DeepL
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Quality-focused machine translation service, favored for natural output over sheer language count.
- Price
- $8.74
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Freemium
Grammarly
The default AI writing assistant, offering grammar, clarity and tone checks across most apps.
https://grammarly.com
Grammarly
The default AI writing assistant, offering grammar, clarity and tone checks across most apps.
What is Grammarly?
Grammarly is the most widely adopted tool in the writing-assistant category. Its strength is distribution: browser extensions, desktop apps and a mobile keyboard place suggestions inside nearly every text field, from Gmail to Google Docs to Slack.
Compared with QuillBot, which emphasizes paraphrasing and summarization in a dedicated workspace, Grammarly focuses on in-context correction and tone guidance while the user writes. Generative drafting has been added, but the core value remains error prevention and clarity.
The free plan handles spelling and grammar; Pro at $12 per month unlocks sentence rewrites, tone shifts and style rules. The trade-off is homogenization: aggressive acceptance of suggestions can make prose uniform, and organizations with data sensitivity should review how text is processed.
Best fit: Professionals and teams wanting in-context writing correction
Strengths
- ✓ Broadest app coverage in its category
- ✓ Strong free tier for basic correction
- ✓ Minimal learning curve
Trade-offs
- – Advanced suggestions require a paid plan
- – Can push writing toward a uniform style
Use cases
- 01
Standardizing writing quality across a team
- 02
Reducing errors in customer-facing messages
- 03
Rewriting dense paragraphs for readability
Key features
- ✓Inline grammar, spelling and punctuation correction
- ✓Clarity, conciseness and tone suggestions
- ✓Generative drafting and rewriting prompts
- ✓Cross-platform extension, desktop and mobile apps
Pricing
Prices last checked Jul 4, 2026. Spotted an error? Let us know.
User reviews
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Grammarly FAQ
What is Grammarly?+
The default AI writing assistant, offering grammar, clarity and tone checks across most apps. Best for professionals and teams wanting in-context writing correction.
Grammarly pricing?+
Free · Pro $12/mo (freemium).
What are Grammarly’s main competitors?+
QuillBot, Wordtune, Sudowrite and DeepL.
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