Service [02]

AI Custom Application Development

When off-the-shelf AI tools don't fit, we build the application that does — end-to-end, from model to interface.

Typical timeline8–14 weeks
TeamSenior, cross-functional
StackReact Native · Python · Fine-tuning
Start with2-week discovery

Problem and approach

The problem

Generic AI tools can't see your proprietary data, don't match your workflow, and often can't meet your security or data-residency rules..

Generic AI tools can't see your proprietary data, don't match your workflow, and often can't meet your security or data-residency rules.

Our approach

Production-ready from day one.

We build custom applications around private or fine-tuned models, deploy them where your data must live, and design interfaces your team will actually adopt.

Capabilities

What we deliver.

Modular capabilities we combine into one coherent system for your use case.

[02.1]

Cross-platform apps

iOS, Android and desktop apps with on-device and cloud AI features.

[02.2]

Document intelligence

Extract, classify and validate data from invoices, contracts, forms and scans.

[02.3]

Computer vision

Detection, inspection and OCR pipelines for images and video streams.

[02.4]

Fine-tuning & distillation

Domain-tuned small models that beat general models on your task — at a fraction of the cost.

[02.5]

Private deployment

VPC, on-prem or air-gapped deployments with open-weight models.

[02.6]

Analytics & forecasting

Predictive models and AI-generated insights surfaced in custom dashboards.

Use cases

Where it pays off.

Examples of what this service can do for your business.

Example use case

Claims processing app

A mobile + web app that reads claim documents and photos, flags fraud signals and pre-fills adjudication.

Discuss a similar build
Architecture

How it fits together.

A typical reference design — adapted to your cloud, data and security model.

Reference architecture for AI Custom Application Development Request flows from Mobile / Desktop through Sync API to the Model Service, which coordinates Doc Parser and Fine-tuned LLM, backed by Data Lake and observed by Monitoring. Mobile / Desktop Sync API Model Service Doc Parser Fine-tuned LLM Data Lake [ reference architecture ] observability: Monitoring
How we build

From idea to production in 5 moves.

A fixed-scope, evidence-first process. You see working software every week — and real numbers before you commit to the full build.

1–2 weeks

Discover

We audit workflows, data and systems, then rank AI opportunities by ROI and feasibility.

Opportunity mapTechnical briefFixed-scope proposal
2 weeks

Prototype

A working prototype on your real data, with evals that prove quality before we commit to a build.

Clickable prototypeEval reportArchitecture plan
6–12 weeks

Build

Weekly sprints shipping production code to your repos, with demos every Friday.

Production app / agentTest & eval suitesDocumentation
1–2 weeks

Deploy

Staged rollout with monitoring, guardrails, cost controls and team training.

Live systemDashboards & alertsRunbooks
Ongoing

Optimize

We measure outcomes, tune prompts and models, cut cost and expand to the next use case.

KPI reportsModel upgradesRoadmap
FAQ

Common questions.

Can the AI run fully on our infrastructure?

Yes. We deploy open-weight models (Llama, Mistral, Qwen) inside your VPC or on-prem, with no data leaving your environment.

Do we need to fine-tune a model?

Often not. We start with prompting and retrieval, and only fine-tune when evals show a clear quality or cost win.

Do you build mobile apps too?

Yes — React Native, Flutter or native Swift/Kotlin, depending on performance and on-device AI needs.

How long does a custom build take?

A production MVP typically takes 8–14 weeks, preceded by a 2-week discovery and prototype phase.

[ Next step ]

Ready to scope your custom ai apps project?

Book a 30-minute strategy call. We'll map your highest-ROI AI opportunities and tell you honestly what's worth building.

info@rkcreativesdigital.com