> init --custom-software-development

Software
built around
you.

Not the other way around.

Let's build something See what we do
// at a glance

Pythn Development builds custom software for small businesses and startups.

Pythn designs and builds custom software, web and mobile apps, backend APIs, business automation, data dashboards, and AI tools — for founders and operators across the United States who need software that fits, not off-the-shelf tools stretched to work. Every engagement begins with a free discovery call and a fixed scope and price before any code is written, and clients work one-on-one with the developers building their product — no sales teams, no account managers, no tiered support. As a DBA of Finlock Accounting, any project that needs an accounting layer — ledgers, invoicing, payroll, reporting, or tax — plugs directly into the Finlock API on day one.

Typical cost
Under $1K for simple sites · $5K–$15K for tools · $15K–$50K for platforms
Typical timeline
2–4 weeks for tools · 2–6 months for platforms
Engagement model
Free discovery · fixed scope & price · 24-hour response
Reach
U.S. remote-first · on-site visits available
// what we build

Services

We design and build software solutions that fit your exact needs — no bloat, no compromise.

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Custom Software
Complete integrated solutions tailored to your workflow. From internal tools to full business platforms, we build exactly what you need.
Learn more →
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Web & Mobile Apps
Responsive, fast applications that work beautifully on every device. Modern interfaces your team and customers will love.
Learn more →
[ ]
API & Backend Systems
Scalable backends, database architecture, and API integrations. The engine that powers your business behind the scenes.
Learn more →
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Automation & Integration
Connect your existing tools, automate repetitive tasks, and streamline operations so you can focus on what matters.
Learn more →
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Data & Analytics
Turn your data into decisions. Dashboards, reports, and real-time insights that keep you ahead of the curve.
Learn more →
>_
AI & Intelligent Tools
Leverage AI to enhance your workflows. Smart assistants, automated analysis, and machine learning tailored to your domain.
Learn more →
See full services overview →
// featured integration

Accounting? Handled.

Pythn Development is a DBA of Finlock Accounting — our sister company.

Every project that needs an accounting layer — ledgers, invoicing, payroll, reporting, tax — plugs directly into the Finlock integration API. You get production-grade accounting from day one without us rebuilding the wheel. One partner. One source of truth for your financial data.

Finlock API Ledgers Invoicing Payroll Reporting Tax
Visit finlock.us →
// who we are

Built for businesses
that build things.

We're a small, focused development shop that partners with businesses to build the software they actually need. No sales teams, no account managers — you work directly with the developers building your product.

We specialize in small businesses and startups that need real solutions, not off-the-shelf software stretched to fit. Every project starts with understanding your workflow, and ends with software that feels like it was always there.

Pythn Development is a DBA of Finlock Accounting, our sister company. Any project that needs an accounting layer — ledgers, invoicing, payroll, reporting, tax — plugs directly into the Finlock integration API.

Remote-first and available everywhere. Read more about us →

100%
Custom Built
1:1
Developer Access
24h
Response Time
Remote
First
// how it works

Simple process, real results.

From first conversation to live software — here's how we work together.

01
Discovery
We learn your business, your workflows, and what's not working. No jargon, just conversation about what you need.
02
On-Site Visit
We come to you. We walk your operation, watch the day-to-day in action, and map the real bottlenecks slowing your team down — the ones that only surface when you see the work happen.
03
Design
We map out the solution and show you exactly what we'll build before writing a line of code.
04
Build
You see progress every week. We iterate with your feedback so nothing is a surprise at launch.
05
Launch & Support
We deploy, train your team, and stick around to make sure everything runs smoothly.
Full process breakdown →
// common questions

Frequently asked questions.

Straight answers to the questions we hear most often. Still curious? The contact form below is the fastest way to get a real answer.

How long does a custom software project take?

Small internal tools typically deliver in 2–4 weeks. Full business platforms and multi-integration systems usually run 2–6 months. You see progress every week so nothing is ever a surprise at launch.

What does a custom software project cost?

Simple informational websites start under $1,000 when there are no integrations. Focused internal tools and small platforms typically fall between $5,000 and $15,000. Full business platforms with authentication, admin tooling, and integrations usually land between $15,000 and $50,000. The discovery call is free, and you get a fixed scope and price before any work begins — no surprise invoices. Try our five-question cost calculator for an interactive estimate.

Do you work with small businesses and startups?

Yes — those are our favorite clients. No project is too small to start. We specialize in small operators and early-stage startups who need real software, not off-the-shelf tools stretched to fit.

What technologies do you use?

Python (FastAPI), JavaScript & TypeScript (React, Vue, vanilla when appropriate), SQLite and PostgreSQL, and cloud-native deployment patterns. We pick the stack based on what your problem actually needs — not what's trending.

Can you integrate with my existing systems?

Yes. Custom API integrations, workflow automation, and connecting disparate tools is a core specialty. If your system has an API — or even just a database we can read — we can almost always plug it in.

Do you offer ongoing support after launch?

Yes. Every engagement ends with deployment, team training, and ongoing support options. You get direct access to the developers who built your software — no tiered support desks, no ticket queues.

How does the Finlock accounting integration work?

Pythn is a DBA of Finlock Accounting. Any project that needs an accounting layer — ledgers, invoicing, payroll, reporting, or tax — plugs directly into the Finlock API. You get production-grade accounting from day one without us rebuilding the wheel.

Do you work remotely or on-site?

Remote-first, working with clients across the United States. For projects that benefit from it, we also travel for an on-site visit — walking your actual workflow often reveals bottlenecks you wouldn't spot remotely.

// let's talk

Start a conversation.

Tell us about your project. We'll get back to you within 24 hours.

Get in touch

✉
☎
◎
Based in
Geneva, NY — Finger Lakes region
Serving Rochester & Western NY · remote across the US
⌂
Mailing address
2269 Lyell Ave, Suite 103 #1159
Rochester, NY 14606

Small businesses & startups welcome.
No project is too small to start.

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