QuillBot
AI writing · Rewriting · quillbot.com
Rewriting a sentence in a clearer tone or different wording is the main job of QuillBot, an AI writing tool for students and professional writers. It also checks grammar, summarizes text, detects AI-generated content, builds citations and offers a humanizer, with a free plan that caps paraphrasing at 100 words.
Ratings
About the Tools.us.org score
A weighted average of the published ratings below, shown out of 10 in the header above.
Based on 2 sources, 26K ratings.
How we calculate this
Each source counts by its number of ratings or reviews, capped at 1,000. Score = 2 × sum(rating × weight) ÷ sum(weights), rounded to one decimal. Inputs are published ratings out of 5; a missing source is left out, never counted as zero. A composite of published scores, not our own test.
Included: App Store 4.7 (weight 1,000), Google Play 4.5 (weight 1,000).
What users say
Summary of 90 App Store reviews, 18 Nov 2024 to 2 Nov 2026 (counted from the reviews)
Reviewers who like the app mention enjoyment of the app and recommendations to others, use for writing, images and creative work and help with everyday questions and tasks. Reviewers who complain mention bugs, crashes and features that stop working, subscription cost and paywalled features and the latest update and the changes it brought.
Top praises
- Enjoyment of the app and recommendations to othersmentioned in 10 of 90 reviews
- Use for writing, images and creative workmentioned in 3 of 90 reviews
- Help with everyday questions and tasksmentioned in 3 of 90 reviews
Top complaints
- Bugs, crashes and features that stop workingmentioned in 13 of 90 reviews
- Subscription cost and paywalled featuresmentioned in 13 of 90 reviews
- The latest update and the changes it broughtmentioned in 6 of 90 reviews
Best suited to: People who value enjoyment of the app and recommendations to others.
How it is counted: fixed keyword rules read each review's text, and no model writes the claims. A review counts once per theme and can mention several. Praise is counted in reviews rated 4 or 5 stars, complaints in reviews rated 1 or 2 stars. The reviews are the 90 that Apple's public review feed returned; the feed returns a window of reviews, not all of them.
Updated 5 Nov 2026. Supporting reviews: App Store
Facts at a glance
| Fact | Value | Source |
|---|---|---|
| Launched | 2017. Company started in 2017 with the Paraphraser, per its About page | quillbot.com/about, checked 5 Nov 2026 |
| Free plan | Freemium: a free plan exists | quillbot.com/premium, checked 23 Oct 2026 |
| Starting price | $4.17/mo · billed yearly | quillbot.com/premium, checked 23 Oct 2026 |
| Platforms | Chrome extension, Edge extension, Safari extension, Android, iOS, Windows, macOS | quillbot.com/premium, checked 23 Oct 2026 |
Alternatives
Offers a free plan and a Pro trial, with an email reminder two days before the trial ends.
Sells a lifetime plan next to monthly and yearly billing, with story-planning tools for fiction writers.
Write Pro is sold as an add-on to its translation plans, which include glossaries and saved translations.
Sources: grammarly.com/plans, prowritingaid.com/pricing, deepl.com/en/pro
Pricing & plans
Pricing
Free plan · paid from $4.17/mo
USD, billed yearly
Model
Freemium
Free plan available
Price tiers
| Plan | Per month | Usage, as the vendor states it |
|---|---|---|
| Free | Free | Paraphrasing and humanizing capped at 125 words, with basic grammar fixes and limited AI Detector use |
| Premium | $4.17 USD per month, billed annually; full access to paraphrasing, humanizing and AI Detector | |
| Team Plan | No price on this page; adds usage metrics, user management dashboard and centralized billing |
Prices are the vendor's list prices in USD. Source: quillbot.com/premium, checked 5 Nov 2026.
Source: quillbot.com/premium, checked 23 Oct 2026
QuillBot Free, in practice
What the free plan covers and where it stops.
Free plan limits
- Paraphrase up to 100 words
- 2 paraphrasing modes
- Humanizer limited to 100 words
- Summaries of up to 1,200 words
- AI detector with limited usage
Paid plans raise these limits.
Sources: quillbot.com/premium
Features & platforms
Paraphrasing in standard, fluency and custom modes
Grammar checking in 6 languages
Text summarizer
AI content detector
Plagiarism checker on Premium
Citation generator
- Chrome extension
- Edge extension
- Safari extension
- Android
- iOS
- Windows
- macOS
Sources: quillbot.com/premium, checked 23 Oct 2026
Also in AI writing on Tools.us.org: Copy.ai, DeepL, Frase, Grammarly, Hemingway Editor, HyperWrite, Jasper, Lex, Paragraph AI, Sudowrite, Wordtune, Writesonic
Sources and dates
- App Store: checked 6 Nov 2026, listing
- Google Play: checked 5 Nov 2026, listing
- Plan facts: quillbot.com/premium, checked 23 Oct 2026
- Official site: quillbot.com
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