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Mobile App Development

Mobile Apps That
Feel Native
On Every Device.

Cross-platform iOS and Android apps with AI built into the core — shipped to both stores, fast, with the performance and polish of a native build.

Start Your Project See capabilities
2
Stores, one codebase
4.8★
Avg. app rating
6wk
Avg. to launch
iOS RN API React Native On-Device Offline Both Stores
What we do

Apps people actually keep on their phone.

A mobile app lives or dies on the first 30 seconds. If it's slow, clunky, or generic, it gets deleted. We build apps that feel fast and native — because performance and UX are where we start, not where we compromise.

Every app we ship is cross-platform (one codebase, both stores), AI-ready, and built around real user behaviour — with on-device intelligence, offline support, and full app-store submission handled for you.

Native-quality, cross-platform. React Native and Flutter — one codebase, full performance, both stores.
AI built into the core. On-device OCR, vision, and LLM features — not bolted on later.
We ship it, end to end. Backend, app, and App Store / Google Play submission all handled.
iOS & Android
One codebase, both stores
On-Device AI
OCR, vision, offline inference
Real-Time & Offline
Sync, push, offline-first
Backend Included
APIs, auth, infrastructure
Capabilities

What goes into your app.

Every capability is production-ready from day one — not a demo, not an experiment. Built to scale.

Cross-Platform Apps
Native-quality iOS and Android from a single React Native or Flutter codebase.
  • React Native / Flutter
  • Native module bridging
  • Both stores at once
On-Device AI
Run ML models directly on the phone — OCR, vision, and inference with no latency.
  • TFLite / CoreML
  • Offline inference
  • Camera & sensor AI
Backend & APIs
The full backend behind the app — auth, data, real-time sync, push.
  • REST / GraphQL APIs
  • Auth & user management
  • Push notifications
Offline-First
Apps that work without a connection and sync seamlessly when back online.
  • Local SQLite storage
  • Background sync
  • Conflict resolution
Product & UX Design
Interfaces designed around real user behaviour, not just screens.
  • UX flows & prototypes
  • Design systems
  • Accessibility (WCAG)
Store Submission
We handle App Store and Google Play review, listing, and release.
  • App Store review
  • Play Store release
  • Versioning & updates
Business challenges

Mobile problems we solve.

The most common bottlenecks holding businesses back — and exactly how we eliminate them.

⚠ The problem
Two builds, double the cost — Separate iOS and Android teams mean twice the budget and timeline.
Apps that feel slow — Web wrappers and poor architecture lead to laggy, deletable apps.
AI features that need the cloud — Cloud round-trips make camera and AI features slow and connectivity-dependent.
Store rejections & delays — Submission rules and review cycles stall launches for weeks.
✦ With Velox
One cross-platform codebase ships to both stores — native quality, roughly half the cost and time.
We architect for performance first — 60fps interactions, fast cold starts, native feel.
On-device models run AI features instantly, offline, with no cloud latency or privacy concerns.
We handle the full submission process and have shipped to both stores many times over.
How we work

Our development process.

The same proven process across every engagement — from a 3-week build to a multi-month platform.

01
Understand requirements
A focused discovery session — we map your current process, the bottleneck, your data, and the measurable outcome we're building toward. We come with questions, not slides.
Free · 30 minProcess mappingSuccess metrics defined
02
Strategy & planning
We design the right architecture for your problem and deliver a fixed-price proposal within 3–5 days, with a week-by-week delivery plan.
3–5 daysArchitecture designFixed price
03
Build & iterate
We build and rigorously test against your success metrics, with weekly live demos so you see real, working progress — not status updates.
Weekly demosWorking softwareEdge-case testing
04
Integration & deployment
We connect the solution to your existing systems and deploy to your environment. Full source-code transfer included.
Your infrastructureFull source codeTeam training
05
Optimisation & support
Post-launch we monitor, refine, and improve based on real usage. Support retainers available for ongoing engineering.
Performance monitoringIterationSupport retainers
Technology

The stack behind the work.

Production-proven tools — not whatever is trending this month.

React Native
Cross-platform
Flutter
Cross-platform
Swift
iOS native
Kotlin
Android native
Firebase
Backend / auth
TFLite / CoreML
On-device AI
FastAPI / Node
Backend APIs
PostgreSQL
Data store
Why Velox

What makes our work different.

Not every agency has shipped production systems. We have — and the difference shows in everything we deliver.

Custom-built, not templated
Everything we ship is built for your specific problem and data — not a generic template wrapped in your logo.
Scales without the cost
Architected to handle 10× the volume with zero marginal cost. Growth doesn't require proportional headcount.
Secure & compliant by design
HIPAA, GDPR, and enterprise security built into the architecture — private VPCs, encryption, on-device options.
4–8 weeks to production
We eliminate the 6-month cycle. Fixed scope, weekly demos, production in weeks. Velox is Latin for fast.
Senior engineers, every project
No juniors learning on your production system. Every engagement is staffed by engineers who have shipped real systems.
50+
Systems in production
4–8wk
Average delivery
98%
Client satisfaction
0
Junior engineers on your project
Accelerating Intelligence.
Use cases

Apps across industries.

Deployed across industries — each with different data and constraints. Same production quality across all of them.

Fintech
Expense, payments, and personal finance apps.
OCR
Healthcare
Patient, diagnostic, and field-health apps.
On-device
Agri-tech
Offline field tools and on-device vision.
Edge AI
Retail & D2C
Commerce, loyalty, and assistant apps.
Consumer
Field Ops
Inspection, safety, and on-site tools.
Offline-first
Related case studies

Apps we've shipped.

All case studies →
Fintech · Mobile App
AI Expense Tracker with On-Device OCR
Expense reporting was slow, manual, and universally hated.
React Native + on-device OCR + LLM parsing + accounting sync
4.8★
App Store rating
6wk
To both stores
Agri-tech · Mobile + CV
On-Device Crop Disease Detection App
Diagnosing crop disease took 30–60 min per field visit, offline.
Flutter + quantised TFLite model running fully on-device
91%
On-device accuracy
7wk
To App Store
Construction · Mobile CV
Real-Time PPE Detection Mobile App
Recurring HSE violations with no scalable enforcement on site.
React Native + on-device YOLOv8 at 30fps, no connectivity
96%
Detection accuracy
7wk
To production
FAQ

Common questions.

Anything not answered here — reach out directly.

Ask us anything →
Native or cross-platform — which do you build?
Cross-platform (React Native or Flutter) for almost every project — it ships to both stores from one codebase with native-quality performance. We drop to native modules where a feature truly needs it.
Can the app work offline?
Yes. We build offline-first where it matters — local storage, background sync, and on-device AI so the app works with no connection and syncs when it's back.
Do you handle App Store submission?
Yes — we manage the full App Store and Google Play submission, review, and release process for you.
How long does a mobile app take?
Most apps ship to both stores in about 6 weeks. We give you a fixed timeline after scoping.
Get started

Ready to Build
Your Mobile App?

Tell us what you want to build — we'll map it to a cross-platform app shipped to both stores fast.

Start Your Project See our work
Free 30-min discovery call  ·  Fixed pricing  ·  Production in 4–8 weeks