Comparison

Acadly AI vs Grammarly

A general-purpose grammar and writing assistant with a new AI Humanizer and Authorship detector — versus a dedicated academic workspace built for the full paper.

ACADLY AIVS GRAMMARLYAcadly AI vs Grammarly
Acadly AI

Acadly AI is built specifically for students and researchers. It drafts structured papers (Abstract → Conclusion), generates editable PPTX slide decks from your draft, builds 16 publication-ready chart types, and runs grammar, paraphrase, humanizer, AI detector, plagiarism checker, and document chat in one workspace. Pro is $17.99/mo monthly or $11.92/mo annual.

Grammarly

Grammarly is the most widely used general-purpose writing assistant, with deep browser, Word, Google Docs, and Slack integrations. Grammarly Pro now ships AI Humanizer, Authorship (Grammarly's AI-content detector), tone adjustments, and plagiarism checking. Grammarly Pro is $30/mo monthly, $20/mo quarterly, or $12/mo on the annual plan ($144/yr). Grammarly does not draft structured academic papers, generate slide decks, or build charts.

Feature matrix

Side by side

Each cell reflects publicly available information. Where a feature varies by plan or is not publicly documented, the cell is marked as such.

AI drafting with structured sections
YesAbstract, Introduction, Methodology, Results, Discussion, Conclusion with citation placeholders.
PartialGenerative AI prompts (2,000/mo on Pro) for short content, not structured paper sections with citation placeholders.
Citation formats (APA 7, MLA 9, Chicago, IEEE)
YesAPA 7 on Free. MLA 9 and Chicago on Pro. IEEE on Premium.
NoCitation formatting is not a core Grammarly feature.
Slide and deck generator
YesEditable PPTX with native shapes. 22 slide templates.
NoNot offered.
Chart and figure builder
Yes16 chart types, high-DPR PNG and vector SVG export.
NoNot offered.
Grammar checker
YesClarity, Conciseness, Voice, Readability scores with severity-tagged suggestions.
YesThe flagship feature. Grammarly's grammar engine is the broadest, deepest, and best-integrated on the market.
Paraphraser with multiple modes
YesStandard, Academic, Formal, Simple, Creative, Shorten, Expand, Fluent — 8 modes.
YesTone and rewrite suggestions inside the editor.
AI humanizer
Yes4 tone presets (Casual, Professional, Academic, plus a creative variant).
YesGrammarly AI Humanizer launched as part of Pro. Comparable to dedicated humanizer tools.
AI detector
YesSentence-level AI probability with suspicious span list.
YesAuthorship feature classifies text as human-written, AI-generated, AI-modified, AI-edited, or pasted.
Plagiarism checker
YesPlagiarism and originality gauges with matched sources.
YesPlagiarism check bundled in Premium / Pro.
Document chat and PDF Q&A
YesPDF, DOCX, TXT, Markdown. 15 MB / 100 pages on Free · 50 MB / 300 pages on Pro · 200 MB / 1,000 pages on Premium.
NoNot offered as a grounded PDF chat.
Template library
Yes7 of 22 slide templates on Free · 18 of 22 on Pro · all 22 on Premium. 6 of 16 chart types on Free, 12 on Pro, all 16 on Premium. APA paper format on Free, MLA + Chicago added on Pro, IEEE added on Premium.
NoBrand-tone templates for teams. No slide, chart, or paper-format templates.
Generation history
YesUnlimited searchable history on Pro and Premium, 30-day history on Free.
PartialDocument history inside the Grammarly editor. No cross-tool generation log.
Exports (PDF, PNG, PPTX, DOCX, LaTeX, SVG, CSV, XLSX)
YesPDF + PNG on Free. All 8 formats on Pro and Premium. Every tier exports clean, unwatermarked files.
PartialEdits delivered in-browser, in-Word, or in-Google-Docs. No PPTX, SVG, CSV, XLSX, or LaTeX export.
Free tier
YesEvery feature unlocked with monthly quotas. 5 papers, 5 decks, 3 PDF chats, 10 grammar, 10 paraphrase, 5 humanizer, 5 detector, 3 plagiarism per month.
YesGenerous free grammar checking. Premium AI features (Humanizer, Authorship, plagiarism) require Pro.
Starting paid price
Yes$17.99/mo (Pro) or $11.92/mo billed annually. Premium $27.99/mo or $18.58/mo annual.
YesPro $30/mo monthly, $20/mo quarterly, $12/mo billed annually ($144/yr).

Pick Acadly AI when

  • You write research papers, not blog posts or business email — you need structured section drafting with citation placeholders.
  • You build slide decks and figures from your paper, not just polish existing prose.
  • You want grammar, paraphrase, humanizer, AI detector, and plagiarism in one academic workspace at $17.99/mo instead of stacking Grammarly Pro ($30/mo) on top of separate tools for slides and figures.
  • You need editable PPTX export, vector SVG charts, or native LaTeX output that Grammarly does not provide.

Pick Grammarly when

  • You write across many surfaces — email, docs, browser, Slack — and want a single grammar engine deeply integrated everywhere you type.
  • You already pay for Grammarly and your work is mostly editing existing prose rather than drafting whole papers.
  • You need brand-voice tone tuning across a team, which is a Grammarly Business strength.

Credibility matters. We list scenarios where Grammarly fits better because conceding an honest tradeoff is more useful than pretending we win every fight.

From the blog

Further reading

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Frequently asked

Is Acadly AI a good Grammarly alternative for students and researchers?

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Yes — for academic writing specifically. Acadly AI's Grammar Checker scores Clarity, Conciseness, Voice, and Readability tuned for scholarly prose, and it is bundled with structured paper drafting, slide generation, charts, AI Humanizer, AI Detector, and Plagiarism Checker at $17.99/mo. Grammarly is broader (every surface where you type) but does not draft papers or build slides/figures.

How does Acadly AI's Humanizer compare to Grammarly's AI Humanizer?

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Both rewrite AI-sounding prose. Acadly AI's Humanizer ships 4 tone presets (Casual, Professional, Academic, plus a creative variant) tuned around the same perplexity/burstiness signals that detectors look for. Grammarly's Humanizer is integrated into the broader Grammarly editor. Quality varies by use case; the Acadly AI version pairs naturally with the bundled AI Detector for a check-rewrite-recheck loop.

Does Acadly AI work inside Microsoft Word like Grammarly does?

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Not today. Acadly AI is web-based — you generate, edit, and export in the dashboard, then download DOCX/PPTX/PDF/LaTeX. If you need in-Word real-time editing as your primary surface, Grammarly's Word add-in is unmatched. If you need to draft and export, Acadly AI is more direct.

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Acadly AI vs QuillBot

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Acadly AI vs GPTZero

A dedicated AI detector, versus a workspace that detects AI spans and rewrites them in the same flow.

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Acadly AI vs Copyleaks

A plagiarism and AI detection suite priced for enterprise, versus a per-author workspace that bundles both for less.

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Acadly AI vs Gamma

An AI slide generator priced by credits, versus an academic research workspace whose slides share a source with the paper.

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Acadly AI vs Paperguide

Two all-in-one academic AI workspaces — one focused on references and reading, one focused on the full draft-to-defense pipeline.

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Acadly AI vs Scribbr

A pay-per-document plagiarism checker and citation generator, versus a monthly academic workspace where every check, draft, and rewrite is bundled.

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Acadly AI vs Turnitin

An institutional plagiarism and AI-detection platform educators run student work through, versus a self-serve workspace where you check (and fix) your own draft before submission.

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Try Acadly AI free

Draft papers, build slides, design charts, and check submission safety in one workspace. No credit card required on the Free plan.

Feature comparison based on publicly available information as of 2026-04-24. Plans, pricing, and features may change. If you find an error, contact us and we will correct it.