Skip to content
Plans

Write in English without losing your voice.

One workspace replaces translation, grammar, paraphrasing, citations, and originality subscriptions. Upgrade or downgrade anytime.

Spark

For coursework, freelancing, and steady weekly writing.

Smart AI
$15.83 / month
$190 billed yearly Save $38/year
Get Started with Spark
EVERYTHING IN FREE, PLUS:
  • Translation: 50,000 words / month (Smart tier)
  • Grammar: 100,000 words / month
  • Paraphrase: 25,000 words / month, all modes except plagiarism-safe
  • Cowriter: 200 messages / month (Ask + Edit)
  • Research: 100 PDF pages, 100 library and web questions / month
  • Plagiarism: preview 50 / month; full scans via page packs
  • Documents: unlimited
  • Export: 50 / month

Max

For research labs, enterprise teams, and unrestricted power users.

Native AI
$65.83 / month
$790 billed yearly Save $158/year
Get Started with Max
EVERYTHING IN PRO, PLUS:
  • 20x the Pro quota on every meter
  • Translation: 2,000,000 words / month
  • Grammar: 4,000,000 words / month
  • Paraphrase: 1,000,000 words / month
  • Cowriter: 10,000 messages / month
  • Research: 20,000 PDF pages, 600 deep reports / month
  • Plagiarism: preview 20 / day; full scans via page packs
  • Documents and export: unlimited

Free

Fluent AI

Explore the workflow on generous starter limits.

$0 Free forever
STARTER LIMITS INCLUDED:
  • Translation: 5,000 words / month (Fluent tier)
  • Grammar: 20,000 words / month
  • Paraphrase: 300 words / day
  • Cowriter: 5 messages / day
  • Autocomplete: 15 suggestions / day
  • Plagiarism: similarity preview 3 / month
  • Documents: 25
  • Export: 10 / month
Generous starter limits for getting started. Start Free

Monthly writing stack

7 subscriptions

ESL graduate student · one thesis chapter a month

$98.71 per month
  • Jenni AI — Pro · Academic drafting, autocomplete
    $29.00
  • Yomu AI — Pro · Citations, chat with your PDFs
    $19.00
  • Grammarly — Pro · Grammar and tone as you type
    $13.00
  • Undetectable AI · Humanizing before you submit
    $9.99
  • Quetext — Premium · Plagiarism check before you hand it in
    $9.99
  • Consensus — Premium · Finding and reading the literature
    $8.99
  • DeepL Pro — Starter · Thinking in your language, publishing in English
    $8.74
Diglot Pro replaces all 7
Everything above in one bilingual workspace · $29/mo
Save $69.71/mo
FULL VERIFICATION SCANS

Plagiarism scans are not tied to subscriptions

Every plan includes unlimited similarity previews and AI detection. Full 250-word page scans are purchased once in packs that never expire for a full year — pay only for what you run.

100 pages

~ $0.12 / p
$12 one-time

Valid for 1 full year. Oldest pages consumed first on full similarity scans.

Available in editor

1,000 pages

~ $0.09 / p
$89 one-time

Valid for 1 full year. Oldest pages consumed first on full similarity scans.

Available in editor
14-Day Refund
Fair, no-questions refund policy
Cancel Anytime
1-click cancellation in settings
Bank-Grade Security
256-bit encrypted checkout
Instant Activation
Limits unlock immediately
Why Choose Diglot

Built specifically for high-stakes bilingual writing

The stack above costs $98.71 a month and none of its parts know about each other.

Dual-Language Native Routing

Unlike generic translators that flatten your nuance, Diglot preserves your academic tone and personal writing voice across languages.

Seven Subscriptions Replaced with One

Translation, rewriting, grammar, citations and research in a single workspace that shares one document — instead of seven tools that each see only their own tab.

Publication Ready

Built for ESL researchers and authors submitting to journals, grants and publishers. Similarity preview and AI detection are in every plan; full plagiarism scans are page packs you buy separately.

Context-Aware Long Form Documents

Upload full PDF papers and Word manuscripts up to 100+ pages. Diglot understands whole-document context and structure.

Loved by 16,000+ Researchers & Writers

Real stories from international authors

See how researchers, engineers, and bilingual authors publish with confidence.

PUBLISHED AUTHOR

“Diglot helped me polish and publish our team paper in Nature Communications. The dual-language routing translates complex scientific concepts without sounding like machine output.”

ER
Dr. Elena Rostova
Postdoc Researcher in BioMed · Max Planck Institute
REPLACED 3 TOOLS

“I cancelled my DeepL Pro, QuillBot, and Grammarly Premium subscriptions. Diglot replaces all of them in one clean workspace, saving me at least 6 hours of editing every week.”

MV
Marcus Vance
Staff Engineer & Technical Author · Berlin
PHD DISSERTATION

“The plagiarism-safe paraphrasing and citation synthesis are game changers for non-native English speakers. My dissertation defense preparation was completely stress-free.”

CW
Chen Wei
PhD Candidate in Computer Science · EPFL
FEATUREFreeSparkPro POPULARMax
Translation5k words / mo50k words / mo100k words / mo2M words / mo
Paraphrase300 words / day25k words / mo50k words / mo1M words / mo
Synonyms & VocabularyBasic suggestionsContext-aware synonymsAcademic registers & nuanceFull academic nuance
AI Autocomplete15 suggestions / dayUnlimitedUnlimited (Context-aware)Unlimited (Priority)
Cowriter & Skills5 msgs / day200 msgs / mo500 msgs / mo10k msgs / mo
Draft Generation10 drafts / mo30 drafts / moUnlimited
Chat with Documents & PDFs1 document (basic)100 PDF pages / mo1,000 PDF pages / mo20,000 PDF pages / mo
200M+ Papers SearchFree searchSearch + 100 library queriesSearch + unlimited queriesPriority scholarly queries
Citations & ReferencesManual formattingAuto citations (BibTeX, APA, etc.)Full synthesis & reference syncFull synthesis & reference sync
Personal GlossaryUp to 20 termsUnlimited termsUnlimited + domain templatesUnlimited + team sync
Protected Document SharingPublic read-only linksPassword-protected linksProtected links + expiry + analyticsEnterprise access controls
Plagiarism ScansPreview onlyPreview 50 / mo · packsPreview 20 / day · packsPreview 20 / day · packs
Documents Storage25UnlimitedUnlimitedUnlimited
Export (PDF, DOCX, LaTeX)PDF, DOCX (basic)All + academic & LaTeXAll + custom branding
Desktop AppIncludedIncluded
Vocabulary Learning AppComing soonComing soon (Included)Coming soon (Included)Coming soon (Included)
Browser ExtensionComing soonComing soon (Included)Coming soon (Included)Coming soon (Included)
AI Quality TiersFluentFluent + SmartAll tiersAll tiers + dedicated
API AccessIncludedDedicated API
Zero-Risk Guarantee

Common questions & peace of mind

Everything you need to know about our data security, subscription terms, and guarantees.

Is my research and draft data secure?

Yes. Your documents and drafts are never used to train public AI models. All data is encrypted in transit (TLS 1.3) and at rest (AES-256) with strict SOC2/GDPR compliance.

Can I cancel or switch plans anytime?

Absolutely. You can upgrade, downgrade, or cancel your subscription with a single click right from your settings. No dark patterns, no mandatory phone calls, no hassle.

What if Diglot doesn’t fit my writing workflow?

We offer a 14-day money-back guarantee. If Diglot does not elevate your writing or save you hours of work, simply message our support team for a prompt, courteous refund.

Why not just use ChatGPT or DeepL free tiers?

General chatbots lack citation management, long-form document coherence, academic tone memory, and plagiarism protection. Diglot is tailor-built for professional bilingual authors.

Questions

Everything you need to know about our plans, billing, and trial limits.

Can I cancel whenever I want?

Yes. You manage subscription through the billing provider that handled your payment. When the portal is connected, you will see renewal date, invoices, and a cancel button there.

What happens to my documents if I stay on Free?

Your documents stay yours. Free includes up to 25 documents; Spark and Pro unlock unlimited storage (Pro also adds version history).

When should I pick Spark vs Pro?

Spark is ideal for regular essays and client work with strong limits. Pro adds Native-tier AI quality, plagiarism-safe paraphrase, deeper Cowriter limits, academic export, desktop app, and API access.

What do Fluent, Smart, and Native mean?

They are quality tiers for AI modules — from fast open models (Fluent) to premium mid-tier (Smart) and flagship routing (Native). Higher tiers keep nuance for academic and professional English.

Do I pay extra for plagiarism scans?

Spark and Pro include similarity previews each month. Full 250-word page scans are purchased once in page packs that never expire for a full year ($12 for 100 pages, $39 for 400, $89 for 1000). Free only shows preview similarity.

How does annual billing work?

Annual is billed once per year at the total shown ($190/yr for Spark, $290/yr for Pro, $790/yr for Max). We display an effective monthly price so you can compare plans fairly.

Can I move from Spark to Pro later?

Yes. Upgrades go through checkout; your workspace and documents stay in place, and higher limits apply immediately after the new subscription is active.

What if I downgrade to Free?

You keep your documents within Free limits. If you are above a limit after downgrading, export or archive what you need first — support can help if you are unsure.

Do you offer teams, invoicing, or schools?

Not as self-serve checkout yet. Email us at [email protected] with seats, VAT invoices, or department needs and we will point you to the right option.

Write in your language,
publish in English

Move from rough bilingual drafts to clearer English in one connected writing workflow.

Start for free

*No credit card required