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Case study · Mobile app

HMA Run the business. Not the admin.

A business management app for trades and small business owners — clients, jobs, quotes, invoices, expenses, schedules and documents together in one straightforward Android app, launched with its own landing page.

Client
Sinderman Tech
Product
HMA — Quotes & Invoices
Platform
Android · iOS coming soon
Pricing
14-day free trial, then HMA Pro
Our role
Design & app development
Year
2026
sinderman.com.au/hma · live homepage
HMA homepage on desktop
HMA homepage on mobile

Overview

Less admin, more time on the job.

HMA is built for trades and small business owners who want the everyday admin — clients, jobs, quotes and invoices — in one place they can check at a glance.

The client

Sinderman Tech is an Australian studio that builds websites, business systems and automations for small businesses. HMA is its own product: a business management app, released on Google Play in August 2026 with a free 14-day trial.

What the app does

  • Keeps clients, jobs, quotes, invoices and expenses in one app
  • Shows what needs attention today on the dashboard
  • Creates, previews and sends branded quotes and invoices
  • Tracks income, expenses and profit over time

Our role & approach

Design & app development — the app and its landing page, from structure and visual design to build and launch.

Live since 2026.

Mobile Application Development at Cerrow

Key features

What’s in the app.

Today’s focus

The dashboard lists the day’s scheduled jobs, reminders, quotes awaiting approval and overdue invoices, with a 7-day weather forecast for planning.

Jobs & calendar

Jobs move from quoted to scheduled to completed, and a month calendar shows every booking with the day’s revenue.

SCHEDULEDQUOTEDCOMPLETED

Quotes & invoices

Create quotes and invoices, send them, and see each one’s status at a glance — including Scope of Work on quotes.

DRAFTSENTACCEPTEDPAIDOVERDUE

Document preview

Branded quote and invoice documents can be previewed and zoomed before they go to the client.

Profit tracker

Income, expenses and profit for any period, with a performance chart and a breakdown of where the money goes.

Expenses & receipts

Business expenses are tracked in the app, with receipts and files uploaded alongside them.

Inside the app

Every screen, one place.

The app’s store screens, from the Google Play listing. Android · iOS coming soon.

  • HMA app — Dashboard screen

    DashboardToday’s focus at a glance — scheduled jobs, reminders, quotes awaiting approval, overdue invoices and the weather.

  • HMA app — Calendar screen

    CalendarA month view of every job, with the day’s schedule and revenue underneath.

  • HMA app — Jobs screen

    JobsActive, quoted, scheduled and completed jobs, each with client, date and amount.

  • HMA app — Quotes screen

    QuotesCreate and send quotes, then follow them from draft to sent, accepted or declined.

  • HMA app — Invoices screen

    InvoicesInvoices filtered by draft, sent, paid and overdue, so nothing owed slips through.

  • HMA app — Document preview screen

    Document previewBranded quote and invoice documents, previewed and zoomed before they’re sent.

  • HMA app — Profit tracker screen

    Profit trackerIncome, expenses and profit by week, fortnight, month or three months, with charts.

Inside the site

A closer look.

Sections from the live homepage, captured on desktop.

HMA homepage, full length
The full homepageScroll inside the frame to move down the page.
HMA — What it covers
What it coversThe everyday stuff, together — clients, jobs, quotes, invoices, expenses, calendar and documents.
HMA — Inside HMA
Inside HMAA swipe-through tour of the app’s seven main screens.

Responsive

Same story, every screen.

The landing page keeps its dark, hot-pink look from a wide desktop down to a phone — where the app itself is meant to be used.

HMA homepage on desktop
Desktop1440 px
HMA homepage on mobile
Mobile390 px

Look & feel

Night black, hot pink.

Colours sampled from the live site.

Hot pink#FF1681
Night#141419
Graphite#464349
Mist#F8F8FA
Run the business.
Not the admin.

Heavy, tightly set sans-serif headlines with a hot-pink second line, paired with condensed capitals in the app’s store screens.

Results

A whole business, in one app.

Clients, jobs, quotes, invoices and profit sit together, so tradespeople run the day from their phone.

  • 6core tools — jobs, quotes, invoices, expenses and more
  • 14day free trial before HMA Pro
  • 1dashboard for what needs attention today
  • Live on Google PlayReleased in August 2026, with iOS on the way.
  • Paperwork that looks proBranded quotes and invoices are previewed before they’re sent.
  • Profit at a glanceIncome, expenses and profit for any period, with a breakdown.

Client feedback

In the client’s own words.

Demo content · real feedback coming soon

HMA

sinderman.com.au/hma · 2026

Cerrow took a long list of features and shaped it into an app that feels simple. Their design decisions were always explained, deadlines were met, and the launch on Google Play went without a hitch.

Daniel BrooksProduct ManagerDemo

Next project

Kam Wah Restaurants

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Obaidur, Founder and CEO of Cerrow
Obaidur
Founder & CEO, Cerrow

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