SSim Sim
Test mode

Your personal assistant — that answers when you call.

Sim Sim talks back, remembers your life, checks its facts, and follows through — like a real assistant, comfy as home.

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Welcome to Sim Sim

No password, ever. We email you a link — tap it, you're in.

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Welcome to Sim Sim

Dev door — no verification

Check your inbox

Your sign-in link is on its way to

The link works once — tap it on this device for the smoothest ride.

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Confirm your email

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Signing you in…

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That didn't work

Call it by name

It listens for its name and answers out loud. Hands busy, across the room — just call.

It remembers your life

Your notebook: your name, your people, your deadlines. It answers according to YOUR life, not the internet's guess.

Answers you can check

For facts that matter, Sim Sim opens the book and shows its source. No source? It says so — it never bluffs.

It follows through

Every task is tracked until YOU say it's done, and your morning briefing has it all waiting for you.

Make it yours

Pick your colors, name your two helper bots. Your team, your colors, your vibe.

SIM SIM can handle it All

Study & knowledge · Daily life · Work & creating · Your connected apps · Voice & memory — one assistant that does all of it together; you just talk.

Your notebook is yours. See everything Sim Sim remembers, edit it, delete it — anytime. We ask little, we show you all of it.

Sim Sim — your personal assistant.
Step 1 of 2

First, a little about you

Gender

Step 2 of 2

Now make it yours

Meet your team
S Sim SimYour assistant · the chief
R
C

What theme you like

SSim Sim

    Side chats

      Your side chats show here. Tap + to start one.

      Sim Sim

      Test mode
      To let the mic work: click the mic icon in Chrome's address bar (or the icon at its left), set Microphone to Allow. Listening starts again by itself — if it doesn't, reload the page.
      S

      Hi there

      Talk or type below to start.

      Your profile

      S Sim Sim's facePick, upload or make the face your assistant shows.

      What Sim Sim remembers

        Nothing yet — tell me something worth remembering.

        How listening works

        Listening works while Sim Sim is open in Chrome.

        Sim Sim hears you through Chrome's built-in voice typing. To turn your voice into words, Chrome sends it to Google's speech service — that's how the free built-in tool works, and it happens whether or not you say the name. Words without your assistant's name never reach Sim Sim's server or its brain, and Sim Sim never saves them — but they do pass through Google first. Want the mic off except when you choose? Turn Listening off and type instead — or use push-to-talk, where the mic only runs while you hold the button (it uses the same Google service while it runs).

        Settings

        Account

        Appearance

        Text size
        Faces
        S Sim Sim's faceOnly the face changes. The name is always Sim Sim.
        The face Sim Sim made from your words

        Voice

        Speak answers
        Speaking speed
        Sim Sim's voice

        Briefing & loops

        Morning briefingYour briefing is ready when you open Sim Sim.
        Open-loop remindersThe gentle once-a-day heads-up when something is due soon.

        Permissions

        What Sim Sim may do in the app when you ask it. Allow: it just does it. Ask me: a card pops up in the chat first. Never: it won't, and tells you why.

        Always asks — these can't be turned off

          Saved logins are part of this: Sim Sim doesn't use them today, and using one is on the always-asks list, so it will ask every time.

          Connected apps

          GoogleGmail · Calendar · Drive · YouTubeNot connected
          InstagramComing soon
          FacebookComing soon

          Data controls

          What Sim Sim remembers

            Nothing yet — tell me something worth remembering.

            Download my dataOne file: profile, notebook, learned memory, open loops, settings, Discussion picks and chat history.Download
            Forget everythingErases your profile, notebook, learned memory, open loops, settings, Discussion picks and chat history. Saved logins stay until you delete them below. Pictures Sim Sim drew for you, and pictures you uploaded as its face, stay on the server.
            Let my picks help improve Sim Sim for everyoneOff by default. This only saves your choice — nothing is shared today.

            Saved logins

            Add VAULT_KEY to .env to turn on Saved logins

              No saved logins yet.

              Stored encrypted on the Sim Sim server. Sim Sim never reads these to answer you, never puts them in your notebook, and doesn't sign in for you.

              Help & support

              Call Sim Sim by name. Keep Sim Sim open in Chrome with Listening ON. Say "Sim Sim", then ask — you'll hear a chime, or see "I'm here" when Speak answers is off. You can also press the orange mic, or just type.

              Your notebook. Sim Sim writes down what you tell it about your life — and the things you have to do, in Open loops — so it remembers next time. You can see, edit and delete everything it remembers in your Profile (click your name) or here under Data controls.

              Where things are. Settings is the gear at the bottom of the sidebar. Your basics and memory are in your Profile. Your own separate chats are under Side chats, below Chat.

              Listening works while Sim Sim is open in Chrome.

              Sim Sim hears you through Chrome's built-in voice typing. To turn your voice into words, Chrome sends it to Google's speech service — that's how the free built-in tool works, and it happens whether or not you say the name. Words without your assistant's name never reach Sim Sim's server or its brain, and Sim Sim never saves them — but they do pass through Google first. Want the mic off except when you choose? Turn Listening off and type instead — or use push-to-talk, where the mic only runs while you hold the button (it uses the same Google service while it runs).

              Legal

              Terms

              Sim Sim is an early prototype, built by Hassan Ali for the Meta AI developer hackathon. It can be wrong.

              For anything that matters — law, money, health, deadlines — check the official source. Sim Sim shows its source for precise answers, and says so when it has none.

              Sim Sim is not for emergencies, and it is not a lawyer, doctor or financial adviser. Use it for your own personal, lawful use.

              Privacy

              What is stored, and where. Your profile, your notebook (what Sim Sim learned about you), open loops, settings, chat history, morning briefing, Discussion picks, pictures you asked Sim Sim to draw, the face you chose for Sim Sim (a picture you upload as its face is saved so it can be shown), and saved logins. All of it is stored on this Sim Sim server, kept separately for each account. Pictures you show Sim Sim in chat and screen snapshots are not saved.

              The brain. Sim Sim's thinking is done by Meta's Model API. To answer, draw pictures and find official web pages, Sim Sim sends your message, and the parts of your notebook it needs, to Meta.

              Listening. Chrome's built-in speech recognition handles the mic first: Chrome sends what the mic hears to Google's speech service to turn it into words. Words without your assistant's name never reach Sim Sim's server or its brain.

              Sign-in uses Google Firebase, which sees your email address.

              Saved logins are encrypted on the server. They are never sent to the brain, never go into your notebook, and are not in your data download.

              Nothing is sold. There are no ads.

              Your control. Download all your data, or erase it with Forget everything, under Data controls. Saved logins are deleted one by one under Saved logins.

              Your picks teach your team your taste. They're saved privately — just yours, never shared.

              S

              Good morning

              Preparing today's briefing…

              Browser

              Sim Sim browses in its own browser, inside Sim Sim — this panel is its screen. It never uses your Chrome. For now it can only look and read: no clicking, typing or downloads.

              What Sim Sim's browser is showing

              The browser isn't open yet. Ask Sim Sim to look something up, or open a page here.

              What Sim Sim did

                Your pictures

                Pictures Sim Sim made or edited for you, newest first. Pictures you share in chat aren't saved, so they aren't here.

                  No pictures yet. Ask Sim Sim to make one — like "make a picture of a husky in the snow".

                  Download

                  Open loops

                    Nothing open. When you tell me something you have to do, I'll keep it here until you say it's done.

                    Closed (0)

                      Reminders

                      A reminder shows at the top of your chat when it's due — while Sim Sim is open on this computer. It can't reach your phone when the app is closed.

                        No reminders. Say "remind me in 20 minutes to stretch" or "remind me at 7 pm to call the store".

                        Download
                        Watching your screen

                        Sim Sim can see your screen, but it can't click or type — you stay the hands.

                        Keep this tab open while I watch — closing Chrome ends the watch.

                        Press the mic to talk. Chrome sends what the mic hears to Google to turn it into text.

                        Frozen — circle the part you mean, then ask (type in the mini chat, or say it).