Rithere vs QuillBot

In short

QuillBot gives you ready-made tools: a paraphraser with modes, a grammar checker, a summariser, an AI detector, a plagiarism checker and citations.¹ On Windows it's strongest in the browser, on its website and in Word.^1,2 Rithere has none of those tools. Instead, any instruction you write becomes a shortcut.³

Pick Rithere if you…

• want more than paraphrasing: emails from notes, explanations, replies
• want it in Outlook, Slack and VS Code, not just grammar fixes there
• want to rewrite long passages, up to about 8,000 words at once

Pick QuillBot if you…

• paraphrase a lot and like picking a style and how many words change
• need plagiarism checks or citations for coursework
• work on a Mac or a phone

One rewrite, step by step

Same job in both: reword a paragraph in an Outlook email. QuillBot's Windows app fixes grammar there but doesn't paraphrase yet.⁴

QuillBot website7 steps

1. Highlight
2. Ctrl + C
3. Open QuillBot
4. Paste
5. Pick a mode, Paraphrase
6. Copy the result
7. Switch back, paste

In Word, QuillBot's add-in puts the paraphraser in a sidebar instead.²

Rithere2 steps

1. Highlight
2. Press your shortcut
3. Rewritten in place

Write the prompt once, such as "reword this, same meaning, same length".³

Side by side

Swipe the table sideways to see every column.

Feature	Rithere	QuillBot
Paraphrase styles and a word-change slider	Prompts onlyYou describe the style in words.	Yes2 modes free, 8 more on Premium.5,6
Any instruction, not just rewording	Yes3	Separate toolsCustom mode takes a word like "casual".5
Saved instruction on its own shortcut	Yes3	NoNone in its help centre.
Rewrites inside Windows apps	YesAlmost any app.3	Grammar onlyParaphraser "planned" for its Windows app; Word has an add-in.7,4,2
Ask without changing your text	YesPopup beside your cursor.8	AI ChatWeb, iOS and Android; 20 a day free for new users.9,10,11
Plagiarism checker	No	Premium25,000 words a month.12
Citations	No	FreeOver 1,000 styles.13,14
Free limit per paraphrase	About 8,000 words50,000 characters per selection, plus a daily fair-use limit.	100 to 125 wordsIts pricing page says 100, its help centre 125.1,6
Platforms	Windows15	EverywhereWeb, browsers, Windows, Mac, Word, phones.1

Pros and cons

Tick what you need

The count only adds up your own ticks. It isn't a score.

Price

US prices. QuillBot says prices depend on your region.¹⁹

For students

QuillBot offers student plans,¹ so here's the honest version for students. For plagiarism checks, citations or an AI detector before you submit, use QuillBot. Rithere helps while you study: highlight a hard paragraph in a PDF and get a plain explanation beside your cursor,⁸ or turn notes into revision notes.³ Check your school's rules on AI tools either way.

Privacy

• QuillBot uses your inputs to train and personalise its tools by default. Its browser extensions let you opt out, and it doesn't train on Team Plan users.¹⁸
• Rithere uses Google's Gemini AI on a paid plan. Rithere's servers don't store your text; Google keeps it 55 days only to check for abuse and doesn't use it to improve its products. Your History stays on your PC.²⁰

Our take

If paraphrasing is the job and you want fine control, plus the academic tools around it, QuillBot is built for exactly that. If you'd rather say what you want in your own words, once, and use it on a key in Outlook, Slack or anywhere else on Windows, that's Rithere, free today. You can keep both.

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