Writing tools

Best Novel Writing Apps for Multilingual Writers (2026)

Best Novel Writing Apps for Multilingual Writers (2026)
Team GrinTale · Published on 30/07/2026 · 14 min read

Most "best novel writing app" roundups quietly assume you write in one language and always will. If you write in two, if you're drafting in your second language, or if you switch depending on the project, that assumption starts costing you time: an interface stuck in the wrong language, a spellchecker that reverts every time you reopen a file, a dictionary panel that only understands English.

This comparison looks at that specific angle: not "which tool is the most powerful," but which of these seven actually holds up once more than one language is involved. We checked GrinTale, Bibisco, Scrivener, Ulysses, Word, Google Docs, yWriter, and Atticus, with every price and feature verified at the source.

In short

  • GrinTale: €29/year, built multilingual from day one (Italian, English, French, German), switch the whole interface anytime, dictionary and encyclopedia panels follow whatever language you're writing in

  • Bibisco: free (or $69 one-time), translated into 15 languages, but built by a single Italian developer with English as one of many added languages

  • Scrivener: $59.99, interface language and spelling-check language are two separate settings, and the spelling-check choice doesn't reliably persist across sessions

  • Ulysses: €39.99/year, interface in roughly 20 languages, but its built-in grammar and style checker only covers about 10 of them

  • Word (Microsoft 365): €99/year (Microsoft 365 Personal), lets you tag different words, selections, or paragraphs with different proofing languages in the same document, the most flexible option here for genuinely mixed-language text

  • Google Docs: free, same per-selection language tagging as Word

  • yWriter: free, community-translated into several languages with no evidence of per-project multi-language handling

  • Atticus: $147 one-time, English-only interface

Why "supports many languages" isn't the same as "built for switching between them"

A tool can ship in fifteen interface languages and still assume you only ever use one of them at a time. Three things matter more than the raw language count:

Whether the interface itself can switch, and stay switched. Some tools let you pick an interface language once, in a settings menu, and that's it for every project you ever open. Others let you change it per project, or even keep writing in one language while your notes and character sheets sit in another.

Whether spelling and grammar checking travels with you. If you draft a chapter in French and the next one in English, does the tool notice, or does it flag every French word as a typo until you manually reset the dictionary, possibly every time you reopen the file?

Who actually built the localization. A tool translated once, years ago, by volunteers tends to show its age in exactly the corners where a native speaker would have caught the phrasing. A tool built multilingual from the start tends not to have that problem, because there was never an "original" language to translate away from.

What a good multilingual writing setup actually needs

Before the comparison itself, here's what we're checking for across all seven tools:

The seven apps, side by side

(Full sources for every line are listed in the SOURCES section at the bottom of the page.)

GrinTale: multilingual by design, not by translation

GrinTale launched in four languages at once, Italian, English, French, and German, not as a feature bolted on after the fact (GrinTale, 2026). That difference shows up in two specific places: how the interface handles switching, and what happens inside the editor while you write.

An interface built to switch, not just to translate

Change your interface language at any time, from Settings, and everything shifts with it, menus, labels, and the two research panels described below. There's no "original" language underneath that the rest was translated from, which is exactly what avoids the stale, half-updated corners you find in tools translated once and left alone.

A dictionary and encyclopedia that follow your language, inside the editor

Two research panels sit a click away while you write: a dictionary and an encyclopedia, both queried in whichever language your interface is currently set to. Switch your interface from English to French and the same panels start answering in French, without leaving the editor to open another tab. None of the other six tools in this comparison ship anything equivalent built into the writing environment itself.

One price, in euros, everywhere

15 days free, no credit card required, then €29/year at the current launch price (about $2.50/month depending on the exchange rate that week). No separate US pricing tier, no regional currency switch to track at renewal.

Bibisco: broad language coverage, one developer behind it

Bibisco is built by Andrea Feccomandi, a software engineer based in Bologna, Italy: the first line of code dates back to September 2012, with version 1.0 released in 2014 (bibisco, About, 2026). It ships in 15 languages, English included, and the Community edition is free with no project limit; the Supporters edition costs $69 one-time and unlocks additional tools, with two years of updates included (bibisco, Novel Writing Software Download, 2026). Over 150,000 writers have downloaded it (bibisco, About, 2026).

The limit is the same one that affects most tools on this list: no dedicated grammar checker in any language, only the operating system's spellcheck, and syncing between devices requires the separate Bibisco Everywhere subscription ($29.99/year).

Pick it if you want a free, carefully maintained tool where English is simply one of many supported languages rather than the assumed default.

Scrivener: two separate language settings, and one of them doesn't stick

Scrivener, the UK-based Literature & Latte's flagship, lets you set its interface language independently from Preferences (Literature & Latte Forums, 2026). Spelling-check language is a separate setting entirely, chosen under Edit > Spelling and Grammar, and according to reports on the company's own user forum, that choice can reset back to English each time a project is closed and reopened (Literature & Latte Forums, 2026).

It costs $59.99 for macOS or Windows individually, $95.98 for the bundle of both, plus $23.99 for the iOS app (Literature & Latte, 2026), all in US dollars.

It remains the deepest structural tool on this list, binder, compile engine, chapter organization. If you mostly write in one language per project and structure matters more than language-switching convenience, it still holds up well.

Ulysses: built-in grammar checking, but only for about 10 languages

Ulysses, developed by the Leipzig, Germany-based Ulysses GmbH & Co. KG (Ulysses, Imprint, 2026), includes a grammar and style checker powered by LanguageTool, covering roughly 10 of its localized languages including English, German, French, and Italian (Ulysses, Grammar and Style Check, 2026). Its interface itself ships in more languages than that, over 20 by some counts, but the grammar checker doesn't reach all of them.

It runs only on Mac, iPad, and iPhone, with automatic sync via iCloud (Ulysses, Pricing, 2026), and costs €39.99/year, or €5.99/month, already priced in euros. Writers who need Windows or Android are excluded outright.

Pick it if you write only on Apple devices and want a built-in grammar checker in one of its supported languages, not just a spellchecker.

Word and Google Docs: the most flexible option for mixed-language text, with none of the novel structure

Worth including for one specific reason: on the narrow question of handling more than one language inside a single document, both are genuinely stronger than any of the dedicated novel-writing tools on this list. Microsoft Editor covers spelling suggestions in over 80 languages and grammar suggestions in more than 20, and both Word and Google Docs let you tag individual words, selections, or whole paragraphs with a specific proofing language, so a French quote inside an English chapter gets checked as French rather than flagged as a typo (Microsoft, Microsoft 365 plans and pricing, 2026). Microsoft 365 Personal costs €99/year.

That flexibility comes at the obvious cost: no chapters, no characters, no structure of any kind, just continuous text however well-proofed. We cover that trade-off in more depth in a dedicated article.

Choose Word or Google Docs if your project genuinely mixes languages sentence by sentence and you haven't committed to structuring a full novel yet.

yWriter and Atticus: two tools where the multilingual case is weaker

yWriter, the free tool from Australian developer Simon Haynes, has translation files contributed by volunteer users over the years, some of them incomplete because newer features were added after the last full translation pass (Spacejock Software, Languages FAQ, 2026). There's no indication it handles per-project language switching any differently than picking one interface language and sticking with it.

Atticus ships in English only, with no other interface languages found on its own site or documentation (Atticus, 2026). If multilingual support matters to you at all, it's not a contender.

How to actually choose

If you're starting a project now and expect to switch languages, or write in more than one from the start, GrinTale and Word/Google Docs are the two ends of a real trade-off: GrinTale gives you novel structure with an interface and research tools that switch cleanly, Word or Google Docs give you the most granular per-word language tagging with no structure at all.

If you mostly write in one language per project but want the option to pick from a wide list, Bibisco is free and covers 15 of them. If built-in grammar checking in a second language matters more than structure or price, and you're on Apple hardware, Ulysses is the only tool here that checks grammar (not just spelling) in roughly 10 languages out of the box.

Scrivener stays the right call if structural depth matters more than fluid language switching. yWriter if budget is the only constraint. Atticus only if English is your only language and KDP layout is the priority.

Try it free for 15 days. No card required.

Start your trial →

If you decide to stay, the subscription is €29/year at the current launch price. Cancel anytime from Settings.

Frequently asked questions

What's the best novel writing app if I write in more than one language?

It depends on what "handling" a second language means to you. If you want the whole app, including research tools, to follow whichever language you're writing in, GrinTale. If you want the most flexible per-word language tagging with no novel structure at all, Word or Google Docs. If you need built-in grammar checking (not just spellcheck) in a second language on Apple hardware, Ulysses.

Does Scrivener support multiple languages in the same project?

Its interface language and its spelling-check language are two separate settings, changed in different places. According to reports on Literature & Latte's own forum, the spelling-check language choice for a project can reset back to English each time the project is reopened, which is worth knowing if you alternate languages within one manuscript.

Can I switch GrinTale's interface language mid-project without losing anything?

Yes. Nothing in your project changes when you switch, only the interface language and the language the built-in dictionary and encyclopedia panels respond in.

Which tool has a built-in grammar checker, not just spellcheck, in more than one language?

Ulysses, via a LanguageTool-based checker covering about 10 of its languages including English, German, French, and Italian. Word's Microsoft Editor goes further on languages (grammar suggestions in over 20), but it's a general-purpose document tool, not a dedicated novel-writing environment.

Is Bibisco a good option if English isn't my first language?

Yes. It ships in 15 languages with no single language treated as the default, and it's free in its Community edition. The trade-off is no dedicated grammar checker in any of them, and no built-in device sync unless you add the separate Bibisco Everywhere subscription.

Do I have to pick just one of these to try?

No, and trying more than one is the most honest way to find out which one disappears under your hands. GrinTale is the fastest to test in practice, in the browser, 15 days, no credit card; the others require an install (Bibisco, yWriter), Apple hardware (Ulysses), or a one-time purchase you commit to on first real use (Atticus). For more on GrinTale specifically, including more technical questions, see the full FAQ page.

In short

Seven tools, seven different relationships with more than one language. Bibisco spreads itself across 15 languages with no single default. Ulysses checks grammar, not just spelling, in about 10 of them, but only on Apple hardware. Scrivener keeps interface and spellcheck languages separate, with one of them prone to resetting. Word and Google Docs proofread mixed-language text better than anything else here, at the cost of any novel structure at all.

GrinTale's answer sits in the gap the others leave open: an interface and a dictionary and encyclopedia that switch with you, built multilingual from the first day rather than translated into that shape later, novel structure included, one price in euros. It's not the universally right choice, that depends on how you actually write and in how many languages: but if you want to try it, 15 days of GrinTale cost nothing, not even a card number.

SOURCES

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