- 4 min read
Build a Fully-Owned Mobile & Web App for Service-Based Businesses – Powered by Flutter

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- 4 min read
All-In-One Platform. Built Once. Monetised Forever. Now with Finance for ABN Holders.
If you’re in the service industry—construction, plumbing, electrical, inspections, roofing, renovations, or even general handyman work—you already know how chaotic running operations can get. From quoting and scheduling to invoicing, photo logging, staff management and client follow-ups—most businesses juggle ten tools and still drop the ball.
At Digital One Agency, we’ve solved this. And now you can own the entire platform, profit from it, and even licence it out.
We’re introducing a complete mobile and desktop solution, built in Flutter, that you can fully own and grow into a national or global SaaS empire.
💡 The Idea: One Platform to Run Any Service Business
Every service-based business struggles with the same things:
- Lost quotes
- Missed jobs
- No-shows
- Paperwork everywhere
- No visibility over staff or contractors
- Inconsistent payments and follow-ups
So we developed the ultimate Flutter-based mobile app and web portal, made for:
- Tradies
- Plumbers
- Electricians
- Roofers
- Inspectors
- Handymen
- Builders
- Maintenance Teams
- And any service business with boots on the ground.
You can run everything from your phone, and access a full-featured Flutter Web portal from any desktop or laptop.
📱 Built with Flutter – Web, iOS, and Android from One Codebase
We chose Flutter because it’s fast, scalable, and cross-platform. That means you get iOS, Android, and Web access all from a single codebase. Updates are cheaper, user experience is unified, and your platform is future-proof.
Whether you’re in the office or onsite, this platform just works.
🔧 What the App Can Do
Mobile App (Flutter – iOS & Android)
- 🔹 Create & Send Quotes
- 🔹 Book Jobs with Calendar Sync
- 🔹 Client Management & Job History
- 🔹 Onsite Check-ins via GPS
- 🔹 Photo Logging & Uploads
- 🔹 Voice Notes & Job Notes
- 🔹 Track Job Progress in Real-Time
- 🔹 Invoicing and Payments (Stripe, PayPal, Square)
- 🔹 Digital Signatures
- 🔹 Offline Mode for remote jobs
- 🔹 Push notifications and alerts
- 🔹 Subcontractor access control
Desktop Web Portal (Flutter Web)
- ✅ Dashboard with Job/Revenue Overview
- ✅ Multi-user Admin & Permissions
- ✅ Inventory Tracking
- ✅ Staff Rostering
- ✅ Client Portal Access
- ✅ Automated Emails and Reminders
- ✅ Safety Forms, SWMS, OHS Management
- ✅ Photo & File Repositories
- ✅ Job Profit & Loss Reporting
- ✅ Custom Workflows and Automations
- ✅ Drag-and-drop Job Scheduler
- ✅ Multi-business or Franchise Mode
🌐 Cloud-Based. Fully Integrated. 100% Scalable.
This is not local software that sits on one PC.
Everything is:
- ✅ Cloud hosted
- ✅ Backed up daily
- ✅ Secure and encrypted
- ✅ API ready
- ✅ Fully extensible
You can connect to:
- Stripe, Square, PayPal
- Xero, MYOB, QuickBooks
- Google Maps, Calendar, Cloudinary
- Twilio, SendGrid
- WhatsApp or SMS
- Zapier or Custom APIs
💼 Resell, Licence, and Monetise It
You’re not just building an app—you’re building a software business.
Once developed, you own it. You can:
- ✅ Run it for your own operations
- ✅ Charge other businesses to use it
- ✅ Offer subscriptions ($199–$999/month)
- ✅ Sell white-label versions
- ✅ Partner with trade consultants to resell
- ✅ Generate affiliate or marketplace income
- ✅ Build out AI-powered quoting and billing tools
This is a licensable SaaS business in a box, built from the ground up for recurring revenue.
💸 Financial Breakdown
Development Investment
$550,000 AUD (fixed price with Digital One Agency)
Includes:
- Full system development
- Mobile + Web app
- UI/UX design
- Integrations
- Hosting setup
- Documentation
- Full source code + IP ownership
Monthly Revenue Potential (SaaS Subscription Model)
| Plan Tier | Monthly Fee | Users | Total Revenue |
|---|---|---|---|
| Solo Plan | $199 | 1,000 | $199,000 |
| Small Teams | $499 | 500 | $249,500 |
| Pro/Agencies | $999 | 300 | $299,700 |
| Enterprise | Custom | 50 | $300,000+ |
➡️ 12-month forecast:
- Break-even by Month 5–6
- Projected Year 1 ROI: 300–350%
- Year 2 Target: $2 million/month recurring revenue
This app pays for itself in under a year and becomes a cashflow machine.
🧠 Why It’s a Game-Changer
✅ Flutter = Cheaper to build + update
✅ Own the IP = No platform fees
✅ Subscription = Monthly compounding revenue
✅ Tradies = Repeat users, long LTV
✅ Full cloud = Remote teams, contractors, overseas staff can use it
✅ Finance = Easy to get started with low monthly repayments
🏗️ Who Is This For?
This app suits:
- Startup SaaS investors
- Tradie business owners looking to expand
- Business coaches or consultants
- Franchises and trade licensing firms
- App entrepreneurs looking to own their own platform
- Agencies seeking white-label tools to resell
💰 Finance Options Now Available
We now offer flexible finance to all ABN holders.
You can finance this app build from as little as:
- $3,500/month with approved finance
- Spread payments over 12–60 months
- Finance the entire $550k or part of it
✅ No big upfront cost
✅ Get a business-generating system immediately
✅ Start onboarding clients while paying it off
🧱 Add-On Options & Modules
Want more? Here’s what you can add later:
- 🛠️ Job board / lead marketplace
- 🧑🏫 Affiliate and referral rewards system
- 🧑💻 AI quoting and job prediction
- 💡 Staff time tracking and reporting tools
- 🛠️ Franchisee self-managed portals
- 💳 Split payments for contractors and head office
Everything is modular. Build it now, or bolt it on later.
💼 Summary Snapshot
| Feature | Details |
|---|---|
| Platform | Flutter (Mobile + Web) |
| Deployment | Cloud-hosted, global |
| Ownership | 100% IP & source code |
| Recurring Revenue | Yes – SaaS subscriptions |
| Finance Options | Yes – ABN required |
| Build Time | 4–6 months from go |
| Monthly Revenue | $200k–$2M/month projected |
| ROI | 300%+ in Year 1 |
🚀 Ready to Build? Let’s Make It Happen
📞 Call us 24/7 globally: +61290579079
📧 Email: contact@digitaloneagency.com.au
🌏 Website: https://digitaloneagency.com.au
We build your vision. You keep 100% of the profit.
Own the tech. Licence the platform. Change your future.
Need AI SMS Automation in Australia or the UK?
Digital One Agency is a senior, founder-led engineering team based in Australia (Gold Coast HQ) with active UK clients in London, Manchester and Edinburgh. We build AI SMS systems that hold real conversations, qualify leads, and integrate into your CRM.
- Free 30-minute discovery call with a senior engineer
- Fixed-scope quote with milestone billing — no hourly rates
- AU & UK references on request
- Bespoke code you own — not a SaaS reseller, not a ChatGPT wrapper
Book your free discovery call → Or send us your project details
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