ParagraphAI

Overview

ParagraphAI is an AI writing assistant built for people who write every day at work: sales reps replying to leads, customer service teams handling inboxes, ESL professionals writing in a second language, and employees at companies like Pepsi, Meta, RBC, and Cushman & Wakefield who need consistent on-brand communication. The tool has more than one million users, is trusted at NASA and over 25% of Fortune 500 companies, and holds a 4.7/5 rating from over 9,100 app store reviews. ParagraphAI positions itself as the world's first GPT-powered AI writing app and AI keyboard, and it is the only tool in its category that combines native mobile and desktop access, an AI keyboard, and unlimited fix/reply/edit in a single account. The Pro plan costs $12.49 per user per month billed annually at $149.88 per year. Enterprise pricing is custom.

Features

• One-Tap Grammar Fix -- Corrects all spelling and grammar in a single tap without requiring word-by-word review, available on Free and Pro plans
• One-Tap Email Reply -- Reads an incoming email or message and drafts a contextually relevant reply instantly across mobile app, keyboard, and Chrome extension
• AI Keyboard -- A standalone keyboard app for iOS and Android that brings Fix, Reply, Edit, and (on Pro) Create into any app including Gmail, Slack, WhatsApp, Instagram, and Salesforce
• Real-Time Edit Filters -- Adjusts text formality, friendliness, length, phrasing, and emoji on a slider; Free includes formality and friendliness, Pro adds length, rephrase, and emoji
• 40+ Language Support -- Set input and output languages independently to translate across 40+ languages or write in one language and receive output in another
• 10,000 Character Input (Pro) -- Pro plan raises the per-session input limit from 1,000 to 10,000 characters, enabling longer documents and emails
• AI Humanizer -- Rewrites AI-generated text to sound natural and pass AI detection tools, available on all plans including Free
• Summarization -- Condenses web pages and PDFs to key points without leaving the app
• Custom Templates -- Lets users write and save reusable prompt instructions for consistent outputs, with a public template library also available
• Cross-Platform History -- Saves favorited outputs across iOS, Android, Chrome, and web under a single account login (Pro)
• Enterprise Brand Voice -- Enterprise plan adds brand voice customization so all team members generate on-brand communication
• Zero Data Retention -- Works only with AI models that have a zero data retention policy so inputs are never used for training

Best For

Dyslexic professionals and students who need real-time grammar correction and tone adjustment without word-by-word editing, ESL speakers who want to write in their native language and receive output in a second language using the 40+ language translation feature, Sales and customer service reps who reply to dozens of emails daily using the one-tap Reply feature inside Gmail or Salesforce without switching apps, Marketing coordinators and business writers who need to create and edit a variety of content types (emails, reports, social posts) across mobile and desktop from one account, Enterprise teams at companies like Pepsi, Meta, or RBC that need consistent on-brand communication enforced via brand voice customization

How It Works

ParagraphAI is accessible through three surfaces that sync under a single account: a mobile app on iOS and Android, a Chrome extension for browser use, and the standalone web app at app.paragraphai.com. The four core actions are Create (generate content from a prompt), Reply (read an incoming message and draft a response), Fix (one-tap grammar and spelling correction), and Edit (adjust tone, length, and style in real time). The AI Keyboard is a separate install on mobile that puts Reply, Fix, and Edit directly inside any app you are already using, including Gmail, Slack, WhatsApp, Telegram, iOS Messages, Instagram, and Salesforce, so you never have to leave to get writing help. Translation covers 40+ languages by setting your input and output language independently, which means you can write a prompt in Spanish and receive output in English, or any other combination. The Summarize feature condenses web pages and PDFs to key points without leaving the app. The Humanize feature rewrites AI-generated text to read as natural human writing and avoid being flagged by AI detection tools. Custom Templates let you save reusable prompt instructions for consistent outputs across any text field. The Free plan allows 5 uses per day of each action with a 1,000-character input limit; Pro removes the daily cap and raises the input limit to 10,000 characters.