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An AI Assistant That Reads the Screen You're On

Summarize, listen, rewrite and automate in any app, on Android, Mac and Windows. No copy-paste, no app switching, no explaining what you're looking at.

Free plan · No account needed · Never runs in the background

4.6
Google Play rating
500+
AI actions
10+
Languages
4
Platforms, one account
inkandatoms.com/local-first
Engineering

The quiet return of local-first software

For fifteen years the default answer was the server. Your documents lived somewhere else, your edits were round trips, and an aeroplane was enough to make the tool useless.

Local-first inverts that. The device holds the real copy; the network is a synchroniser, not a landlord. Conflict-free replicated data types made the merge tractable, and cheap local storage made the rest obvious.

Riya · Design
Today 9:38 AM
Hey! Any update on the quarterly report?
Working on it now
Nice — when can I expect it?
hey can u send me teh feedback by tmrw mrng?? need it asap
⌃Spacesummons Arc anywhere in macOS

AI Summary

inkandatoms.com
1

For fifteen years software defaulted to the server — documents lived remotely and every edit was a round trip.

2

Local-first inverts the relationship: the device holds the authoritative copy and the network merely synchronises it.

3

CRDTs made conflict-free merging practical, while cheap local storage removed the last reason to centralise.

4

The tradeoff moves to sync infrastructure: teams own the merge semantics they used to rent from a database.

5

The pattern pays off where offline use is a real requirement, not an aesthetic one.

Listen Copy Save
Summarizing…
1

Arc AI Summary panel on a Mac

Works on top of the apps you already use, and any other app that shows text

  • Chrome
  • Safari
  • Gmail
  • WhatsApp
  • Slack
  • Notion
  • Mail
  • Preview
  • Obsidian
  • Reddit
  • LinkedIn
What Arc is

Chatbots make you bring the screen to them. Arc is already on it.

Arc: AI Screen Assistant is an AI assistant app that runs on the screen you are already looking at. On Android it's a floating sidebar over every app; on Mac and Windows it's a panel you open with Control+Space (Ctrl+Space on Windows) over any window. It reads the current screen and acts on it: summarize, read aloud, rewrite, chat, extract.

You don't describe your situation to it, because it already has the screen. It's free on Android, Mac and Windows with 7 requests a week; iPhone is in development.

With a chatbot

  1. Select the text
  2. Copy it
  3. Open the AI app
  4. Paste and explain
  5. Copy the answer back
5 steps · 2 apps · context lost every time

With Arc

⌃ Space or tap the Arc bubble, then pick an action
The summary, reply or rewrite appears right where you are, in the app you never left.
1 step · 0 app switches
Features

One assistant for everything on your screen.

Pick what you need done. Arc does it on the page, message or document you're already in.

Get the point of anything in seconds.

Arc turns articles, PDFs, long emails and threads into numbered key points, then answers follow-up questions about the same screen, so you never have to re-explain the context.

  • Numbered key points with an auto-detected title and source
  • Ask follow-ups about the page you're on
  • Explain or translate in 10+ languages
Explore AI Summary & Reader
Arc AI Summary panel on a Mac with numbered key points from a web article
Arc AI summary result on an Android screen

Write better, right inside the text box.

Rewrite in any tone, fix grammar, draft a reply or turn notes into a post. Insert drops the result back into the field you were typing in: Gmail, WhatsApp, Slack or anything else.

  • Rewrite, reply, fix grammar or create a post
  • Inserts in place, with no copy-paste
  • Works in every app with a text field
Explore AI Writer
Arc AI Writer text inserted into a Gmail draft on a Mac
Arc AI Writer rewrite result on an Android screen

Hear any screen, read aloud.

Natural text-to-speech with automatic language detection. Listen to articles, documents and messages while you commute, cook or rest your eyes, straight from the floating sidebar.

  • Natural voices with automatic language detection
  • One tap from any app, no copying
  • Built with accessibility in mind
Explore Text to Speech
Arc floating sidebar open over Chrome on Android, showing the read-aloud action
Arc library of saved summaries on Android

Pull out the dates, contacts and codes.

Smart Extract reads the screen and hands back the structured bits: meeting times, addresses, phone numbers, tracking codes. Each one is ready to copy or act on.

  • Dates, contacts, links and codes in one pass
  • Nothing to select or highlight first
  • Copy each item with a single tap
Explore Smart Extract
Arc Smart Extract results listing structured data on Android
Arc home dashboard on Android

Turn your best prompts into one-tap actions.

Write a prompt once and it becomes an action you can run on any screen. Give it a global hotkey, or install actions the Arc community has already built for work and study.

  • Custom actions from your own prompts
  • Community library of ready-made actions
  • A global shortcut for any action
Explore Workflow Automation
Arc for Mac settings with a global shortcut assigned to AI Writer
Arc custom AI actions list on Android

Turn what you read into flashcards.

Generate a flashcard deck from the page, lecture notes or paper on your screen, then review it in Arc. It's the fastest way to turn reading into remembering.

  • Decks generated from any screen
  • Question and answer review mode
  • Saved to your library across devices
Explore Flashcards
Arc flashcard viewer showing a question card on a Mac
Arc flashcard answer on Android

500+ community actions, ready to run.

Browse a growing library of actions built and shared by Arc users, for work, study, writing and research. Filter by language, add one to your sidebar with a tap, and run it on any screen.

  • 500+ ready-made actions, free to install
  • Filter by category and language
  • Share your own actions with the community
Explore community actions
Arc for Mac community actions library filtered to English
Arc community actions browser on Android
How it works

Three seconds from question to answer.

  1. 1

    Summon Arc

    Press ⌃ Space on Mac, or tap the floating Arc bubble on Android. It opens over whatever you're doing.

  2. 2

    Pick an action

    Summarize, read aloud, write, chat, extract, or one of your own custom actions. You can also type a prompt.

  3. 3

    Use the result in place

    Insert it into the field, listen, copy, or save it to your library. Press Esc and you're back to work.

Privacy

It reads your screen only when you ask.

An assistant that sees your screen has to earn trust. Arc is on-demand by design.

Only when you tap

No background monitoring and no keylogging. Arc reads the screen when you run an action, and not otherwise.

Off in ~400 sensitive apps

Banking, crypto and password-manager apps are excluded automatically, and you can add your own.

Not stored on our servers

Screen content is processed for the answer, then discarded. Saved items stay on your device unless you turn on Drive backup.

Download

On the devices you use every day.

One account and one subscription. Your saved items follow you across platforms.

Recommended for you
Available

Android

A floating sidebar over every app, with every Arc feature.

Get it on Google Play
Recommended for you
Available

Mac

A ⌃ Space panel over any window. Notarized by Apple.

macOS 14.0+ · Apple Silicon & Intel · v1.0.2 Download for Mac
For your PC
Live

Windows

The same panel with Ctrl+Space, for every Windows app.

Windows 10 & 11 · x64 & Arm · Microsoft Store Get it from Microsoft
For your iPhone
In development

iPhone

Arc for iOS is in development. Get notified when it ships.

Get notified
Pricing

Start free. Upgrade when Arc earns it.

No ads, no expiring trial, and no card required to start.

Free

$0

Forever, on every platform.

  • 7 requests per week on basic features
  • Android, Mac and Windows
  • Use it as a guest, no account needed
  • No ads, no trial countdown
Get Arc free

Premium For power users

Unlimited

Priced in your local currency inside the app.

  • Unlimited AI summaries
  • Unlimited text-to-speech
  • AI chat about any screen
  • Workflow automation and custom actions
  • One subscription covers every platform
Start free, upgrade in the app
FAQ

Frequently asked questions

Something else? Email us and a human will reply.

Do I need to create an account?

No! You can use Arc as a guest. Google Sign-In is optional and only needed for cloud backup and community features.

Does Arc monitor my screen in the background?

Absolutely not. Arc only accesses screen content when you explicitly tap a button in the sidebar.

Are screenshots automatically captured?

No. Screenshots require your explicit permission and are only taken when you initiate an action that needs them.

Which apps work with Arc?

Arc works with virtually any app. However, it automatically disables itself in nearly 400 sensitive apps (banking, crypto, password managers) by default.

Is my data private?

Yes. Screen content is processed for AI responses but never stored on our servers. Your saved content stays on your device unless you choose Google Drive backup.

What are Custom Actions?

Custom Actions let you create your own AI commands. Write a prompt and save it to your sidebar for one-tap access.

What are Community Actions?

Community Actions are AI actions shared by other Arc users. Browse, search, and add them to your sidebar with one tap.

How does Chat with AI work?

Chat lets you have conversations about content on your screen. Ask questions, get clarifications, or explore topics further.

One account, across all your devices.

Stop copy-pasting into chatbots. Get the assistant that already knows what's on your screen, free on Android, Mac and Windows.