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iOS AI Development & On-Device Intelligence for Startups That Ship.

I build production iOS and macOS apps for startups and small teams. I focus on AI-native apps that run on the device. That means fast responses, lower cloud cost, and better privacy for your users.

Technical deep dive: Swift 6 & AI integration guide series · Read our iOS AI Development Guide

We follow Apple standards for privacy, AI, and release quality. See Core ML, Foundation Models, App Privacy Details, and App Store Review Guidelines.

3NSOFTS product showcase on iPhone, iPad, and Mac

8+

Apps shipped

5 days

Audit delivery

0 bytes

Data to servers

100%

On-device AI

Built on

Swift
SwiftUI
Core ML
CloudKit
HealthKit
Foundation Models

8 iOS apps & 4 Mac apps shipped on the App Store

Architecture audits completed in under 5 business days

100% on-device AI — zero cloud dependency

SwiftUI MVPs delivered in 4-week sprints

Systems Built

Real systems delivered in production. From complex business platforms to developer tooling.

Inventory and dispatch management platform for small businesses
Offline-first sync architectures with SwiftData and CloudKit
AI-powered meal planning and macro-tracking system
Apple Watch health and stress monitoring apps
Health data dashboards using Apple HealthKit
Xcode configuration diagnostic tooling for iOS developers

Who This Is For

I work with specific types of teams and projects. Clear fit means better outcomes.

Ideal for
Funded startups building their first iOS app
Privacy-first products needing on-device processing
Complex data-driven apps requiring solid architecture
Teams needing production-grade architecture from day one
Not for
Marketing websites or simple content apps
Low-budget MVPs looking for the cheapest option
Template customization or white-label solutions
Projects requiring 24/7 support or immediate turnaround

Three Ways to Work Together

Fixed-scope services with clear outputs, clear timelines, and senior-level execution.

Apple Platform MVP Sprint

We build the first production version of your app in one focused sprint. You get a strong SwiftUI foundation, data sync, and an App Store-ready build. Think of it like building the frame of a house before adding rooms.

Starting from

€8,400

6–8 weeks · Sprint-based, async collaboration

→ App Store-ready iOS/iPadOS app

Proof

Real systems built through 3NSOFTS. Problem → System → Outcome. Real numbers from real deployments.

The Company App iPad screenshot showing inventory dashboard

The Company App

Offline-First Operations Platform

★★★★★5.0

Problem

SMEs juggling spreadsheets, messaging apps, and paper notes for inventory and dispatch.

System

Native iOS/iPadOS app with Core Data + CloudKit. Works offline first and syncs for smooth team collaboration.

Outcome

Consolidated 3 fragmented tools (spreadsheets, messaging, paper notes) into one offline-first iOS/iPadOS app.

65%reduction in team coordination time
100%elimination of data fragmentation incidents
500+inventory items handled with zero sync conflicts
Read case study →
Xcode Doctor macOS app showing configuration checks

Xcode Doctor

Developer Tool

★★★★★5.0 · 500+ users

Problem

iOS developers lose hours fixing Xcode config issues. These issues can cause build failures and App Store rejections.

System

Native macOS app that runs 9 focused checks in under 2 seconds. Analysis is read-only.

Outcome

Catches Xcode configuration errors before they cause damage. Prevents App Store rejections and build failures.

<2sanalysis time across 9 critical checks
4-6hsaved per developer per incident
500+active users relying on daily diagnostics
0modifications — read-only analysis eliminates risk
Learn more about Xcode Doctor →
offgrid:AI iOS app offline conversation screen

offgrid:AI

Offline AI Assistant

★★★★★5.0

Problem

Some users need AI with no internet and no privacy trade-offs.

System

The app uses Apple Intelligence. It runs entirely on-device — battery-aware, no cloud.

Outcome

100% offline AI inference using Apple Intelligence and Neural Engine. Critical for emergency and off-grid scenarios.

0 bytestransmitted to external servers
40%battery life extension vs. cloud-dependent AI
100%on-device inference — no network required
Learn more about offgrid:AI →

3NSOFTS consolidated three disconnected tools into one iOS workflow and cut our coordination overhead by 65% in the first month.

Daniel Rowe, Operations DirectorDaniel Rowe, Operations Director

Their architecture and tooling recommendations now save our team 4 to 6 engineering hours every time Xcode breaks a build pipeline.

Mina Patel, Co-FounderMina Patel, Co-Founder

The on-device AI architecture gave us 0-byte external data transfer and extended battery life by 40% for emergency use cases.

Aisha Bennett, Product LeadAisha Bennett, Product Lead

Industry Context

“Apple Intelligence is the personal intelligence system for iPhone, iPad, and Mac. It draws on your personal context to give you intelligence that's most helpful and relevant to you. Privacy protections are built in from the ground up.”

3NSOFTS builds production apps on this exact infrastructure. We use Apple Foundation Models, Core ML, and Apple Intelligence to ship AI features that run without a cloud connection.

Unfair Advantage

Why teams choose 3NSOFTS when they need reliable systems, not quick demos.

Local-first architecture

Your app works even when signal drops. Data saves locally first, then syncs in the background.

  • Built with Core Data and CloudKit.
  • Users can keep working offline.
  • Sync conflicts are planned early, not patched later.
  • Core Data + CloudKit sync reduces server API dependency by up to 80% for read-heavy workflows (Apple Developer Documentation, 2024).

On-device AI

We run AI on the device, not in the cloud. That keeps features fast and private.

SwiftUI systems design

We build SwiftUI code that scales beyond a prototype. Teams can add features without rewrites.

  • Clear data flow and modular screen structure.
  • Reusable components with predictable behavior.
  • Testing support for key screens and states.

Long-term maintainability

We optimize for the next 12 months, not only for launch week.

  • We document architecture decisions as we build.
  • Dependencies stay minimal and intentional.
  • Code stays readable for the next engineer on your team.

Shipped products

Built in production

Real apps on the App Store. Each one a working proof of a specific architectural decision.

The Company App app icon

The Company App

Offline-first business operations

Core Data + CloudKit sync

iOSiPadOS
Learn more →
offgrid:AI app icon

offgrid:AI

Fully offline AI assistant

Apple Intelligence · zero network calls

iOSOffline
Learn more →
Xcode Doctor app icon

Xcode Doctor

Xcode project diagnostics

Static analysis · no sandbox escape

macOSFree
Learn more →

Common Questions

Plain answers to the questions founders and product teams ask before starting.

What kind of apps does 3NSOFTS build?

Production-grade iOS, iPadOS, and macOS apps. Most projects handle complex data, offline-first workflows, and on-device AI. We do not focus on simple CRUD apps or quick prototypes.

Do you work with idea-stage startups?

Yes, if the product problem is defined and the team is serious about shipping. The MVP Sprint is for early-stage products that need a solid technical foundation from day one.

What is AI-native software?

AI-native software has AI built into its core from day one. It is not added later as a feature. We use Core ML or Apple Foundation Models for on-device inference. The AI connects directly to the app's data layer. It is never bolted on after launch.

How long does a project take?

The Architecture Audit delivers in 5 business days. The MVP Sprint runs 6–8 weeks. On-Device AI Integration runs 3–4 weeks. All engagements are fixed-scope and fixed-price.

What is on-device AI and why does it matter?

On-device AI means the model runs on your device, not a remote server. Nothing leaves your phone. Apple’s Core ML delivers under 10ms latency on A17 Pro and M-series chips — fast enough to feel instant. Features work offline. And there are no per-request API costs from third-party AI providers.

Start a Project

New engagements start with a short application. It helps confirm we are the right fit before we begin.

Other inquiries

For partnerships, press, or non-project inquiries: info@3nsofts.com