Caret vs Grammarly

Caret

Caret's idea is that the AI should come to where you type rather than making you visit a chat window, and one keystroke in any Mac app is about as low-friction as that gets. Storing memory locally is the right default for something this invasive. But the mechanism is continuous screen reading, it demands macOS 26 or newer, and free at launch from a v1 startup is a price that has nowhere to go but up.

Pros

• +Works across dozens of apps rather than inside one editor
• +Single Tab keystroke — no palette, no window switch
• +Memory is stored locally on the Mac and improves with use
• +Free at launch with no card required

Cons

• −macOS 26 or newer only, which excludes most machines today
• −Requires continuous screen-reading permission to function at all
• −Free at launch is not a committed price for a v1 product
• −No API, no team features, no cross-device sync mentioned

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

Is Caret cheaper than Grammarly?

Caret is free to use; Grammarly starts at $12/mo.

Does Caret or Grammarly have a free tier?

Both: Caret is free to use, and Grammarly has a free tier.