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App development in Sydney

App development for Sydney finance and fintech teams

Sydney's software demand is shaped by banking, payments and insurance, where security review comes before launch. A written scope and a fixed price per milestone.

Sydney is Australia's centre for banking, payments and insurance, and software built for that world is judged on its security story before anyone looks at the interface.

Built for a security review

A financial product is reviewed by risk and security teams long before users see it. The build anticipates that: authentication and session handling done conservatively, an audit trail for sensitive actions, least-privilege access between services and secrets kept out of the app binary. Regulated firms carry their own obligations, for example APRA's information security standard CPS 234 for entities it supervises, and those stay with you. What the build supplies is documentation that makes your assessment faster. If a customer has already sent you a security questionnaire, see the vendor security review.

Money, identity and the Privacy Act

Financial apps hold identity documents, account details and transaction history. That is personal information under the Privacy Act 1988, so collection, storage, retention and disclosure are planned with GDPR principles in mind from the first table. Where data is hosted, and which sub-processors touch it, is decided and written down at the start so cross-border questions have an answer on paper.

The deal

  • Fixed price and scope in writing before the first line of code
  • Market-ready app for iPhone and Android from one codebase, with the audit and access design your review will ask about
  • Invoiced in US dollars by DigitalFreedom Global LLC, Wyoming
  • Full handover of code, cloud accounts and documentation

The wider picture: app developer for Australia. Also in Australia: Melbourne. To start a conversation: get in touch.

Price, contract and data

  • Every step has a fixed price, set in writing before work starts; extra scope is added only through a change order you approve in writing.
  • The code sits in your repository from day one; with each paid milestone, the rights to everything delivered up to that point pass to you. Third-party components and pre-existing tools keep their own licences.
  • For rescues and new builds, 90 days of free bug-fixing after launch, on top of the 12-month warranty under the Terms. Ongoing operation starts at $1,400 a month.
  • You contract with DigitalFreedom Global LLC, Wyoming, USA. All prices are net; the tax treatment is clarified before contract and stated in the offer.
  • Our infrastructure is in the United Kingdom and Europe. Where I process personal data on your behalf, we sign a data processing agreement. The provider overview on digitalfreedom.co.za lists the subprocessors, their locations and the contractual safeguards.

Common questions

How is the Privacy Act taken into account for a fintech app?

The data model is planned with GDPR principles in mind, many of which match the Australian Privacy Principles. Your own status under the Act, any financial-services licensing and your regulator-facing obligations stay with you; the build is documented so you can evidence how personal information and transactions are handled.

Can the app meet our internal security review?

The build is documented for that purpose: architecture overview, data flows, authentication design, third-party components and hosting. What your security team requires is agreed before the build, so surprises come early and cheap.

What does it cost?

A First Version (MVP) from $27,800 in two to four weeks, a market-ready app from $83,300. A fintech prototype that has to carry real customers is rescued from $27,800. Fixed price agreed in writing, not a day rate.

Talk to the architect who'll be accountable for your app

Free, no obligation, NDA beforehand on request: in 30 minutes we look at what happened, who holds which account and what it takes to get your app running smoothly with you covered. You leave with a clear next step.

Free 30-minute call, no obligation

You talk to Marcel directly, the architect who is accountable for the work. No sales rep, no pitch.

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Prefer to write first? Describe your situation, with a link to your app, repository or questionnaire. You get an answer within one business day.