Nameryn
QuillBot
Paraphrases, checks grammar and tone, and summarises, in the browser, Word and on your phone. AI-powered tool, with a free plan; runs on web, desktop, mobile, browser extension. The stack builder picks it for writing polish.
What it is known for
- Strengths: paraphrasing in nine built-in modes and custom modes; grammar in six languages and tone insights; plagiarism and AI-text detection.
- For: students, content creators and working professionals.
- Runs on: web, Chrome, Edge and Safari extensions, a Word add-in, macOS, Windows, iOS and Android.
- Learning curve: easy: paste text and pick a mode.
- Works with: Microsoft Word add-in and Google Chrome extension.
Read on October 10, 2026 from quillbot.com/premium.
Plans and prices
| Plan | Price | What you get |
|---|---|---|
| Free | Free | Paraphrase up to 100 words in two modes, basic grammar, limited AI detection |
| Premium | No dollar price listed | $8.33 USD a month, billed annually |
Checked by hand against quillbot.com/premium on October 19, 2026; confidence high. Prices are monthly in US dollars unless the row says otherwise; the builder counts the plan it starts on, Premium.
When the stack builder picks it
The builder reads each job's rules from the top and takes the first step whose conditions hold and whose plan fits the money left. QuillBot is named in these steps:
- Writing polish, step 2 of 3, when less than $12 is left for it: the free plan; the step also names Grammarly, and the best score takes it.
- Writing polish, step 3 of 3, otherwise: Premium (No dollar price listed); the step also names Grammarly, ChatGPT, Claude and Gemini, and the best score takes it.
The rules are public in stack-rules.json, and how the stack builder scores explains the tie-break.
Alternatives the same rules name
- Grammarly: Checks and rewrites your writing as you type, anywhere. From free.
- ChatGPT: OpenAI's assistant for writing, research and everyday questions. From free.
- Claude: Anthropic's assistant for writing, analysis and long documents. From free.
- Gemini: Google's assistant, tied into Gmail, Docs and Search. From free.
Signals and what people say
No public counts on file yet.
Change log
- October 19, 2026: plans and prices checked against quillbot.com/premium; nothing had moved.
- October 10, 2026: added to the tool list; plans and prices first recorded from quillbot.com/premium.
Logo: Nameryn monogram (no free mark on file), CC0 1.0.