Use Case: Replacing Spreadsheets
From Spreadsheet To App, Built On Enterprise-Grade Infrastructure.
Same logic you already trust. A platform built around it.
Convert your Excel workflow into a web app without losing the logic that makes it work. Every calculation, form, and report becomes part of a branded platform.
Live platforms built with GraniteStack
The Real Starting Point
Signs You've Outgrown The Spreadsheet
None of these mean something went wrong. They mean it’s time for the next version.
One tab breaks and nobody notices until a client does
A formula gets edited, a row gets deleted, and the mistake doesn't surface until it's already in front of someone who matters.
Only one person actually understands it
The logic lives in someone's head as much as it lives in the file. If they're out, the process stops with them.
Every new client means copying the file again
Onboarding is duplicate, rename, adjust, and hope nothing's out of sync with the last version you sent.
You're not sure which version is the real one
A client's inbox, your drive, a shared folder: the same process, three different states of true.
The Platform
The Next Version Of What You Already Built
The same process, built as something your clients can log into directly.
Branded web & mobile portals
Clients get their own login, on truly native iOS and Android apps, not a web page in a shell, or a copy of your file emailed on request.
Workflows built from your logic
The calculations and steps you already rely on, configured rather than coded from scratch.
Live reports & dashboards
Updated in real time, not exported and emailed as an attachment.
Role-based access
Who sees what is decided once, not managed file by file.
Connectors
Pull data from the tools you already use, set up in three steps, with WebSocket-based real-time sync where you need it.
Billing, built in
Charge for access without bolting on a separate payments system.
The Part People Worry About
The Logic Doesn't Get Thrown Out
The calculations, the conditional steps, the way you’ve structured this over years: that’s the actual product. GraniteStack’s discovery process maps it before anything is rebuilt, so what goes live still works the way you actually think about the problem, not a generic template it’s been forced into.
HOW IT WORKS
From Spreadsheet To App
No dev team on your end. No open-ended timelines. No inherited debt from the way it was built.
Built-In Intelligence
Configure It With AI. Or Automate What You're Still Doing By Hand.
Two roles, one toolkit. No AI engineer required for either.
Build with it
Describe the workflow you're currently running by hand. Agentic AI configures it as a live process, reviewed by you before anything goes live.
Build it in
Embed the same intelligence into the platform itself: automated calculations, generated reports, natural language interfaces for your clients.
Operating across Australia, the US, India, and Singapore. AWS Partner. AWS Qualified Software Provider. ISO 27001.
Questions
Common Questions
This basically works for free right now. Why would I pay for something that already does the job?
It works until it doesn't, and by then you're not choosing between free and paid. You're choosing between downtime and a fix, mid-crisis, with a client watching. GraniteStack costs a fraction of a custom build and replaces the risk of one file, one person, and one mistake being all that stands between you and a real problem.
What happens to the reports my clients already rely on?
They get rebuilt as live dashboards and reports inside the platform, so your clients see the same information, updated automatically instead of emailed as an attachment.
Do I need to migrate everything at once?
No. Most operators start with the core workflow and expand from there. Discovery scopes what needs to move first and what can follow later.
Can GraniteStack handle a process that's genuinely messy or non-standard?
Yes. Most spreadsheet-run businesses have exactly that: years of exceptions and edge cases layered into the logic. Discovery is built to map that complexity, not smooth over it.
What happens if I want to leave GraniteStack down the track?
Every platform GraniteStack builds is fully standalone, with its own infrastructure and codebase. You control the workflows, data, and configuration from day one, and full legal ownership transfers to you, via a buyout, if you ever choose to exit.
See Your Spreadsheet As A Platform
Show us what you’re working with. We’ll show you what it looks like built properly.