Built for one process
General software approximates your workflow. A tool built for it does the exact steps, in the order your business does them.
service.custom_software
Custom software for the work your business still does by hand.
Custom software from Sato Solutions is an internal tool, an integration, or an automation built around your process rather than a product configured to approximate it: the material list, the route, the estimate, the invoice, or for a store the stock, the pricing, and the fees. I scope it after a free consultation, fix the price before the build starts, build it on your data and your accounts, and hand over the code.
02section.work
Recent work
Inventory Health Dashboard
Every variant scored from Fresh to Dead Stock every day, with the markdown price for what is aging out. Built for West Coast Deals, and running there since.
Custom P&L Software
Net profit per marketplace from the payout exports and the landed costs. With the receipt reader, the store's month-end accounting went from 210 hours a month to 3.
Reorder Planner
The weekly buy plan from sales, with the margin gate and the review queue, so the buy is decided from the numbers instead of memory.
03section.who
Who this is for
- Owners whose week has a day of work in it that a system could do: the export, the morning check, the spreadsheet that holds it all together.
- Stores that have outgrown the spreadsheet for stock, pricing, and marketplace fees, or that pay for software whose rules no longer match their own.
- Businesses that want to own the tool outright instead of renting a subscription that stops the day they stop paying.
04section.deliverables
What's included
- 01
A written scope from the free consultation: what the tool has to do, what it reads, and what comes out the other end.
- 02
A fixed price agreed before the build starts. No hourly creep.
- 03
Built on your data and running on your accounts, so nothing depends on a vendor's infrastructure.
- 04
Connected to what you already run: Shopify, the marketplaces, QuickBooks, Google Sheets, or anything in the list below.
- 05
Handover with the code in your name and a walkthrough for whoever runs it.
- 06
Every build backed for a year. If the tool is not doing what it was built to do, I put it right at no charge.
Custom builds are scoped per build, with the price fixed before the build starts. The six finished tools have a monthly license price. See all pricing
05section.why
Why this works
Fixed price, written scope
The price is agreed before the build starts, from a written scope, and the scope is what the finished tool is measured against.
Runs on your accounts
Your data stays in your systems. The tool reads and writes through your own accounts, not through a vendor's.
You own the code
The code is in your name at handover. There is no subscription to keep paying and no roadmap to negotiate with.
Measured in production
The tools on this site run every day inside an eight-channel store. The results shown are that store's, measured on its books.
Backed for a year
If the tool is not doing what it was built to do, I put it right at no charge.
06section.stack
Built with
Everything I have built with or wired into. If your business runs on something that is not here, it can almost certainly be connected.
- Languages
- TypeScriptJavaScriptPythonSQLHTMLCSSLiquid
- Frontend
- ReactNext.jsAstroViteTailwindRecharts
- Backend
- Node.jsExpressPostgreSQLSupabasePrismaREST APIsWebhooksCron jobs
- Commerce
- ShopifyShopify themes and LiquidShopify Admin APIGoogle Merchant CenterSquareStripe
- Operations
- Fishbowl WMSVeeqoShipStationQuickBooksXeroNetSuiteGoogle SheetsExcel and CSV pipelines
- Hosting
- NetlifyVercelRailwayDockerGitHub
- Search and analytics
- GA4Search ConsoleGoogle Business ProfileMeta pixelAhrefsSchema.orgSitemaps and redirectsCore Web Vitals
- AI and automation
- OpenAI APIAnthropic Claude APIPlaywrightPuppeteerZapier and MakePython scripts
07section.how
How it works
- 01
Free consultation
One conversation about the process: who does it, what they open, and what comes out the other end. The 12-question intake covers the same ground if you would rather write it down.
- 02
Scope and fixed price
You get the scope in writing: what the tool reads, what it does, what it produces, and the price. Nothing is invoiced until you confirm it.
- 03
Build on your accounts
The tool is built against your real data and connected to the accounts it will run on, and you see it working on your data before it goes live.
- 04
Handover
The code goes into your name, whoever runs the tool is walked through it, and it goes live.
- 05
A year of backing
If it stops doing what it was built to do, I fix it at no charge. A change to what it does is a new scope, quoted the same way.
08section.proof
Measured in production
The figure is from one business, measured from the outside by Ahrefs: same team, same offer, no new ad spend.
- Organic traffic
- 20 → 500+
- Ahrefs organic traffic estimate, March to September 2026, on 50 ranking pages up from 2
09section.faq
Frequently asked questions
What does custom software cost?
It is scoped per build, because no two processes are the same. The consultation says what the tool has to do, and the price is fixed before the build starts. The budget field on the form is there so I can scope it to what you had in mind.
What kinds of things do you build?
Internal tools, integrations, and automations. For a trade, the material list, the route, the estimate, and the invoice that are still done by hand. For a store, inventory scoring, repricing, reorder planning, profit by marketplace, receipt intake, and listing tools. The seven demos on the tools page are real builds.
Can I license one of the tools as it is?
Yes, for the six with a price on the pricing page. Each one is a monthly license with 30 days notice. All but Receipt Intake have a one-time setup fee, which covers connecting your accounts, loading your data, and the first two weeks. If the logic has to change for your process, that is a custom build, quoted after the free consultation.
Who owns the code?
You do, from handover. It runs on your accounts and your data, so it does not disappear when a vendor changes its pricing or gets acquired, and you can take it to any developer.
What happens if it breaks?
Every build is backed for a year. If the tool is not doing what it was built to do, I put it right at no charge. A change to what it does is a new scope.
Should I build or buy?
Buy while your process is generic. Build when you want a rule the vendor does not offer, or when the subscription costs more over three years than owning the tool would. The consultation says which, and I will tell you when off-the-shelf is the right answer.
Start with a free consultation.
The consultation is free. You get the scope of the project and what I recommend before anything starts.
Custom software is scoped after the free consultation, at a fixed price agreed before the build starts, and backed for a year.