Grammarly

Grammarly Inc.

Overall Score / 10

vsDifferent jobs — depends on your workflow

Jasper

Jasper AI Inc.

6.2

Overall Score / 10

Our Verdict

Different jobs — depends on your workflow

Choose Grammarly if:

—Anyone wanting grammar and style checking everywhere they write
—Business teams needing consistent brand voice across communications
—Non-native English speakers improving their writing

Choose Jasper if:

—Marketing teams needing brand-consistent AI content
—Enterprise content operations with style guides and brand voice
—Teams producing high-volume marketing copy

The biggest difference: Grammarly is an inline writing assistant that checks grammar, tone, and clarity everywhere you type. Jasper generates marketing content from scratch with brand voice control and campaign workflows.

Side-by-Side Comparison

Criteria	Grammarly	Jasper
Cheapest Paid Plan	$30/mo (Pro)Source: Grammarly Inc. pricing page →	$49/mo (Creator)Source: Jasper AI Inc. pricing page →
Free Tier	Yes Basic grammar and spelling corrections, tone detection, 100 AI prompts/month	No
Value for Money	7	5
Ease of Use	10	7
Feature Power	7	7
Setup Ease	10	7
Migration Ease	9	8
Transparency	7	5
Deployment	cloud	cloud
API Available	Yes	Yes
Platforms	Web, Mac, Windows, iOS, Android, Browser extensions	Web, Chrome extension
Compliance	SOC 2 Type II, GDPR, HIPAA (Enterprise)	SOC 2 Type II, GDPR

Data independently verifiedLast verified: March 2026Scoring methodology →Source policy →

Feature Comparison

Feature Comparison Matrix

19 features compared · 18 differences

Hide identical

Feature	Grammarly	Jasper
Core
Brand tones	Full	None
Brand voice and knowledge	None	Full
Browser extension	Full	None
Chrome extension	None	Full
Clarity rewrites	Full	None
Content repurposing	None	Full
Desktop app	Full	None
Grammar and spelling	Full	None
Mobile keyboard	Full	None
Plagiarism detection (Pro)	Full	None
SEO mode	None	Full
Style guides (Enterprise)	Full	None
Team collaboration	None	Full
Tone detection	Full	None
Advanced
AI image generation	None	Full
Campaign workflows	None	Full
Generative AI (GrammarlyGO)	Full	None
Templates library	None	Full
Integrations
API access (Business)	Full	Full

Pricing Comparison

Grammarly Pricing

FreeFree

Basic grammar/spelling, tone detection, 100 AI prompts/month

ProPopular$30/mo

Advanced rewrites, plagiarism detection, 2,000 AI prompts/month, brand tones

EnterpriseCustom

Unlimited AI prompts, SSO, SCIM, admin console, brand voice, analytics

Jasper Pricing

Creator$49/mo

1 seat, brand voice, SEO mode, AI image generation

ProPopular$69/mo

1 seat, 3 brand voices, collaboration, AI assistant

BusinessCustom

Unlimited brand voices, custom AI apps, API access, SSO, dedicated support

Who Should Choose Which?

Who should choose Grammarly

Best for

Anyone wanting grammar and style checking everywhere they write
Business teams needing consistent brand voice across communications
Non-native English speakers improving their writing

Avoid if

You need long-form content generation (Jasper, Copy.ai are better)
You write primarily in languages other than English
You want a privacy-first tool (Grammarly processes text in the cloud)

Who should choose Jasper

Best for

Marketing teams needing brand-consistent AI content
Enterprise content operations with style guides and brand voice
Teams producing high-volume marketing copy

Avoid if

You want a free or cheap AI writing tool
You need general-purpose AI (ChatGPT is more versatile)
You're an individual writer on a budget

Switching Guidance

Switching from Grammarly

Common triggers to leave:

•Need long-form content generation
•Privacy concerns about cloud processing
•Need multi-language support

Potential blockers:

•Habit of having Grammarly everywhere (browser, desktop, mobile)
•Enterprise brand voice and style guide setup
•Team analytics data

Switching from Jasper