Last updated 08-12-2026
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ParagraphAI
ParagraphAI fixes grammar, drafts email replies, and generates text from a one-tap interface on mobile, desktop, and Chrome. The app, keyboard, and web extension share one account so you can edit a message on your phone and pick it up later in the browser. Fortune 500 teams and NASA use it for fast, consistent writing across 40+ languages.
Unlike grammar tools that only flag mistakes inline, ParagraphAI bundles Fix, Reply, Create, Edit, Summarize, and Humanize modes in a single tap workflow. The AI keyboard brings those actions into any app you type in, which is the differentiator against browser-only competitors like Grammarly's standalone extension.
Students with dyslexia, ESL writers, and professionals who email all day are the core audience. The free tier gives five daily uses per mode; Pro removes the cap and expands input to 10,000 characters.
One-tap Fix corrects grammar across any message without word-by-word review
Reply drafts email responses from a single tap with tone matching
AI keyboard works inside any mobile app for Fix, Reply, Edit, and Create
Supports 40+ languages with adjustable input and output language settings
Humanize mode rewrites AI-generated text to pass AI detection checks
Pro plan allows 10,000 character input versus 1,000 on the free tier
Summarize mode extracts key points from web pages, PDFs, and long documents
One-tap Fix, Reply, Create, and Edit work across app, keyboard, and Chrome extension.
AI keyboard brings writing tools into any mobile app, not just a dedicated editor.
Supports 40+ languages with separate input and output language settings.
Rated 4.7 out of 5 with 9,000+ app store ratings and use at 25% of Fortune 500 companies.
Zero data retention policy on AI models; inputs are not used for training.
Free plan limits each mode to 5 uses per day and 1,000 characters per input.
Pro at $149.88 per year costs more than Grammarly's $180 annual unlimited tier in direct comparison.
Enterprise pricing is custom only with no published per-seat rate.
Humanize and Summarize features require navigating multiple modes rather than a single default view.
Is ParagraphAI free to use?
Yes. ParagraphAI offers a free plan with 5 uses of Create, Fix, Reply, and Edit per day, 1,000 character input, and basic editing filters. Pro costs $24.99 per month or $12.49 per month billed annually at $149.88 per year.
What platforms does ParagraphAI support?
ParagraphAI runs on iOS, Android, Chrome via a web extension, and as a web app. One account syncs history and settings across all devices when you sign in with the same email address.
How many languages does ParagraphAI support?
ParagraphAI supports 40+ languages. You can adjust input and output language settings to match your fluency needs, and the keyboard and extension apply those preferences across platforms.
What does the ParagraphAI keyboard do?
The ParagraphAI keyboard integrates into your favorite mobile apps and brings one-tap Fix, Reply, Edit, and Create actions wherever you type. It is separate from the standalone app and works cross-app on iOS and Android.
Does ParagraphAI have a humanize feature?
Yes. ParagraphAI includes a Humanize mode that rewrites AI-generated content to sound natural and pass AI detection tools. It is available alongside Fix, Reply, Create, Edit, and Summarize modes.
What is included in ParagraphAI Pro?
ParagraphAI Pro includes unlimited Fix, Reply, and Edit uses per day, advanced editing filters for length, rephrase, and emoji, 10,000 character input, cross-platform message history, and access on all devices with one account.