lastco.ai
Start free

AI agents + human experts, working for you

What company do you
want to create?

Type your idea below. Our AI agents + human experts build the idea, validate it with email campaigns, advertise it on Meta, Twitter/X & TikTok, and monetize it with Stripe payments and ads.

60,000+ businesses validated.
Built, validated & monetized — from just an idea.

01 · Validate

Email campaigns that prove demand

Cold emails written and sent for you, to researched leads in your exact market — real replies tell you it works before you spend big.

Cold email Researched leads
02 · Advertise

Ads on the networks that matter

Campaigns created and launched for you, right where your customers scroll every day.

Meta Twitter/X TikTok
03 · Monetize

Stripe payments & in-app ads

Checkout wired into your app and ads earning alongside — revenue lands right on your dashboard.

Stripe Ad revenue

How it works

Idea in. Business out. Three steps.

Try it now
01
Founder describing their idea to LastCo

Share your idea

Describe it in plain language. AI agents validate it with market research, find your customers, and shape your name, brand and logo.

02
LastCo building and marketing the app

We build & market it

Your app takes shape with human experts on your side, while cold emails reach researched leads and ads launch on Meta, Twitter/X & TikTok.

03
Revenue landing on the founder's dashboard

You monetize

Take payments with Stripe checkout and earn from ads running in your app — a real business, paying you on your dashboard.

What you get

Everything your idea needs to become a business

Cold email outreach

Real inboxes. Real replies.

"Hi Sofia — saw the rooftop events you plan around Austin. Bloomly delivers fresh arrangements your guests will remember…" Personalized emails, written and sent for you — to leads we researched for your exact market.
Live dashboard

Watch campaigns and revenue land in real time

While LastCo works you'll see a "Creating…" pulse — then each campaign goes live and every result appears automatically. No refresh.

Cold Email Campaign Active
TikTok Ad Creating…
Meta ad approved — now live
Social media ads

Ads where your customers scroll

Campaigns created and launched for you across the big three networks.

Meta Twitter/X TikTok
Stripe payments

Get paid from day one

$2,847 ▲ 18% this week, via Stripe checkout in your app
In-app ads

Earnings while you sleep

Run ads inside your app and stack extra revenue alongside payments.

Also in the box

A full brand kit, in sync everywhere

Business name, tagline, market research, brand guidelines and a designed logo — created automatically, and kept in sync between the web app and the iPhone / Android app.

AI-generated brand logo example
AI-generated brand logo example
AI-generated brand logo example

Pricing

A lot for free. More with Pro.

Free

Everything you need to shape and validate your idea.

  • Create business projects
  • Business name, tagline & market research
  • Researched customer leads
  • Project dashboard on web & mobile
Start free
Most popular
Pro

Unlock growth — outreach, ads and monetization.

  • Everything in Free
  • Complete lead emails for cold outreach
  • Ad campaigns on Meta, Twitter/X & TikTok
  • Monetization with Stripe & in-app ads
  • Full branding guidelines, unlocked
Go Pro

Coming soon

From idea to earning app, even faster

Working web, iPhone & Android apps Custom themes One-click app store setup

your idea + AI agents + human experts

= a real business that pays you

Start free — describe your idea

Free to start · Sign in with Google or Apple