Grammarly vs QuillBot
Grammarly and QuillBot are two of the most-compared Writing tools. Grammarly starts at $12/mo and QuillBot at $8/mo — and they differ in features, ratings, and the use cases they suit best. This side-by-side breakdown covers pricing, key features, the pros and cons of each, and a clear verdict to help you pick the right one.
Pros & cons
Pros
- ✓Excellent free plan
- ✓Works everywhere (browser, desktop, mobile)
- ✓Real-time grammar and clarity fixes
- ✓Tone detection and rewrites
- ✓Trusted by millions
Cons
- ✗Best suited for English only
- ✗Premium is pricey for individuals
- ✗Suggestions can be overly conservative
Pros
- ✓Generous free plan to get started
- ✓Unlimited paraphrasing with 9 modes on Premium
- ✓Built-in AI detector plus humanizer
- ✓Plagiarism checker (25,000 words/month)
- ✓Chrome, Word and macOS integrations
- ✓Affordable at $8.33/month billed annually
Cons
- ✗Free paraphraser capped at 125 words
- ✗AI detector accuracy varies — do not rely on it alone
- ✗Best features locked behind Premium
- ✗No public API
The verdict
Grammarly and QuillBot are close competitors, but a few differences stand out. QuillBot is the more affordable option at $8/mo — about 33% less than Grammarly at $12/mo. Grammarly earns the higher user rating (4.6 vs 4.4). Grammarly offers an API that QuillBot lacks — important if you need integrations or automation. Grammarly adds a mobile app for working on the go. Bottom line: choose Grammarly if you want the highest-rated option; choose QuillBot if you want to spend less.
Which one should you choose?
When to choose Grammarly
AI writing assistant for grammar, clarity, and tone.
Pick Grammarly if you want the highest-rated option, need API access and integrations, and want a mobile app.
When to choose QuillBot
Paraphraser, grammar checker, humanizer and AI detector in one suite
Pick QuillBot if you want to spend less.
Frequently asked questions
What's the difference between Grammarly and QuillBot?+
Grammarly: Grammar and writing assistant. QuillBot: QuillBot is a writing suite built around its paraphraser (9 modes on Premium), with a grammar checker, a summarizer that handles up to 6,000 words, a 40+ language translator, a plagiarism checker (25,… The biggest differences come down to price, ratings, and features.
Which is cheaper, Grammarly or QuillBot?+
QuillBot is cheaper at $8/mo — about 33% less than Grammarly at $12/mo.
Which has the higher rating?+
Grammarly scores 4.6 versus 4.4 for the other tool.
Does Grammarly or QuillBot have a free plan?+
Both Grammarly and QuillBot offer a free plan, so you can try either before paying.
Which is better for Writing?+
For Writing, Grammarly is the stronger overall pick. Choose QuillBot instead if you want to spend less.