Custom software
Software built around how your business works.
Web apps, mobile apps, portals, and internal tools, from a first prototype to a full product. Fixed prices, working software every week, and you own all of it.
The problem
Sound familiar?
The software you rent almost fits
Your team works around it every day with spreadsheets, copy and paste, and workarounds nobody wrote down.
You have an idea that needs proving
You need something real to show customers, staff, or investors before you commit a big budget.
Customers expect to do it online
Quotes, orders, scheduling, and status checks still happen by phone and email.
An aging app is holding you back
It still runs the business, but every change is slow, risky, and expensive.
What you get
What we deliver
Fixed fee per project. From $5,000.
- A written scope and one fixed price
- Designs you approve before we build
- Working software to review every week
- Automated tests and a safe way to release changes
- Documentation and handover of every account
- Code, data, and hosting in your name
Pricing
What it costs
Fixed fee. Typical firm prices are where an established Texas custom software firm's published ranges start. Ours are next to them.
| Project | Typical firm | Zyntrix |
|---|---|---|
A small tool that does one job well Quoting calculator, field data capture, an internal request tracker | from $20K4 to 8 weeks | $5K to $15K3 to 6 weeks |
A prototype or MVP to test an idea A clickable or working first version to show customers, investors, or a test group | from $20K4 to 12 weeks | $5K to $20K2 to 6 weeks |
A mobile app for a system you already have A crew or customer app on top of your existing software | from $60K3 to 6 months | $15K to $45K6 to 12 weeks |
A first version of a new app, a startup MVP, or a rewrite A launchable product for a startup, a portal or ordering system, or a replacement for an aging app | from $120K3 to 7 months | $25K to $90K2 to 5 months |
A customer facing web or mobile product Software your customers log into and pay for | from $200K4 to 9 months | $45K to $150K3 to 6 months |
A system with heavy security or compliance needs Healthcare, finance, or government data, with audit trails, access controls, and the paperwork to prove it | from $320K6 to 12+ months | $90K to $300K4 to 9 months, in phases |
A large application delivered in phases Several user types, many integrations, or a product that grows release by release | from $400K6 to 18+ months | $120K to $400K6 to 12 months, in phases |
A custom ERP, or the platform your whole business runs on Quoting, jobs, inventory, billing, and reporting in one system built around how you work | from $600K9 to 21+ months | $150K to $500K6 to 15 months, in phases |
* Typical ranges, not quotes. Integrations, data clean up, the number of user types, and compliance needs can move a project outside them. You get one fixed price in writing before any work starts.
How it works
How it runs
- 1
Understand the work
We learn how the work actually gets done, who touches it, and what it costs today.
- 2
One fixed price
You get a written scope and one number before we start. If we learn something mid project, we adjust scope with you, not the invoice.
- 3
Working software every week
Short cycles you can click through. You make the calls on tradeoffs.
- 4
Hand over or keep running
You own the code, data, and accounts. Take it anywhere, or keep us on a monthly plan.
Questions
Common questions
What kinds of apps do you build?
Web apps, mobile apps on top of existing systems, customer and vendor portals, internal tools, and first versions of new products. If it runs a business process, we can probably build it.
How are your prices lower than larger firms?
AI handles much of the routine coding and testing, so projects take fewer hours. A senior engineer makes and reviews every important decision, and there are no account managers or office overhead in the price.
Do we own the code?
Yes. Once paid, the code, data, designs, and accounts are yours. You can keep working with us or hand it to anyone else.
What if we do not know exactly what we need?
Start with a plan and prototype sprint. In two to three weeks you get a clickable prototype, a written scope, and a fixed price for the build.
More services
Other ways we build
Tell us what you want to build.
In 30 minutes you get a straight answer on scope, a price range, and the smartest first step.