Head-to-head · facts checked 15 Sept 2026
Conch AI vs Grammarly
Grammarly uniquely has 3 features · Conch AI uniquely has 1 feature.
From
$30/mo (Monthly Plan)
Free plan
Yes — daily credits included
From
$12/mo (Pro plan, billed annually)
Free plan
Yes
The verdict
Conch AI or Grammarly?
Section 01
Pricing, plan by plan
Every plan each vendor publishes, monthly and yearly where both are offered.
Conch AI
Limitless
$30/mo · $144/yr or $63/every 3 months
Grammarly
Free
$0/mo · $0/yr
Write without mistakes, see writing tone, 100 AI prompts/month
Pro
$30/mo · $144/yr
Full sentence rewrites, tone adjustment, plagiarism/AI detection, 2,000 AI prompts/month, 7-day free trial
Enterprise
Contact Sales
Unlimited members, dedicated support, BYOK encryption, data loss prevention, custom roles, unlimited AI prompts
Section 02
Pros and cons
From each tool's full review, written from the same checked facts.
Conch AI
Pros
- Bundles writing assistance, rewriting, study tools, and citation generation into a single platform, reducing the need for multiple subscriptions.
- Rewriting and paraphrasing tools help students revise drafts they have already written.
- Study tools including flashcard generation, mind mapping, and smart notes are genuine differentiators not found in most competing writing tools.
- Available across a Chrome extension and web app, including mobile browser support.
- ConchBib citation tool offers quick reference generation that some students find useful for academic work.
- Document chat feature allows users to interact with uploaded materials directly within the platform.
- Stealth Mode is an included feature that addresses a specific student use case.
Cons
- ConchBib citation tool can be hit-or-miss, sometimes producing inaccurate citations that require manual correction before submission.
- No plagiarism checker is included, which is a notable gap for a tool targeting academic users.
- No integrations beyond the Chrome extension and their own web app, limiting workflow flexibility.
- No confirmed public API, restricting developer or power-user extensibility.
- No SEO tools included, making the platform unsuitable for content marketers or professional writers.
- Stealth Mode, a tool built to help writing evade AI detectors, raises its own academic integrity concerns.
Grammarly
Pros
- Grammarly works across an impressive range of platforms including Chrome, Safari, Firefox, Edge, Windows, Mac, iOS, Android, Microsoft Word, and Google Docs.
- The plagiarism checker is built directly into the editor rather than being a separate export tool, a useful workflow for academic and content marketing use.
- Real-time grammar, spelling, and punctuation corrections remain reliable and are available even on the free plan.
- The Pro plan at $12/month billed annually unlocks full sentence rewrites, tone suggestions, and style clarity options at a competitive price point.
- Tone detection and brand voice features make it viable for enterprise teams managing content consistency across large organizations.
- Grammarly says it works across more than 500,000 apps and websites, making it one of the most broadly compatible writing tools.
Cons
- The free plan is significantly limited, though it does include tone detection and 100 AI prompts a month alongside basic grammar, spelling, and punctuation; most meaningful features still require a paid Pro subscription.
- Grammarly is now owned by Superhuman, which adds uncertainty about the product's long-term direction.
- Brand voice customization is heavily gated, with free users restricted to a single brand tone while unlimited options require an enterprise plan.
Side by side
| Company | ||
| Founded | 2022 | 2009 |
| HQ | United States | San Francisco, USA |
| AI model | Proprietary | Proprietary |
| User base | 2M+ registered users, 150K+ monthly active users | 40 million+ |
| Platforms | Web, Chrome Extension | Web, Windows, Mac, iOS, Android, Chrome, Safari, Firefox, Edge, MS Office, Google Docs |
| Languages | 11 | English primary, with fluency support for non-native English speakers |
| Pricing | ||
| Pricing model | Freemium | Freemium |
| Free plan | Yes — daily credits included | Yes |
| Free trial | No — no trial of a paid plan, but a permanent free daily-credit tier is available (plus a 7-day money-back guarantee on paid plans) | Yes — 7-day free trial for Pro |
| Starting price | $30/mo (Monthly Plan) | $12/mo (Pro plan, billed annually) |
| Enterprise | Custom — contact sales for volume licensing and team management | Custom |
| Refund policy | 7-day money-back guarantee | — |
| All plans | Limitless — $30/mo | Free — $0/mo Pro — $30/mo Enterprise — Contact Sales |
| Positioning | ||
| Best for | Students and academics seeking AI writing assistance, rewriting, and study tools | Individuals, teams, and enterprises seeking AI-powered writing assistance, grammar checking, and tone improvement |
| Differentiator | All-in-one student-focused AI suite combining writing rewriting, text simplification, flashcard generation, mindmaps, and smart notes in a single platform targeted at academics | The most widely adopted AI writing assistant, trusted by 40 million users and 50,000 organizations, offering real-time grammar, tone, plagiarism, and AI detection with enterprise-grade security and style guide enforcement. |
| Competitors | Jasper AI, QuillBot, Wordtune, Copy.ai, Grammarly | Hemingway Editor, ProWritingAid, QuillBot, Jasper, Copy.ai, Writer |
| Features | ||
| AI Copywriting | ✓ | ✓ |
| AI Research | ✓ | ✕ |
| Brand Voice | Basic — tone and clarity optimization | Deep — brand tones (1 on Free, unlimited on Enterprise), style guide, knowledge share, snippets |
| Bulk Generation | — | ✕ |
| Content Editor | ✓ | ✓ |
| Grammar Style | ✕ | ✓ |
| Image Generation | ✕ | ✕ |
| Long Form Writing | ✓ | ✓ |
| Paraphrasing | ✓ | ✓ |
| Plagiarism Checker | No | Built-in — available on Pro and Enterprise plans |
| SEO Optimization | ✕ | ✕ |
| Short Form Writing | ✓ | ✓ |
| Templates | — | ✕ |
| Integrations | ||
| API Access | ✕ | ✓ |
| Chrome Extension | ✓ | ✓ |
| CMS | ✕ | — |
| Google Docs | — | ✓ |
| Key Integrations | Chrome Extension, web app | Google Docs, Microsoft Office (Word), Chrome, Safari, Firefox, Edge, Windows desktop app, Mac desktop app, iPhone, iPad, Android, Zendesk (shown in marketing) |
| Wordpress | ✕ | ✕ |
Section 03
Conch AI vs Grammarly: common questions
Is Conch AI or Grammarly cheaper?
Conch AI's cheapest paid plan is $30/mo (Monthly Plan) and Grammarly's is $12/mo (Pro plan, billed annually). Compare what each plan includes below before going on price alone.
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