AI Rewriter - RewriterPro vs Type AI - The AI Keyboard

RewriterPro is a writing assistant for turning AI-generated drafts into text that reads more naturally. You paste copy into the editor, pick fluency, tone, audience, and language settings, then run a rewrite or switch on Humanizer mode to reshape robotic phrasing. The same site also hosts a standalone AI Humanizer and a free AI content checker, so you can rewrite, humanize, and test detection risk without leaving the product.

Many humanizer tools stop at one pass of paraphrasing. RewriterPro bundles the rewriter, Humanizer, and checker into one workflow, which matters when you need to tune fluency and tone before checking whether the output still flags on Turnitin, GPTZero, or Originality.ai. The humanizer page offers two models, Pulse 3.0 and LUMENARIS, instead of a single rewrite setting.

Students use it to rework essays and reports. Bloggers and marketers refresh blog posts, ad copy, landing pages, and product descriptions. Business professionals rewrite emails, proposals, and presentations with formal or academic tone presets.

Type AI (formerly GPTKey) is an iOS keyboard extension that drafts tweets, captions, emails, texts, notes, and essays inside any app. You pick a writing prompt on the custom keyboard, and the extension returns an inline AI response without leaving Messages, Mail, or your notes app.

Most mobile writing assistants live in a separate app you copy from. Type AI installs as a system keyboard, so generation happens where you are already typing. A companion app lets you build custom prompts, review history, and copy outputs to paste elsewhere.

The press kit lists developer Gavin King and requires iOS 16 or later. New users get initial prompts free, then buy prompt packs or unlock unlimited prompts through in-app purchases to cover model compute costs while keeping the app ad-free.

It fits iPhone users who draft social posts, messages, and short-form writing on the go and want ChatGPT-style generation from the keyboard rather than a standalone chat window.