.
That means that when you're going to publish something you have to decide what your target audiences are, and whether it makes better sense to invest the resources producing the same content in more formats or fewer. If you hope to make money off it, most of the time you select fewer because it's cheaper. You produce content that can be re-used in print or on-line or on TV with minimal effort, because that = minimum costs. That means much fewer people tweaking print than in the past, & when it's tweaked at all, default software settings & functions are used more often than not.
Some types of information are clearer when you have them in a table -- you just have to create multiple versions or accept that they will be useless on many screens. You can't say the same thing about columns or flowing text, whether you're flowing those words around images/illustrations or from one text box to another. Columns & flowing text are/were good for visual attention & interest, & they're handy when you're dividing a page into blocks to fill with a variety of articles & advertisements, e.g. your local newspaper. In that case everything on the first one or more pages of each section is an advertisement, either selling someone's goods &/or services or selling an article itself -- if the headline, optional image/graphic, & 1st paragraph(s) don't sell you, you're not going to read the article. And you want people to read the articles or they'll not regularly buy your paper or magazine.
That basic design principle, dividing everything up into blocks, is widely used, including on web pages & with screens of all sizes, but the blocks are larger as the whole thing's toned down quite a bit from the newspaper model for greater clarity -- any flowing text is pretty much gone. The emphasis is on being able to fill those blocks with anything, whether articles from your database or ads from whatever service etc., as well as being able to rearrange those blocks at will -- software can measure viewer interaction & interest, finding the optimal arrangement. There's simply so much information available from so many sources that viewer/reader attention is *Extremely Budgeted* -- if you don't have the clarity that allows someone to see everything in a single glance, they're most often gone, immediately, assuming [probably correctly] that they'll see the same, or at least similar content elsewhere.
The moral of the story?... Design with the cell/tablet user in mind -- use what attracts them, e.g. simpler & brighter with higher contrast. Embellish that for viewing on-line with a PC/laptop/tablet. Keep copies of all artwork & images at higher resolutions so you can expand your effort to print, should you decide to. Don't forget the very basics of publishing but use them in simpler ways, e.g. since you don't have room for a page layout inviting readers inside, asking them continue reading or to flip open the cover, do that with your artwork. Before subtle was good -- now, in your face isn't that bad.