Kumia is a persona of you, the CEO. It reads what you can't get to and does the routine the way you would.

There is nothing new to learn. It lives in the chats your company already uses, and you talk to it the way you'd talk to a chief of staff. Nothing goes out without you.

It can tell you what was waiting on you overnight, answer the board's question with the real number, chase the hiring plan Priya promised, or reply to Hartono the way you did last time.

Get Kumia

Use case 1

What was waiting on me overnight?

Kumia reads the chats while you sleep. In the morning it separates the few things only you can decide from the routine it has already drafted.

Kumia · Thursday 07:10
Overnight Kumia read 38 chats on WhatsApp, Lark and Rework. 412 messages.
B
You

What was waiting on me overnight?

K
Kumia
4 decisions need you. 11 routine replies are drafted and waiting.
  • WhatsApp · BoardAmara wants a yes or no on data-room access for the lead investor.by noon
  • WhatsApp · Hartono GroupArif asked to move to net-60. You held net-30 in March and July.draft ready
  • Lark · Ops LeadsPenang moved the audit to Friday. Finance hasn't been told.draft ready
  • Lark · HR weeklyPriya's Q4 hiring plan was promised for today.today
Kumia would like to send 11 routine replies as you 07:10
Example · WhatsApp · Jakarta distributor"Received, thanks Daniel. Ship the 40 units on the usual terms, invoice to Finance." · via Kumia
✓ Allow onceAlways allow routine replies in these 6 groupsNot now
Nothing has been sent. The four decisions wait for you. The eleven routine replies go out when you press Allow, or on their own from now on if you press "Always allow" for those six groups.

Use case 2

Revenue by pipeline this month?

Ask in plain words, during the meeting. Kumia takes the figures from your systems and shows where each one came from.

Kumia · Friday 14:02 · board call
B
You

Revenue by pipeline this month? And why is Enterprise behind?

K
Kumia
$412k booked, $288k paid. Enterprise is $60k behind plan because two deals slipped to next month.
$214kSMB · on plan
$158kMid-market · +12% vs plan
$40kEnterprise · 2 deals slipped

The two deals: Meridian Logistics ($38k, legal review) and Sunway Retail ($22k, waiting on their CFO). Both have a next step this week.

Sources sales.pipeline · 41 dealscommerce.invoices · Novdeal notes · Meridian, Sunway
B

Get Kenji and Lin to unblock both by Monday.

Kumia would like to create 2 tasks in Rework Project, for Kenji and Lin, due Monday 14:03
✓ Allow onceAlways allow tasks for my direct reportsNot now
The answer names the two deals and lists its sources, so you can defend the number in the room. Creating two tasks for your team is an approval too: in Manual mode, anything that reaches people waits for you.

Use case 3

Did Priya send the hiring plan?

Kumia remembers what people promised you, and when. It finds the thread and what changed since, and drafts the reminder in your words.

Kumia · Thursday 16:40
B
You

Did Priya send the hiring plan?

K
Kumia
Not yet. She promised it for today, in Lark · HR weekly on Oct 29.
  • Oct 29 · Lark · HR weeklyPriya: "I'll have the Q4 hiring plan to you by the 13th."due today
  • Nov 6 · Lark · HR weeklyPriya: "Plan is 80% there, waiting on Finance's headcount budget."context
  • Nov 11 · Rework · RequestFinance approved the headcount budget.unblocked

Finance unblocked her two days ago. Want me to ask, as you?

Kumia would like to message Priya as you 16:41
Lark · direct message"Hi Priya, is the Q4 hiring plan still landing today? Finance signed off the budget on Tuesday, so nothing should be blocking it. Need it before the board call tomorrow."
✓ SendEditNot now
The promise came from Lark, the approval from Rework. Kumia connected the two, so the reminder tells Priya what changed instead of just asking again.

Use case 4

Reply to Hartono the way I would.

Kumia drafts from your past positions and the rules you wrote in your persona. You read it, change a word, and send it as yourself.

Kumia · Thursday 09:15
B
You

Reply to Hartono the way I would.

K
Kumia
Drafted. Same position as March and July: hold net-30, offer 2% for early payment.

Dewi decides; Arif only recommends. Their volume is up 30% this year, which is why they're asking now. Your persona says "never move on terms in the first reply; trade something smaller instead."

From your past replies · Mar 14, Jul 2persona · "terms" ruleRework · Hartono account
Kumia would like to reply in WhatsApp · Hartono Group, as you 09:16
WhatsApp · Hartono Group · to Dewi"Dewi, we'll keep net-30 as agreed. If cash flow is the issue, I can do 2% off for payment within 10 days, starting this quarter. Let me know and I'll have Finance update the terms." · via Kumia
✓ Send as meEditNot like this
The draft explains itself: which past replies it used, which persona rule applied, who decides on the other side. "Not like this" teaches it; the next draft is closer.

How it stays yours

Three settings decide what Kumia may hear, how it writes, and how much it may do without asking.

It lives in your chats.

WhatsApp, Zalo, Rework and Base today, Lark next. You choose which groups and one-to-one chats it may hear, and the smaller set where it may write. Nothing is heard until you choose.

Kumia · Settings
Persona
Memory
Knowledge
Connectors
Name and job
Brain and model
Chat
Permissions and budget
Account
You
WhatsApp
Linked as Brian · +60 12 ··· 4471
Link againDisconnect
Only theseBoardInvestors Q4Hartono GroupJakarta distributor+ 9 more
Only theseHartono GroupJakarta distributor+ 4 more
All except theseFamilyDoctor
None
Lark
Connected as Brian · Meridian Holdings
Disconnect
Only theseOps LeadsHR weeklyPenang plant+ 11 more
It writes only where you allowed, under your name, with "via Kumia" on the first line.Save
Settings › Chat. WhatsApp and Lark are linked to Brian's own accounts. On WhatsApp, Kumia may listen in 13 groups but write in only 6, and never in one-to-one chats. Family and the doctor are excluded from listening entirely. Lark has its own rules below.

It is a persona of you.

You write down how you decide, what you never say, how short your yes is. Every draft starts from those words. When you correct a draft, it remembers why.

Kumia · Settings
Persona
Memory
Knowledge
Connectors
Name and job
Brain and model
Chat
Permissions and budget
Account
You
Brian · in use since Oct 22 · version 4

How I decide. Fast on reversible things, slow on people and terms. If a question can be answered with a number, answer with the number first.

Terms. Never move on payment terms in the first reply. Trade something smaller: a discount for early payment, a delivery date, a pilot.

How I write. Short. First name, no "Dear". One ask per message. "Let me know" is fine; "please kindly" is not. Never exclamation marks.

What I never do in a chat. Promise a hire. Discuss salaries. Commit a date for Product. Agree to a price in a group.

Who decides. Hartono: Dewi decides, Arif recommends. Board: Amara speaks for the lead investor.

1,284 characters · last edit by you, Jul 3 ("added the terms rule after the Sunway call")Save persona
Settings › Persona. The words Kumia reads before every draft: how you decide, what you never do in a chat, who decides on the other side. The highlighted rule was added in July after a similar ask. It is why the Hartono reply in use case 4 held the line.

It asks before it acts.

It starts in Manual and asks before every message. When you trust it with the routine, you widen what it may do on its own. It never deletes anything, never changes who can see what, and never moves a private message into a group.

Kumia · Settings
Persona
Memory
Knowledge
Connectors
Name and job
Brain and model
Chat
Permissions and budget
Account
You
Permission mode
ManualAsks before every message and change.
PlanReads and proposes a plan. Changes nothing until you approve it.
Accept editsCreates and edits data in your apps. Asks before anything reaches people.
AutoAlso answers people who write to it. Asks before anything else that reaches people.
Always allowed
Routine repliesin Jakarta distributor, Suppliers MY, Logistics 3PL · added Nov 4
Read Finance's monthly closeRework · Accounting · added Oct 30
Spending limit
$5.00 · $0.42 used today
In every mode: never deletes, never changes access, never carries a private message into a group.Save
Settings › Permissions and budget. Kumia is in Manual, so it asks before every message. Two rules were added over time by pressing "Always allow" on approval cards: routine replies in three supplier groups, and reading the monthly close. Spend is capped at $5 a day on your own AI account.

What the other side sees

The same day, from the other side. Every message Kumia sends in your name carries "via Kumia", so nobody is misled about who typed.

Jakarta distributorDaniel, Rina, you · WhatsApp
DanielPak Brian, can we ship the 40 units this week? Same terms as last time?06:48
Brian · via KumiaReceived, thanks Daniel. Ship the 40 units on the usual terms, invoice to Finance.07:12 ✓✓
DanielNoted, shipping Thursday 🙏07:15

Daniel asked at 06:48, before you were up. Kumia drafted the answer from your last three orders with him. At 07:12 you approved it from your morning list. Daniel sees a normal message from you, marked "via Kumia".

Priya NairDirect message · Lark
Brian · via KumiaHi Priya, is the Q4 hiring plan still landing today? Finance signed off the budget on Tuesday, so nothing should be blocking it. Need it before the board call tomorrow.16:42 ✓✓
PriyaYes, sending by 6pm. Sorry, didn't see Finance's approval.16:50

You asked Kumia whether Priya had sent the plan. It wrote this reminder, including the Finance approval it had seen in Rework two days earlier. You read it and pressed Send. Priya answered in eight minutes.

Hartono GroupDewi, Arif, you · WhatsApp
ArifWith the volume this year we'd like to move to net-60 from January.Yesterday
Brian · via KumiaDewi, we'll keep net-30 as agreed. If cash flow is the issue, I can do 2% off for payment within 10 days, starting this quarter. Let me know and I'll have Finance update the terms.09:18 ✓✓
Dewi2% works. Let's do that.09:41

Arif asked for net-60 on Wednesday evening. Kumia drafted this reply from the position you took in March and July. You changed one word and sent it as yourself. Dewi, who decides, accepted within half an hour.

BoardAmara, Kenji, Lin, you · WhatsApp
AmaraBrian, yes or no on data-room access for the lead investor? Need it by noon.22:30
Yes. Full access from today. Kenji, please set it up.07:31 ✓✓
This one Kumia didn't send. It put it first on your list and waited for you.

Amara asked late Wednesday night. Kumia did not draft a reply, because board decisions are yours. It put her question first on your morning list, with the background. You typed the answer yourself.

Get Kumia

Kumia is a desktop app. It runs on your own computer and keeps working from the tray while you're away. It thinks with your own Claude or ChatGPT subscription. We're in early access, so builds are sent by email after a short call.

macOS

macOS 13+ · Apple silicon or Intel

Request the Mac build

Windows

Windows 10/11 · x64

Request the Windows build

Linux

Ubuntu · .deb or AppImage

Request the Linux build
  • WhatsAppGroups and one-to-one
  • ZaloGroups and one-to-one
  • ReworkChat, deals, projects, requests
  • BaseChat and apps
  • ClaudeYour subscription or API key
  • ChatGPTYour subscription or API key
  • LarkComing
  • TelegramPlanned

Who's behind Kumia

Kumia is made by the team behind Rework. We use it ourselves first, then with the CEOs we work with every week.

We sell one thing, the app. There is no hosted version and no Kumia account. Your persona and its memory stay on your computer, the app never keeps your password, and your AI bill goes to Anthropic or OpenAI, not to us.

Try Kumia

We set each CEO up personally, in a 30-minute call. Leave your email and we'll write to you.