Proofreading that checks the facts, not just the commas
Option+P on any selection: is this correct, what is unsupported, and what should you also know. With sources.
A grammar checker will happily approve a confident, well-punctuated, completely wrong sentence. That is the error that actually costs you.
aiCat proof-checks on three axes at once: correctness, bullshit, and what the text leaves out — each claim listed with a status and, where one exists, a link.
Proofread in three seconds
- SelectHighlight the text wherever it already is.
- Press Option+PAlt+P on Windows and Linux.
- ApplyThe result appears over your selection. One click puts it back.
What makes aiCat's proofread different
A non-bullshit score
A single number for how much of the text is actually supported, with the exact phrases that dragged it down.
Claim by claim
Supported / unsupported / false / unclear, plus a one-line explanation for each.
What is missing
The context a careful reader would want and the author left out.
Works on anything
A contract clause, a news article, a colleague's Slack message, your own draft.
People use it for
- Checking a claim before you forward it
- Reviewing AI-written drafts
- Reading news in a second language
Try it on the text in front of you
Free to start, 10 aiCatCoins included, no card. Mac, Windows and Linux.
The default hotkeys (all editable)
| Keys | What happens |
|---|---|
| Option / Alt | aiCat guesses: rewrite if you are writing, translate if you are reading something foreign, proof-check otherwise |
| Option + R | Refine / rewrite |
| Option + T | Translate |
| Option + P | Proof check |
| Option + D | Detect AI |
| Option + E | Explain |
| Option + C | Start a chat with the selection attached |
| Option + S | Chat with web search |
| Option + L | Read aloud — or record you, if nothing is selected |
| Option + W | Dictate: speak, and the text appears at your cursor |
| Option + I / V | Generate an image / a video |
| Option + H | History of everything you selected and what came back |
Why it is cheap
aiCat picks the cheapest model that is good enough for the task in front of it, instead of sending a comma fix to a frontier reasoning model. That single decision is why a month of aiCat costs $6 rather than $20.
You are billed in aiCatCoins: $1 buys 100 coins, one coin is roughly 10 000 tokens of an average text model — about one ordinary request. Coins never expire, so a quiet month costs you nothing.
aiCat pricing at a glance
| Plan | Price | aiCatCoins / month | Max selection | What it unlocks |
|---|---|---|---|---|
| Free | $0 | 10 | 500 chars | All text tasks + free voice-to-text |
| Premium | $6/mo (was $10) | 3 000 | 5 000 chars | Voice, image, video, premium models |
| Team + Offline | $18/member | 12 000 | 50 000 chars | Local models, no-internet mode, team sync |
| Enterprise | $90/member | 150 000 | Unlimited | SSO, audit, best coin rate |
Frequently asked
Can I proofread text in any app?
Yes — aiCat reads the selection at the OS level, so it works in native apps, browsers, IDEs, terminals and PDF readers.
Is proofread free?
The Free plan includes every text task with 10 aiCatCoins per month. Voice, image and video generation start at Premium, $6/month.
Which AI model does it use?
By default the cheapest model that is good enough — currently Gemini Flash Lite, falling back to Gonka. You can pick Gemini Pro, Claude, GPT or a local model instead, per task.
What is aiCat?
aiCat is a desktop app for macOS, Windows and Linux. You select text anywhere on your computer, press one hotkey, and an AI does what you need with it — rewrite, translate, proof-check, detect AI, explain, read aloud, dictate, or start a chat.
How much does aiCat cost?
Free to start, with 10 aiCatCoins a month and every text task included. Premium is $6 a month (40% off the $10 list price) and adds voice, image and video generation, 5000-character selections and 3000 coins a month. Team + Offline is $18 per member and adds local models that work without internet.
Which operating systems does aiCat support?
macOS (Apple Silicon and Intel), Windows 10/11, and Linux as AppImage, .deb or .rpm.