C4C Mobile App & Collect
The iAwards-winning consumer and collection platform behind WA's Containers for Change — recognised nationally for sustainability impact.
What we do
Strategy, build, and AI — under one roof.
Pick the engagement model that fits where you are. We can lead the technology strategy, build the product, or partner across both.
01 · Leadership
Virtual CIO & Innovation Leadership
Senior technology direction, embedded in your organisation — without the cost of a full-time CIO.
You get an executive partner who sets the technology vision, builds the roadmap, oversees vendors, and represents tech in the boardroom. Best for organisations with growing complexity but no senior tech leader yet.
Typical engagements:
- Fractional CIO (1–4 days/month)
- Innovation strategy & roadmap design
- Vendor and platform selection
- Board-level technology advisory
Good fit if you…
- Need senior tech direction but can't justify a full-time hire
- Are about to undertake a digital transformation
- Have plateaued with current vendors and need an honest second opinion
- Want to embed innovation as a capability — not a project
Stack & capabilities
- Web: React, Next.js, TypeScript
- Mobile: iOS, Android, React Native
- Backend: Node, PHP, Python
- Cloud: AWS, Azure
- Data: MySQL, PostgreSQL, DynamoDB
02 · Build
Custom Software & AI Integration
Production-ready web, mobile, and AI-powered solutions — designed, built, and shipped by senior engineers.
We build the way mature product teams build: small senior squads, modern stacks, continuous deployment, and observability from day one. No prototypes that can't scale.
What we ship:
- Custom web applications & portals
- Native and cross-platform mobile apps
- AI-powered features and integrations
- Cloud architecture & modernisation
03 · Innovation
Innovation Solution Development
From the first whiteboard to a validated product in market.
Most innovation projects die in the gap between "good idea" and "shipped product." We close that gap with a structured discovery → prototype → MVP → live workflow, validated against real users at every step.
Phases:
- Discovery & problem framing
- Concept design & user testing
- Rapid prototyping
- MVP build & market validation
- Scale & commercialise
Proof in market
We've used this exact process to ship the C4C Collect platform (iAwards winner), WhistleIQ, UMPY, and BikeBookings (acquired 2021).
Sectors we know deeply
- Sport & officiating (WhistleIQ, UMPY)
- Sustainability & circular economy (Containers for Change)
- Community & member-based organisations
- Regulatory compliance & reporting
04 · Sector-focused
B2B & B2C Sector Solutions
Purpose-built platforms for the sectors we know deeply.
When we've shipped multiple products in your space, we don't start from zero. You get the benefit of patterns, components, and integrations we've already validated — at a fraction of the build time.
05 · AI/ML
Machine Learning & Responsible AI
ML models that ship — with governance, monitoring, and reproducibility built in.
Led by Mark Tuttle (Master's in Applied AI, Big Four background), our ML practice focuses on production-grade systems: not notebooks, not demos. We integrate AI where it actually changes outcomes for users.
Capabilities:
- Predictive modelling & forecasting
- NLP & document understanding
- LLM integration & agents
- MLOps: deployment, monitoring, governance
Stack
- Python, TensorFlow, PyTorch
- Docker, Kubernetes
- AWS SageMaker, Azure ML
- LLM: OpenAI, Anthropic, open-source models
When this fits
- Cloud migration / re-platforming
- Legacy system modernisation
- Operating model redesign
- Board-level digital strategy reviews
06 · Advisory
Advisory & Digital Transformation
Pragmatic guidance for boards and execs navigating big technology decisions.
You don't always need a build partner — sometimes you need a senior thinking partner. We bring the same depth, just dialled to the level of strategy, governance, and decision-making.
How we engage
Three ways to work with us.
Sprint engagement
2–6 week focused engagement to solve a specific problem: discovery, audit, prototype, or strategy reset. Fixed scope, fixed price.
Project build
Full-cycle product build: from discovery to launch. Senior squad, weekly demos, production from day one. Typical 3–9 months.
Embedded retainer
Ongoing fractional leadership and capacity. Virtual CIO + senior engineering on tap, scaled up or down as you need.
In market
Products we've shipped.
Stacksy doesn't just consult — we build and operate real platforms used by communities, leagues, government programs, sales teams, and SMBs across Australia.
WhistleIQ
The feedback platform for sports officiating — helping referees, leagues and associations capture, share, and act on performance data in real time.
UMPY
A digital marketplace connecting community sport with qualified officials — solving the chronic shortage of umpires and referees at the grassroots level.
AnonaVoice
Secure, anonymous, two-way communication. Zero PII collected, AES-256 encrypted, Sydney-hosted, Australian Privacy Act compliant.
HQ
Run your whole team from one fast workspace. Tickets, projects, conversations, and daily ops in one opinionated place.
MyRepDay
Field force enablement for Australian medical and pharmaceutical sales reps — visits, call notes, samples, and territory management built around how reps actually work.
QR Stack
Affordable dynamic QR codes that are yours. Track scans, update destinations after print, no subscription gouging.
Incy Links
Branded shortlinks on your own domain, real-time click tracking, QR codes per link, REST API, and bio landing pages. Bring your domain — we handle the rest.
MyFaves
A password-protected personal start page — your bookmarks, tools, and dashboards in one tidy place. Multi-tenant, hosted, shareable with teams.