Software product development

Software for your business,
built in fixed-price stages.

Storefronts, customer portals, internal tools and platforms. Your product is split into small MVPs. Each has a fixed price, ends in working software, and is accepted at a demo. Stop after any one and keep what you have.

  • Fixed price per MVP
  • Tests and documentation included
  • Governed by a written agreement
Who it is for

For when a template
will not do.

  • Brands that sell direct

    An online store that does more than a template: product configurators, custom quotes, wholesale ordering.

  • Manufacturers and distributors

    Dealer portals, order tracking, and production status your customers can check without calling you.

  • Service businesses

    Booking, client portals, and the internal tool that replaces the spreadsheet everyone is afraid to edit.

  • Founders with a platform idea

    A first version that real users can sign up for and pay for, built so the next version does not start from zero.

What we build

Web software, from the
screen to the server.

  • Storefronts

    Catalogue, checkout, payments, and the custom parts a template cannot do.

  • Customer portals

    Accounts, orders, documents and status, in one place your customers log in to.

  • Internal tools

    Dashboards, approval flows and admin screens that replace manual work.

  • Subscription platforms

    Sign-up, plans, recurring billing, and an admin side to run it.

  • Integrations

    Payment gateways, shipping, accounting and third-party APIs, connected and monitored.

How an engagement works

Always know what
you pay for next.

The answer to "it ran over budget and never finished" is to never buy the whole thing at once.

  1. Discovery

    We talk about your business, then write back what you asked for in plain language. You correct it before anything is priced.

  2. MVP ladder quote

    The product is split into MVPs. Each has a fixed price, a one-line statement of what your customer sees when it is done, and the demo that will prove it.

  3. Build

    One MVP at a time, against the statement you approved. Tests and documentation are written with the code, not after it.

  4. Acceptance demo

    We show the MVP doing what its statement says. Acceptance is against that statement, under the terms of the written agreement.

  5. Hypercare

    A support window after each MVP goes live, inside its price, for fixing what real use turns up. The length is written into the quote.

What a ladder looks like

Illustrative example for a made-to-order online store. Not a client project.

  1. MVP 1 Fixed price

    Open for business

    Your customer sees
    Customers browse the catalogue, order and pay online.
    Acceptance demo
    A test order placed, paid and received in the admin.

    You can stop here and keep a working product.

  2. MVP 2 Fixed price

    Quote it yourself

    Your customer sees
    Customers configure a product and see its price instantly.
    Acceptance demo
    Three configurations priced live, matching your price sheet.

    You can stop here and keep a working product.

  3. MVP 3 Fixed price

    Track my order

    Your customer sees
    Customers see production and delivery status without calling.
    Acceptance demo
    An order moved through each stage, with the customer view updating.

    You can stop here and keep a working product.

  4. MVP 4 Fixed price

    Come back and reorder

    Your customer sees
    Returning customers reorder in two clicks and get useful emails.
    Acceptance demo
    A repeat order from order history; the follow-up email received.

    You can stop here and keep a working product.

Included in every MVP

Not extras.
Inside the price.

Software that works in the demo and breaks in use is usually software without tests, documentation or anyone watching it after launch.

  • Working software, live

    Deployed where it will run, not a prototype on a laptop.

  • Automated tests

    Written with the code and run before every release, so a fix today does not break last month's work.

  • Documentation

    How to use it, how it is built, and how to run it.

  • Runbook

    What to do when something fails: how to spot it and how to recover.

  • Acceptance demo

    The MVP shown doing what its statement says, before you accept it.

  • Hypercare window

    Support after go-live for what real use turns up.

Evidence you can check

We run our own
production software.

Stralines Trade

Our own subscription software platform, live and open to the public today. It has sign-up and accounts, paid subscription plans, and integrations with nine third-party exchanges, each carrying order placement, position sync and trade history. It is built and run the way we would build and run yours.

See Stralines Trade
  • 40,000+ automated tests per release
  • 13 stages in the release pipeline
  • 9 exchanges integrated

Tests with every change

A change ships with the tests that prove it. A release that fails a test does not go out.

Docs and runbooks are delivery

Documentation is updated in the same change as the code. Every failure we meet gets a written recovery procedure.

Client work stays private

We do not name, describe or show a client's project without that client's written consent.

Who builds it

Stralines Labs is founder-led and builds with AI-assisted engineering, using the same process that builds and runs Stralines Trade: tests with every change, gated releases and written runbooks. That is how tests and documentation fit inside a fixed price.

Questions buyers ask

Who owns the code and intellectual property?

Ownership of the code and intellectual property is set out in the written agreement for your engagement, before any work starts.

Do we have to commit to the whole ladder?

No. You commit to one MVP at a time. Each one ends in a working product, so you can stop after any MVP and keep what you have.

Can you guarantee a launch date?

No one can honestly guarantee a date for software that has not been built. What is fixed is the price of each MVP and the statement it is accepted against, so a delay never becomes a bigger bill for the same work.

How are changes priced?

Anything inside an MVP's approved statement is part of that MVP's price. A change that alters the statement is quoted as its own item, and you decide on it before work on it starts.

Where will it be hosted?

Hosting is agreed during discovery, based on what the product needs, and written into the quote along with who holds the hosting account.

What happens after launch?

Every MVP includes a hypercare window after it goes live. You also receive the documentation and runbook, so the product is not locked inside one person's head. Ongoing support after hypercare can be quoted as its own engagement.

Which timezone do you work in, and how do we communicate?

We are based in India and work in IST (UTC+5:30). Day-to-day communication is written, by email or WhatsApp, with calls for discovery and acceptance demos.

Start a conversation

Tell us what
you want built.

A few sentences is enough. We reply with questions or a time to talk, not a sales sequence.

What it should do, who uses it, and anything you use today that it replaces.

We reply within one business day (IST).