QuillBot vs StealthWriter
QuillBot
quillbot.comStealthWriter
stealthwriter.aiSide by side
| Figure | QuillBot | StealthWriter |
|---|---|---|
| Price from | $0.69/mo | $20/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| Plans published | 8 | 7 |
| Spec score · AI Paraphrasing Tools | 9.1 (#1) | 8.5 (#6) |
| Spec score · AI writing assistants | 9.2 (#5) | 8.4 (#16) |
| AI Detector | The AI Detector analyzes text for signals that it may have been generated by AI, including sentence-level analysis. | The public detector accepts up to 500 words without an account and provides an overall estimate plus sentence feedback. |
| API | QuillBot states that it currently offers no B2B or B2C API. | The FAQ says there is no public API currently, with a possible future API. |
| Documentation and support | The Help Center contains product guides, billing, extensions and apps, troubleshooting, privacy, safety and business-plan documentation. | Public support consists of an FAQ, email, phone support Monday through Friday, and a Discord community. |
| Free plan | Yes | Yes |
| Integrations | Its desktop app can appear as a widget in apps including Slack, Notes, and Messages, and its Premium page lists a Word add-in. | No third-party integrations are listed on the reviewed official product, pricing or FAQ pages. |
| Language support | multilingual | The FAQ names Spanish, French, German, Italian, Portuguese, Dutch and other languages as supported. |
| Rating on G2 | 4.4 out of 5 from 122 reviews | 0.0 out of 5 from 0 reviews. |
| Rating on Trustpilot | 4.8 out of 5 from 14,302 reviews | 3.5 out of 5 from 74 reviews. |
| Support | Premium’s Team Plan benefits include priority assistance and account-management support. | Support is available at [email protected] and +1 (307) 998-3768 Monday through Friday, 9:00 AM–5:00 PM Mountain Time; the contact page says it typically responds within 24 business hours. |
| What it does | QuillBot provides AI tools for paraphrasing, grammar correction, summarization, translation, originality checking, chat, image generation and related writing tasks. | StealthWriter rewrites AI-assisted text for more natural phrasing and includes an AI detector. |
Plans
QuillBot
- FreeFree
- Premium$8.33 a month
- PremiumPriced on request
- Premium$8.33 a year
- Team Plan (51+ seats)$69.95 a year
- Team Plan (11–50 seats)$79.95 a year
- Team Plan (2–10 seats)$89.95 a year
- TeamPriced on request
StealthWriter
- FreeFree
- Starter$20 a month
- Plus$50 a month
- Pro$100 a month
- Business$200 a month
- Scale$400 a month
- EnterprisePriced on request
In their own words
QuillBot
QuillBot is a set of AI tools for writing, communication, design, coding, and collaboration across platforms and formats. Its writing tools include paraphrasing, grammar and plagiarism checking, AI detection and humanizing, summarizing, and citation generation. The Free plan allows paraphrasing up to 100 words in two modes, with basic grammar and summaries plus limited access to humanizing and the AI Detector. The Premium comparison lists paraphrasing in 23 languages and translation into more than 40 languages. QuillBot offers desktop and mobile apps for macOS, Windows, Android, and iOS, alongside Chrome, Edge, and Safari extensions. Its desktop app can appear as a widget in apps including Slack, Notes, and Messages; Premium also lists a Word add-in. QuillBot says one subscription works across its apps and platforms, with Premium usable on up to 10 devices at a time. Team plans add writer-management dashboards and centralized billing, while Team Plan benefits include priority assistance and account-management support. The maker says QuillBot began in 2017 as a paraphrasing tool for English-language learners. The Free plan is available; no Premium price is listed here.
StealthWriter
StealthWriter rewrites AI-generated or AI-assisted text to improve phrasing, flow, and clarity, and includes an AI detector. Its humanizer provides light, medium, and aggressive rewrite levels. The detector estimates whether submitted text may be flagged as AI-generated and gives overall and sentence-level feedback. It accepts text from tools such as ChatGPT, Claude, Gemini, Llama, Mistral, Copilot, and Jasper; listed supported languages include Spanish, French, German, Italian, Portuguese, and Dutch. StealthWriter runs in modern browsers on desktop, tablet, and mobile, with Android, iOS, and web listed as platforms. The free plan allows 10 humanizations and 10 AI scans daily, up to 1,000 words per input, and includes Ghost 5.2 Mini. Paid plans start at $20 a month and allow up to 5,000 words per input, with Ghost 5.2 Pro and Ghost Legacy also included. The public detector demo has a 500-word scan limit and daily limits. The maker advises reviewing rewritten text because a rewrite can alter details or how a claim is expressed.