Sen Get early access

Sen

Dream it. Build it.

An AI assistant that lives on your computer.

Get early access

One Sen. Three ways to use it.

Pick the mode that fits what you’re doing. Switch any time with one tap at the top of the app.

SenFor everyday life

Your personal assistant

Ask in plain words. Sen reads your email, writes the reply and waits for your OK.

  1. You ask in plain words
  2. Sen reads the email and writes a reply
  3. Nothing is sent until you say OK

Also: documents, research, pictures and everyday tasks.

SenDevFor building software

Build real software

Describe what you want. Sen plans it, writes the code and checks that it works.

  1. You describe the idea
  2. Sen shows a plan first. You say go.
  3. It builds, tests and shows a preview

Every change can be undone. Already use Claude Code, Codex or Devin? They run right inside.

SenBotFor work that never stops

Bots for every job

Create bots with their own name, job and inbox. They work on their own schedule.

  1. Give your bot a name and a job
  2. It gets its own inbox and schedule
  3. It asks before it sends

Also: add bots to your team’s Telegram or Discord group.

SidebarFiles
Pair phoneCallConfig

  1. SenFor everyday life

    SenFor everyday life

    Your personal assistant

    Ask in plain words. Sen reads your email, writes the reply and waits for your OK.

    1. You ask in plain words
    2. Sen reads the email and writes a reply
    3. Nothing is sent until you say OK

    Also: documents, research, pictures and everyday tasks.

  2. SenDevFor building software

    SenDevFor building software

    Build real software

    Describe what you want. Sen plans it, writes the code and checks that it works.

    1. You describe the idea
    2. Sen shows a plan first. You say go.
    3. It builds, tests and shows a preview

    Every change can be undone. Already use Claude Code, Codex or Devin? They run right inside.

  3. SenBotFor work that never stops

    SenBotFor work that never stops

    Bots for every job

    Create bots with their own name, job and inbox. They work on their own schedule.

    1. Give your bot a name and a job
    2. It gets its own inbox and schedule
    3. It asks before it sends

    Also: add bots to your team’s Telegram or Discord group.

More than a chat.

Skills that come with Sen, ready whenever you need them.

  • All your mailboxes.

    Connect Gmail, Outlook or almost any other mailbox. Sen reads, searches and drafts replies — and sends only when you say so.

    Works withGmailOutlookiCloudYahooProton Mail

  • Real office files.

    Reads, writes and edits Word, Excel and PowerPoint files, and turns notes into a finished PDF.

    Works withWordExcelPowerPointPDF

  • Looks things up.

    Searches the web, reads the pages for you and can open sites in a built-in browser you can watch.

  • Just say it.

    Dictate instead of typing, or call Sen and talk it through. Calls are saved on your computer, so you can pick one up later.

  • Pictures on request.

    Describe an image and Sen creates it — a cover, a logo idea, a birthday card.

    Works withChatGPTGeminiGrok

  • Remembers what matters.

    Your preferences, names, the way you like things. Tell it once. You can see and edit everything it keeps.

  • Learns new tricks.

    Add skills and add-ons from the built-in marketplace whenever you need Sen to do more.

  • Works on a schedule.

    Set a job up once, like a morning inbox summary. Sen does it on time while it’s running.

It can use your apps, too.

Some jobs live in an app, not in a chat. Sen can open it, click, type and fill things in while you watch.

  1. You ask in plain words
  2. Sen works in the app, field by field
  3. It waits for your OK before the last click
  • Off until you turn it on
  • Stop it any time with one click
  • Stays out of your password manager

Windows, Mac and Linux

Works with your apps.

Your apps. One conversation.

Ask once. Sen works across the apps you already use.

One request. Three apps.

Sen reads the email, builds the model and writes the plan, one after the other.

Built in, or plugged in.

Email is built in. Almost any other app plugs in as an add-on.

  1. Found Lea’s email2 sketches attached
  2. Modelled the lamp3 renders
  3. Wrote the plan5 tasks
  • Sen
  • Built inGmail, Outlook and almost any mailbox. You sign in with Google or Microsoft, so Sen never sees that password.
  • Gmail
  • Outlook
  • iCloud Mail
  • Proton Mail
  • Add-onsBlender, Figma, Notion and many more plug in through add-ons (MCP), made by the app’s maker or the community.
  • Blender
  • Figma
  • Notion
  • GitHub
  • Slack
  • Google Drive
  • Google Calendar
  • Linear
  • Canva
  • Spotify
  • Home Assistant
  • Airtable
  • Todoist
  • Obsidian
  • Trello
  • Dropbox

Use it wherever you are.

  1. At your desk.

    Hand Sen something big on your computer. It keeps working on it while you get on with your day.

    Windows, Mac and Linux

  2. On the go.

    Your phone is paired with your computer. See how far Sen is, get a note when it’s done, reply or say OK from anywhere.

    iPhone and Android

  3. In your chats.

    Or just text your bots on Telegram or Discord, like messaging a friend.

    Telegram and Discord

One Sen. Wherever you are.

Start at your desk, check in on the go, text it at night.

Questions? Ask Sen.

Tap a question. Sen answers in plain words.

What is Sen?

Sen is an AI assistant that runs on your computer. You tell it what you need in plain words, and it does the work: email, documents, research, building software, or running bots that take care of jobs for you.

What’s the difference between Sen, SenDev and SenBot?

They’re three modes of the same app. Sen is your everyday personal assistant. SenDev adds your projects, a code editor and a terminal for building software. SenBot lets you create bots with their own jobs that you can message on your desktop, in Telegram or in Discord. Switch between them any time at the top of the app.

Do I need to know how to code?

No. Sen and SenBot are made for everyone. SenDev is there when you want to build software — and it explains what it’s doing as it goes.

What can a bot do?

Whatever job you give it: remind customers about unpaid invoices, follow up on new leads, plan your social media posts, or send you a reminder every morning. Each bot has its own instructions, memory and schedule, and can have its own Gmail or Outlook account. Bots run on your computer, so it needs to be on for them to answer.

Is my data private?

Your files, chats and email stay on your computer. When Sen uses the AI, it talks directly to the provider you pick, like OpenAI, Anthropic or Google, and their privacy terms apply to what you send. Nothing passes through Sen’s servers. They only handle your sign-in.

Can Sen use other apps on my computer?

Yes, once you allow it. This is off until you turn it on. Then Sen can open an app, click, type and fill things in for you. While it works, a sign at the top of your screen says Sen is in control, with a Stop button. Clicking and typing follow the same ask-first settings as the rest of Sen, and it stays out of password managers.

Is it safe to let an AI send emails?

Sen asks first. Before it sends an email or runs something on your computer, it shows you what it wants to do and waits until you allow it. You can also switch email sending off completely.

Which AI does it use?

The one you pick: ChatGPT, Claude, Gemini, Grok, DeepSeek and others. Sign in with a ChatGPT or Grok subscription you already have, or add your own key.

Can I use Claude Code or Codex with it?

Yes. SenDev can run Claude Code, Codex, Devin, OpenCode and Antigravity right inside Sen, using the account you already have with each tool. You can follow their work and answer their questions from your phone too.

Does it work with my email?

Yes. Sign in with Gmail or Outlook, or connect most other mailboxes, like iCloud, Yahoo, GMX or WEB.DE. Proton Mail works through Proton’s Bridge app. Sen can find, read and write emails for you.

What does it cost?

Pricing will be announced before launch, and early-access members hear first. For the AI itself, you can use a ChatGPT or Grok subscription you already pay for, or your own key for Claude, Gemini and others. Then you pay that provider directly.

When can I get it?

Early access opens in waves, starting with the desktop app for Windows, Mac and Linux. Join the list and we’ll email you when it’s your turn.

Be among the first.

Early access starts with the desktop app for Windows, Mac and Linux. We invite people in waves and send one email when it’s your turn.

We’ll only email you when it’s your turn. No spam, no sharing. Privacy

  1. 1Join the listJust your email. Nothing to install yet.
  2. 2We invite in wavesSmall groups at a time, so everyone gets a smooth start.
  3. 3Get the appOne email with your download for Windows, Mac or Linux.