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Auri.AI vs Grammarly

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. Grammarly publishes a starting price ($12); Auri.AI does not. Both have a free tier.

Auri.AIApple-only assistant bundling an AI keyboard, chat, smart notes and transcriptionGrammarlyGrammar, tone and rewriting help inside every app

Side by side

FactAuri.AIGrammarly
CategoryPersonal AI AssistantsGrammar & Proofreading
Pricing modelFreemiumFreemium
Starts at—$12 month
Public APINoNo
PlatformsmacOS, iOSWeb, Chrome Ext, Windows, macOS, iOS, Android
CompanyFeanor Labs LLCSuperhuman
Launched—2009
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

Auri.AI

The system keyboard is what makes Auri interesting: rewriting and translation happen inside whatever app you are already typing in, rather than in a separate chat window. The catch is that the whole product is locked to Apple devices and its price is invisible until you hit the in-app paywall.

Pros

  • Keyboard integration works across any app, not just the vendor's own
  • Chat, notes, transcription and translation share one subscription
  • Explicit statement that keystrokes and speech are not stored or used for training
  • Free tier covers nearly all features under daily limits

Cons

  • No price published anywhere on the website
  • Apple platforms only, with no web fallback
  • No public API or integrations for automating the features

Grammarly

Still the default for catching mistakes inside other people's software, but the free tier has quietly become an AI-prompt meter and the honest price is $30 unless you commit to a full year.

Pros

  • Runs inside the apps people already write in rather than as a separate editor
  • Free tier still covers spelling, grammar and tone detection with no time limit
  • Pro folds in plagiarism and AI-text detection that rivals charge for separately

Cons

  • The $12 headline is the annual rate; paying monthly costs $30
  • Free AI allowance is 100 prompts a month and depletes quickly
  • No public API, so it cannot be embedded in another product
  • Enterprise pricing is not published anywhere on the site

Which one fits

Choose Auri.AI if you need

  • iPhone and Mac users who want AI editing inside every app they type in
  • Multilingual writers who translate or paraphrase constantly on mobile
  • People recording meetings or memos on a phone and wanting them written up

Choose Grammarly if you need

  • Anyone writing in a browser, Word or email who wants corrections in place
  • Teams enforcing a house style guide across people who are not writers
  • Non-native English speakers who want fluency rewrites, not just error flags

More comparisons

All Auri.AI alternatives →Browse all Personal AI Assistants →