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App Development

Your AI-powered software team, on demand.

AI agents and experienced tech leads building real, working software fast. Made for results, not demos.

Web & mobile appsBuilt around AIRuns in your cloud
Differentiator · 10×
Our key differentiator

Fast, without cutting corners.

Designed properly first

We plan the system before writing code, not the other way round.

Ready for the real world

Real, working software with security and testing, not a prototype.

Humans stay in charge

AI does the work; experienced people check it at every step.

Fast and flexible

Up to 10× quicker, and easy to change course as you learn.

10×
Faster than the usual way
100%
Owned by you
0
Corners cut on safety
2mo
Defect warranty included
The team · human + AI
The delivery model

Humans + AI, working together.

Experienced people plus purpose-built AI agents. The AI does the heavy lifting; people stay accountable for the result.

Human · Accountable

Project / Tech Lead

An experienced human leads every project, owns the big decisions, turns your goals into a clear plan, and keeps it all on track.

AI

Requirement Analyst

Requirements · user stories

AI

Solution Architect

System design · tech choices

AI

Full-Stack Engineer

Front end · back end

AI

Code Reviewer

Quality · standards

AI

QA Engineer

Testing · edge cases

AI

DevSecOps Engineer

Security · deployment

AI

QA Automation

Automated tests · scale

AI · Flexible

+ Purpose-built

Added per project · as needed

Process · t → 1
How a build runs

Five steps, zero surprises.

01

Scope & design

Goals turned into a clear plan and a system design you approve before code starts.

02

Sprint build

AI agents build in fast sprints while your tech lead directs and reviews the work.

03

Review & test

Human review plus automated testing on every change. Nothing ships unchecked.

04

Harden & deploy

Security checks, performance tuning, and deployment to your cloud, under your control.

05

Warranty & handover

Full ownership handed over, with a two month defect warranty included.

Engagement options

Three ways to engage.

Every engagement is scoped to your project. Tell us what you are building and we will shape the right team around it.

Rate card: $20K USD per month for each Pod*

*Each Pod pairs a human Tech Lead with a full suite of AI agents that carry out the implementation.

Sprint
Fixed scope
One build · fixed price

For when you know exactly what you need. We agree the scope upfront, then deliver that scope at a fixed price on a fixed timeline.

  • Scope locked before work starts
  • Fixed price and fixed timeline
  • One clearly defined deliverable
  • New ideas become the next sprint
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Embedded team
Ongoing
Monthly engagement

A standing pod working alongside your team, shipping continuously as your roadmap evolves.

  • Continuous delivery cadence
  • Flexible capacity
  • Your backlog, our pod
  • Pause or scale any time
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FAQ

Fair questions.

Who owns the code? +

You do. 100% of the source code, designs, and documentation are handed over to you. There is no lock-in and no licence fee on your own product.

How is AI actually used in the build? +

Purpose-built AI agents handle the heavy lifting: writing code, tests, and documentation. An experienced human tech lead directs the work and reviews everything before it ships.

Is it secure enough for an established business? +

Yes. Security is part of the design from day one: secure coding practices, automated checks, and deployment into your own cloud under your controls.

How much faster is it, really? +

Up to 10× quicker than a traditional build, because agents work in parallel and around the clock. Speed never bypasses review: every change is tested and checked.

What happens after launch? +

A two month defect warranty is included, along with a clean handover. If you want ongoing delivery, the embedded team option keeps the pod working with you.

What kinds of software can you build? +

Web and mobile applications, internal tools, and API Services, usually built around AI capabilities and integrated with the systems you already run.

Start the conversation

Have a build in mind?

Tell us what you are trying to ship. We will come back with a plan, a team, and a timeline.

Get in touch or write to enquiries@tangent9.com