ka is an ai personal assistant you text on iMessage. it runs your email, docs and calendar, sends reminders before you ask, and makes plans with your friends' ka's.

does ka work on iMessage?

yes. you save the number ka gives you and text it like you'd text anyone. the replies come back as blue bubbles in the same thread.

you sign up, you get a number, you text it. ka works out what you actually want, does it, and tells you what changed. it remembers your past texts, so you never re-explain yourself.

do i need to download an app?

no. ka is a number in the messages app that's already on your iphone.

does ka work on android?

yes. ka is built for iMessage and that's where most people use it, but if you're on android it falls back to green bubbles and works the same way. you just miss the imessage-only extras like typing indicators and read receipts.

how much does ka cost?

$19 a month, flat. that's the whole price, billed monthly. you can cancel any time from your account and you keep access through the end of the month you've paid for.

how is ka different from chatgpt?

chatgpt is a chat window you open and type into. ka lives in iMessage, next to your actual friends, and it goes and does things: books the thing, moves the meeting, sends the reminder before you ask. it also remembers you between conversations without being asked.

what can ka actually do?

you connect google calendar, gmail, sheets, docs, and drive, and ka works inside them. booking and moving events, reading and sorting your email, keeping trackers up to date, writing up a whole doc, finding a file and texting you the link. it reads photos you send, searches the web, and remembers details about your people and plans. text it what you want and it'll either do it or tell you it can't.

can i send ka a photo?

yes. send a picture and ka reads what's in it, then does the thing. a receipt goes into your expenses sheet with the right total and merchant, a flyer or invite becomes a calendar event, a whiteboard list becomes rows. you can add a caption or send the photo on its own. if part of it is too blurry to read, ka tells you instead of guessing.

what apps does ka connect to?

google calendar, gmail, google sheets, google docs, and google drive today, each connected in one tap from your account page. connect only the ones you want. ka only touches them when you ask it to, and you can disconnect any of them at any time without cancelling.

is my phone number safe?

yes. we never sell, rent, or share your phone number with advertisers or data brokers. we use it to text you and nothing else, and you can delete your account and your data whenever you want. see the privacy policy for the details.

any time, in a couple of clicks, no email or phone call required. there's no cancellation fee and no minimum term. you keep ka until the end of the period you already paid for, then it stops.

what happens when my friends have ka too?

your assistants talk to each other. instead of a twelve-message group chat about when everyone's free, your ka and your friends' ka's work out the time and the place and each of you just gets a confirmation. that's where the product is going.

ka vs chatgpt

chatgpt is a chat window you open, ask, and then act on yourself. ka is a number you text on iMessage that goes and does the task: books the event, moves the meeting, sorts the inbox, then tells you what it changed. they are different tools, and for most people the honest answer is that you want both.

the actual difference: answering vs doing

both are built on large language models, so the quality of the understanding is broadly similar. the difference is what happens next. ask chatgpt to move your 3pm and it will write you a very good message about moving your 3pm. ask ka and your 3pm moves.

that gap is most of the work. personal admin isn't hard to decide, it's the twelve seconds of tapping between deciding and it being done, forty times a week. a tool that removes the deciding and keeps the tapping removed the easy half.

where chatgpt is better

research and long-form writing. a text thread is a bad place to read two thousand words. chatgpt wins outright.
images, code, files, voice. ka is text only, by design. it has no canvas and no file upload.
open-ended thinking. if you want to argue with something for twenty minutes, use the chat window.
free. chatgpt has a real free tier. ka does not.

where ka is better

it takes the action. connected to google calendar, gmail, sheets, docs and drive, so the task ends done.
zero friction to reach. it's in the messages app you already check a hundred times a day.
it remembers without being told to. your people, your preferences, the thing you mentioned last month. you never re-explain.
it can reach you first. a reminder arrives as a text in a thread you already read, not a notification you swipe away.

why texting instead of an app

an assistant only helps if you actually reach for it. every app is a decision to open it, and most productivity apps die in that gap, not from missing features. putting the assistant in your iMessage thread means the interface is one you already open a hundred times a day out of habit.

it also means there is nothing to learn. you write “cancel thursday, i’m sick” the way you would to a friend, and that is the whole interface.

common questions

can chatgpt manage my calendar?

not on its own. chatgpt can draft an invite or reason about your schedule, but you paste the result into your calendar yourself unless you have set up connectors. ka connects to google calendar directly and creates, moves and cancels events for you.

is ka just chatgpt in iMessage?

no. the difference is what happens after the model decides what to do. ka has tools wired to google calendar, gmail, sheets, docs and drive and actually performs the action, then confirms what it changed. a chat window returns text and leaves the doing to you.

which is cheaper, ka or chatgpt?

chatgpt has a free tier and a $20/mo plus tier. ka is $19/mo. if you want a general research and writing tool, chatgpt is the better buy. if you want something that runs your calendar and inbox over text, that is what ka is for.

so which one

if you are choosing one: chatgpt if you mostly want to think, research and write; ka if you mostly want the admin of your life to stop being your job. they overlap less than the category name suggests. you can read more about how ka works or why it lives in iMessage.

try it for a month.

$19/mo. cancel whenever.

text ka