Lean Do IT by R-SOFT

App / software cost estimator

Cost + timeline + project scope in 2–3 minutes.

  • Free estimate
  • No email to start
  • No credit card

Trust & compliance

Built for confident procurement decisions

Savings explorer

See how AI-assisted delivery changes the math

Adjust scope inputs to explore indicative savings. Final pricing always comes from your completed questionnaire and fixed offered price.

Project scope
Feature complexity
Expected user scale
Traditional estimate —
Lean Do IT offered range —
Indicative savings —

Illustrative only. Your actual offered price is calculated from questionnaire answers, COSMIC-style complexity factors, and phase-weighted AI productivity assumptions.

What you receive

More than a number on a slide

Every estimate is designed for procurement-ready transparency — scope, architecture, phases, and a clear path to order.

Proof: a shipped product

Fluentico: from specification to a live app

Fluentico is a cross-platform language-learning app built with Flutter. The project started as a Lean Do IT questionnaire and shipped to the App Store and Google Play.

Process

See the result first. Get the full specification by email.

    Delivery model

    Fixed price, full ownership, no surprise fees

    Infrastructure, third-party API usage, app-store fees, and client-supplied artifacts are excluded unless explicitly listed in your offer — matching the disclaimers in your estimate report.

    Capabilities

    Built for real software projects

    The questionnaire captures mobile, web, desktop, and backend layers — plus security, compliance, scale, and QA expectations.

    Why it matters

    Buy software development with evidence, not guesswork

    Lean Do IT is designed for teams who need a credible baseline before signing a contract — without weeks of discovery workshops.

      FAQ

      Questions teams ask before ordering

      Contact

      Talk to us about your project

      Prefer a human conversation before using the calculator? Send a message — we respond to serious product inquiries at .

      What will your app cost?

      Cost + timeline + project scope in 2–3 minutes. No email to start.