Development: the software around the AI system.

API and payment integrations, web applications, iOS and Android apps, AI agents. For small and mid-size businesses that need engineers who stay, without hiring a department. Fixed price for the first build, hourly after that.

Custom work by the team behind our three products, priced after a free one-page plan. A small business usually starts with the AI front desk · all three products

Get a one-page plan in 48 hours Book a call
What we build

Five kinds of work, one team.

  • API and payment integrations. Booking systems, payment processors, CRMs, calendars, email. Done with Adyen and a spa PMS, with LatePoint and Square, with Google and Meta ad accounts, with GA4 server-side tracking.
  • Custom software and web applications. Next.js and React front ends, Python and Node back ends, Postgres. Admin panels, dashboards, order intake, internal tools that replace a spreadsheet.
  • Mobile apps. iOS and Android, native or Flutter. App Store and Play Store submissions handled, ongoing maintenance included in the monthly option. The World Spa app is one of ours.
  • Websites. WordPress or static, built for speed, booking and tracking. Content and SEO wired in from day one.
  • AI agents and automations. Telegram, Slack and website agents built for your business, connected to your tools, with memory. Details.
What it costs

Fixed first, hourly after.

Hourly rates for work beyond the first build run $120 to $250 an hour by role, in half-hour increments; the rate card comes with the one-page plan. The first build is always a fixed price, set in the plan.

One-page plan within 48 hoursScope, what it connects to, fixed price.Free
BuildFixed price after the plan, code in your repository.Sites from $3,000, apps from $30,000, an AI front desk $3,000
Marketing retainerSEO with articles, GEO, site support, Revenue Guard, the AI front desk’s monthly fee.$2,300 a month, all lines
AI OfficeA sales office under your team: outreach and follow-ups for your OK, a marketing analyst, a content writer, a project manager, the front desk.$4,500 setup through December 2026, then $12,000; $4,500 a month
Questions

Asked before every first build.

How do you charge for development?

The first build is a fixed price agreed after the free one-page plan. After that, changes and new features are billed by the hour, in half-hour increments, with a written estimate before anything over four hours.

Who does the work?

A team of five engineers and a designer in Kyiv, led by co-founder Yurii Shchemelov, with the founder in Brooklyn on every project. The person who scopes the work is the person who reviews it.

Do we own the code?

Yes. Source code goes into a repository you own from day one, data stays in your accounts, and the documentation is written so another team could take over.

What do you not take?

Work whose goal is a layoff, no-code chatbot setups a tool can do for you, and projects where nobody on your side can make decisions. We say so on the first call.

Describe what you need built. Get a one-page plan in 48 hours.

Scope, stack, fixed price for the first build. Free, from the founder.

Or talk first

Founder and CEO in Brooklyn, engineering office in Kyiv. Six people, the same ones across the whole engagement.

Prefer to talk first: book a call with Slava Phone: (929) 640-6940 Email: office@simple4u.io Based in Brooklyn, NY. We work with clients anywhere; in New York we come to you.

Your message reaches the founder directly.