Live demo, real working software

Keep your spreadsheet. Get a real interface on top of it.

Custom dashboards for small businesses that have outgrown their spreadsheet but are too small, or too specific, for the big platforms. Nothing gets migrated. Your data stays exactly where it is.

No sign up. Sample data. Click anything.

INVOICE NLS-2026-114 Maya Renner
88%

Collection rate
this month

sheetdesk-demo.pages.dev
Northline HQ
Dashboard
Students
Money
Batches
Documents
Growth
Settings
Dashboard
THIS MONTH ▾
Collected$18,54088%
Pending$2,2108%
Written off$9604%
Net after expenses$11,320
Revenue, last 12 months
AugSepOctNovDecJan FebMarAprMayJunJul
Maya RennerInvoice NLS-2026-114PAID
Devon OkaforInvoice NLS-2026-113PAID
Lena MarshInvoice NLS-2026-112PENDING
Runs on Google SheetsReactCloudflareYour existing data
How it works

Your sheet stays the source of truth.

I am not replacing your system. I am putting a proper front end on the one you already trust. Send the sheet, get an interface, keep everything.

Your spreadsheet

Messy is fine. Most of them are.

ABCD Maya Rpaid??420jan DevonPAIDJan 12 lena(new)pending380 Tomaspaid410?

Your interface

Built around your workflow. Two to three weeks, fixed price.

COLLECTED$18,540
PENDING$2,210
RATE88%

Reads and writes to your sheet. Open it any time, the numbers are all still there. No lock in, and if you ever stop working with me, nothing breaks.

What gets built

Everything on one screen, in your language.

The demo is a studio management system, because that is what the first one was. The same approach fits clinics, tutoring, rentals, trades and agencies.

Live dashboard

Revenue, intake, expenses and net, filterable by period and by segment, updating from your sheet.

Records management

Add, edit and search customer records without touching a cell. Bulk actions, filters, no broken formulas.

88% COLLECTED

Money and collections

Who paid, who is pending, what got written off, and the collection rate. The numbers that decide the month.

RECEIPT
INVOICE NLS-2026-114
$420.00

Documents

Invoices, receipts and consent forms on your letterhead, numbered automatically. Cancel the tool you rent for this.

Customer portal

An optional second login for your customers. Schedules, files, announcements, payment status.

Trends

Month over month history so you can see the shape of the business, not just this week's number.

Where this comes from

Built first for a real business, under real deadline.

The demo is the working system I built for a performing arts studio in Mumbai. Admissions, fee collection, tax handling, document generation, student logins and a full student portal, all sitting on top of the spreadsheets they had already been running on for two years. It goes live with its first batch in August 2026.

The demo is that system with the client's data removed and sample data in its place. Every screen you click is the real thing.
2 appsAdmin HQ plus a separate student portal
18 monthsof operating history handled in the demo data
1 sheetstill the single source of truth underneath
Pricing

Fixed price. No subscription you cannot leave.

THE BUILD
$2,400 one time

Scoped up front, fixed price. You own the result.

  • Custom dashboard on your existing sheet
  • Two to three weeks, one revision round
  • Documents, records, money screens included
  • Nothing migrated, no lock in
$99 per month, optional

Keep it running without thinking about it.

  • Hosting and backups
  • Support and small changes
  • Cancel any time
  • Your sheet was never going anywhere

Not sure what you need? Send me your sheet and I will tell you honestly whether this is worth building.

Send me your spreadsheet.

I will look at it and tell you what a dashboard on top of it would actually do for you. If the answer is not much, I will say so.