
QuillBot
QuillBot is an AI-powered writing assistant that helps users enhance clarity, improve grammar, paraphrase text, detect AI content, and prevent plagiarism.
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About
QuillBot is a comprehensive AI-powered writing solution designed to help individuals and professionals craft clear, polished, and impactful content. Founded in 2017, it offers a robust suite of tools including a Paraphrasing Tool, Grammar Checker, AI Detector, Plagiarism Checker, AI Humanizer, AI Chat, Summarizer, and Citation Generator. It aims to make writing painless by helping users articulate ideas more effectively, improve clarity and fluency, correct grammatical errors, condense information, and ensure proper academic or professional attribution.
Key facts
At-a-glance profile data
- Website
- try.quillbot.com
- Headquarters
- Chicago, United States
- Founded
- 2017
- Employees
- 318
- Total funding
- $4M
- Business model
- B2B2C
Tech stack
Detected on try.quillbot.com, last scanned 6 Oct 2026. Run your own scan
- CDN
- Cloudflare
- Email provider
- Google Workspace
“I have been using Quillbot for a while now, and even though I understand the need for people to buy the premium of your services, this thing keeps popping up while I'm working. I can't tell it to not show anymore, just to remind me later.”
View on Reddit“DO. NOT. MAKE. A. QUILLBOT. ACCOUNT.. If you value your privacy: DO NOT MAKE A QUILLBOT ACCOUNT. If you do make an account, consider using a burner email at the very least.”
View on Reddit“Got an 85% AI flag on Turnitin despite Premium. Are there any safe humanizers left?. Been using Quillbot premium for like 3 semesters already, thinking I could paraphrase my papers and have no problems with Turnitin.”
View on Reddit“I'm a graduate student working on my thesis, and I've been using QuillBot to help me paraphrase complex academic sources. It's been incredibly helpful for rephrasing sentences and avoiding direct quotes, which my supervisor encourages.”
View on RedditDisappointing
“I am an avid QuillBot user and have been hoping for an app for a long time. It only seemed like an obvious next step for the company. However, I must say that this app in its current state needs a lot of work. The paraphrasing tool definite…”
View on App StoreMisleading Pricing and Refund Refused
“I signed up because the plan was advertised at around $8 per month. I did not realize that I would immediately be charged about $99 for an entire year. As soon as I noticed the charge, I cancelled the renewal and contacted support requestin…”
View on App StoreWas good, but now has limited free components.
“I found this on the web about a year or so ago, and I really enjoyed for what I needed when I wrote my stories and was a massive help with my grammar then. And amazing tools within the free content set. But since now it changed, the free av…”
View on App StoreLove this app but..
“I absolutely love QuillBot I've been waiting for an app for a long time since I've been using the desktop version for a long time. It's gotten me through so many school Essays. I was excited to know there was an app especially excited for t…”
View on App StoreSuperior to Grammarly
“I used to use Grammarly religiously in college. That is until I had to take an accelerated course in grammar. Already taking 18+ credit hours, I realized I needed something accurate and reliable. For the first handful of assignments, I used…”
View on App StoreIts okay
“I came over, Gram Marly. Their AI was great, and I used it for three years. Their formula was a lot like yours, but they could get really complicated. I never lost an argument with someone's AI. It would tell me if my facts were wrong, whic…”
View on App StoreBad support - Hot trash
“Response to dev: You reply to app reviews quicker than you do for support tickets. Which tells me that you only care about your image and not actually supporting your product. Terrible. Update: Still a garbage app. If you don’t mind waiting…”
View on App Store** Update re: keyboard on and off issues -
“I was able to troubleshoot it on my own and deleted the app, downloaded it again. It works seamlessly now! Not sure why I didn’t think of that before. Anywho, I think it also helped that I deleted the other stuff on my keyboard i.e. starts…”
View on App Store10/10
“The keyboard feature is literally to die for. You can edit from the page you're working on without having to switch apps and copy and paste. You get multiple versions of the sentence thats selected, its truly amazing. This makes editing so…”
View on App StoreMs. D
“QuillBot’s AI function wrote this for me at a college freshman’s level. “Two tools that I find essential are QuillBot's Grammar and Paraphraser features. I utilize them in the Chrome browser for various writing tasks. Every month, QuillBot…”
View on App StoreSome comments are pulled from public discussions around the web (look for the source icon). Quotes are excerpts; click through to read the full thread.
Frequently asked
What is QuillBot's Effective Domain Rating?
StartupHub's Effective Domain Rating for QuillBot is 40 out of 100, measuring real cross-surface visibility in search engines and AI answers rather than claimed link authority. That is overrated against its Ahrefs Domain Rating of 83, meaning its claimed authority outpaces how often it actually surfaces in search and AI results.
Is QuillBot trustworthy and reputable?
StartupHub's Data Trust & Reputation score for QuillBot is 50 out of 100, based on site security posture and privacy practices.
How much funding has QuillBot raised?
QuillBot has raised a total of $4M in funding.
How many employees does QuillBot have?
QuillBot has approximately 318 people on record.
Does QuillBot have an affiliate program?
Yes, QuillBot has an affiliate program. Register here: https://try.quillbot.com/d52f8b7c4cc72834
