Finances
Logs expenses by voice, screenshot or text, reads receipts, tracks budgets and tells you on the spot what's left.
YOUR AI PERSONAL ASSISTANT
An assistant that acts, not just answers.
César organizes what crowds your head — finances, email, calendar, tasks — through conversation. You write in your own words; he understands, acts and remembers.
Start for free
Free. No credit card. First request in under a minute.
0:04 Voice note: spent 48 90 on lunch, on the card
“spent 48 90 on lunch, on the card”
Logged: R$ 48.90 under Food, on the credit card, today. You've used 62% of this month's food budget.
log this
Read the receipt: R$ 213.40 at Supermercado Real, Saturday, debit card. Logged under Groceries.
how much did I spend on groceries this month?
R$ 842.17 in August — 12% less than July. The biggest one was Saturday, R$ 213.40 at Supermercado Real.
how much are AirPods Pro 2? find the cheapest
Lowest price right now: R$ 1,699 at Amazon (cash). Magalu R$ 1,849, Mercado Livre R$ 1,879. Want me to alert you if it drops below R$ 1,600?
yes please
is Coco Bambu at Iguatemi mall in SP worth it?
4.6 on Google (8,000+ reviews). People praise the shrimp dishes and generous portions; they complain about the Sunday wait. Best bet is Friday dinner. Want me to book?
watch flights São Paulo → New York for Friday and tell me if the price drops
Done. I'll check every day at 8am and let you know when the price changes.
Alert · Tue, 08:02It dropped: R$ 3,190 round trip on LATAM (was R$ 4,480). Shall I book?
summarize today's emails, which ones need a reply?
23 emails, 2 need a reply: your accountant wants July's statement by Friday, and the building confirms the meeting on the 28th. Draft the reply to the accountant?
book lunch with Ana Thursday 12:30 and block 1h of workout every day
Done: Lunch with Ana, Thursday 12:30, and workout 7–8am Monday to Friday. Invite Ana at her email?
WHAT HE DOES
Everything crowding your head, in one place.
Summarizes what came in, flags what needs a reply and drafts the answer for you to approve.
Calendar
Creates, reschedules and organizes your week. “Dentist Friday morning” becomes an event — and a heads-up to whoever needs it.
Tasks
Notes what you asked for mid-conversation and reminds you on the right day. Nothing lives only in your head anymore.
Travel
Searches flights, compares prices, builds the itinerary — and watches the fare to warn you when it drops.
Places and shopping
Finds the well-rated restaurant near you, compares product prices and sums up what the reviews say.
Memory of everything
Remembers what you said weeks ago — the name, the amount, the deal — without you having to repeat it.
Proactive automations
Watches prices, deadlines, news and important dates and warns you before it becomes a problem.
HOW IT WORKS
Three steps and he's already working for you.
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Create your account
Free, right in the browser. With email or your Google account.
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Connect what you want
Calendar, email, files — you choose what he can see, with the permissions you grant.
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Ask in your own words
No menus, no forms. Write as you would to a person — and watch it happen.
TRUST
The power to act, with you in control.
Nothing happens without you
Sending an email, deleting an event, making a payment — every action that really changes something asks for your explicit confirmation. Always.
Your permissions, revocable
Integrations use the accounts you connect, with the permissions you grant — and nothing beyond them. Revoke whenever you want, from your profile.
Transparent usage
AI usage stays visible: how much was used this month, how much it cost and on what. No surprises on the bill.
FREQUENTLY ASKED QUESTIONS
What everyone asks before getting started.
What does César do?
César is an AI personal assistant that organizes finances, email, calendar, tasks and travel through conversation. You write in your own words and he understands, acts and remembers.
Is César free?
Yes, creating your account is free. AI usage is always visible to you, with how much was used this month and on what.
Can César act on my account on his own?
No. Actions that really change something — sending an email, deleting an event, making a payment — ask for your explicit confirmation. César never does that kind of thing on his own.
Is my data safe?
Integrations use the accounts you connect, with the permissions you grant — and nothing beyond them. You can revoke access at any time from your profile.
Do I need to install anything?
No. César works right in the browser, on desktop and mobile. Create the account and start talking.
Stop carrying everything in your head.
Create your free account, send the first voice note and watch César handle it in under a minute.
Start for free