QuillBot Alternative for iPhone: AI Humanizer vs QuillBot

The short answer

QuillBot's iPhone app is a broad writing toolkit built around a keyboard. Its App Store listing describes paraphrasing modes, grammar checking, translation, AI detection, AI chat and image generation. AI Humanizer is a focused app for iPhone and iPad: it humanizes AI-generated text with settings for intensity, purpose and reading level, paraphrases text and estimates whether text was written by AI, with a history of your results.

If you want one keyboard that works inside every app, QuillBot covers more ground. If your main task is making AI drafts sound natural, with control over how they change, AI Humanizer is worth a look.

At a glance

Detail	AI Humanizer - Paraphrase Tool	Quillbot-AI Writing & Keyboard
Developer	Juyana Islam	QuillBot, a Learneo Inc. business
Devices in the App Store listing	iPhone (iOS 16 or later) and iPad (iPadOS 16 or later)	iPhone (iOS 16 or later)
App languages	32	English
Price model	Free to download, with in-app purchases	Free to download, with a Premium subscription
Humanize AI text	Yes, with intensity, purpose and literacy level settings	Yes, a Humanizer mode in its AI Keyboard
Paraphrase	Yes	Yes, 2 free modes and 8 Premium modes
AI detection	Yes, an overall AI probability	Yes, sentence-level and document-wide
Grammar checking	Not listed	Yes
Translation	Not listed	Yes, 40+ languages
Keyboard for other apps	Not listed	Yes
Saved work	History of humanizer and detector results	Documents saved in the app
Other tools	None listed	AI chat, image generation
Account	Not required	Required
U.S. App Store rating, October 28, 2026	4.8 from 93 ratings	4.7 from 3,067 ratings

"Not listed" means the app's App Store listing doesn't mention the feature.

Where QuillBot is stronger

• More tools in one app. Its listing includes grammar checking, translation into 40+ languages, AI chat and image generation.
• A keyboard for every app. Paraphrasing, grammar checks and translation work inside the apps you already write in.
• Many more App Store ratings, which gives a fuller picture of other people's experience.

Where AI Humanizer may suit you better

• A dedicated humanizer with three settings: Humanization Intensity, Purpose and Literacy Level. The AI Humanizer for iPhone and iPad page explains each one.
• Detection in the same flow. From a rewrite's result screen, Check AI Detection runs the AI Detector on it.
• Built for iPad as well as iPhone. QuillBot's listing shows iPhone compatibility.
• An interface in 32 languages, compared with English for QuillBot.
• A History tab that keeps your humanizer and detector results.

How to choose

• Choose QuillBot if you want one keyboard for paraphrasing, grammar and translation across all your apps.
• Choose AI Humanizer if your main task is making AI-drafted text sound natural on iPhone or iPad, with control over how it changes.
• Both are free to download, so the quickest way to decide is to try each on the same paragraph.

Whichever you use, AI detection results are estimates, and no tool can guarantee how a detector will score a text. For more on that, read how AI text detectors work.