Custom software development, quoted as a fixed price.
Web apps, portals, internal tools and platforms, built by senior engineers who hand the repetitive work to AI agents. A fixed quote before work starts, a demo every week, and code you own.
What you get from a custom software development company like Gigabit.
Gigabit builds custom software for companies that have outgrown spreadsheets, off-the-shelf tools or a first prototype: customer portals, internal tools, two-sided marketplaces, payment platforms and the APIs behind them. A senior engineer leads every build. AI agents take the repetitive work (tests, migrations, boilerplate, documentation), so a small team ships what used to need a large one.
Every build starts with a short scoping phase that ends in a written, fixed price. The published projects show the range: a logistics SaaS MVP for $48,000 in 11 weeks, a two-sided marketplace for $72,000 in 14 weeks, a B2B payments platform for $118,000 in four months. You own the code, the cloud accounts and the data from the first day.
The custom software we build.
Most projects take one of these shapes. Each ships with tests, CI/CD, monitoring and a hand-over your own team can run.
Web applications
Customer-facing web apps and SaaS products in React and Next.js with Node or Python back ends, multi-tenant from the first sprint when the product needs it.
Portals and internal tools
Customer, partner and staff portals that replace email chains and spreadsheets, wired to the CRM, ERP or billing system that holds the data.
Marketplaces and booking platforms
Two-sided platforms with search, messaging, reviews, payment holds and Stripe Connect payouts to vendors.
Payment and fintech systems
Payment flows, ledgers and reconciliation, with the audit trails and access controls a compliance review asks for.
APIs and integrations
The API layer and the connections to the systems you already run, documented so the next team can extend them.
AI features inside the product
Search, summaries, document extraction and agents built into the app, with evaluations that tell you when quality drops.
Four steps, one fixed price.
Scope
One to two weeks to agree the users, the core workflows, the data model and what is out. It ends in a fixed price and a sprint plan.
Build
Two-week sprints with a demo on staging every Friday. You test the real software, and your feedback goes into the next sprint.
Launch
Load tests, a security pass and a rehearsed deploy with a rollback plan, with monitoring live before the first customer logs in.
Run or hand over
Keep the team as an embedded pod, or take it in-house with runbooks and a walkthrough of the code.
Published prices, mapped to the job.
Every price here is the same one on the pricing page. Work with no published price gets a fixed price in writing before it starts.
Figures in the notes are what past clients paid, from the published case studies; they show the range, not a rate card. Work with no natural end, such as ongoing development, is priced per engineer per month with no lock-in.
When to hire us for this, and when not to.
- The software is the product, or runs a core part of the business.
- Off-the-shelf tools need so many workarounds that the workarounds are the job.
- You want to own the code and the data instead of renting a platform per seat.
- Someone on your side can decide what ships each week.
- A SaaS tool already does 90% of the job. Configure it instead; the platform pages cover most of them.
- You need a marketing website. That is a Website Build on Webflow, WordPress or Framer.
- Nobody on your side has an hour a week to review demos.
Four custom builds, with what they cost.
A SaaS MVP, a marketplace, a payments platform and a telehealth platform. Each links to the full case study.
A $48K, 11-week logistics SaaS MVP that reached 14 paying customers and unlocked a $2.1M Series A.
A $72K, 14-week two-sided marketplace build processed $2.4M GMV in year one and powered a $3.8M seed round.
A construction payments platform built in 4 months for $118K processed $41.2M in year one with a 0.02% error rate.
HIPAA-compliant telehealth platform with 3 EHR integrations enrolled 1,200 patients in 90 days and backed a $4.5M Series A.
These are past engagements at the prices those clients paid. For build price, monthly cost and payback side by side, see what ten client projects cost.
Custom software development, answered
How much does custom software development cost?
It depends on the number of user types, workflows and integrations. Our published builds give the range: $48,000 for a logistics SaaS MVP in 11 weeks, $72,000 for a two-sided marketplace in 14 weeks, $118,000 for a B2B payments platform in four months, and $124,000 for a telehealth platform with a mobile app in five months. You get a fixed price in writing after scoping, before any build work starts.
How long does it take to build custom software?
Most first versions take 8 to 20 weeks. The fastest published build reached paying customers in 11 weeks; a platform with three EHR integrations and a mobile app took five months. Scope is the main lever, which is why the first phase cuts the feature list to what the first users need.
Who owns the code?
You do. Repositories, cloud accounts and credentials sit in your name from the first day, and the hand-over includes runbooks and a walkthrough of the codebase.
Where are your engineers?
Gigabit is registered in Wyoming and delivers from its engineering hub in Dhaka, with a daily overlap window for US and European teams and a senior engineer leading every build.
Do you use AI to write the code?
Yes, for the repetitive parts: tests, migrations, boilerplate and documentation. Senior engineers design the system, review every change and own what ships. That is how a small team can commit to a fixed price.
Often scoped alongside.
SaaS development
Multi-tenant products, billing and AI features, from MVP to scale.
SaaS developmentMVP development
The smallest product your first customers will pay for.
MVP developmentPrototype Production Review
A $2,500 senior review of an app built with Lovable, Bolt, Replit, Cursor or Claude Code.
Prototype Production ReviewFrom the field notes
Have a system to build?
Tell us what it has to do and who will use it. A senior engineer replies with questions, then a scoping plan and a fixed price.