Mobile App Development Company in California
Native and cross-platform iOS and Android app development for California businesses, with CCPA-aware data practices built in from day one.
Real apps we've built
Mobile App Development Services for California Businesses
Custom Mobile Apps
Full-cycle engineering scoped to your exact business logic.
iOS Development
Native Swift and SwiftUI engineering for the Apple ecosystem.
Android Development
Kotlin-first builds tested across real device fragmentation.
AI-Powered Apps
On-device inference and generative features built in.
Enterprise Integration
CRM, ERP and legacy API connections without brittle hacks.
Proven Results, Real Products
A flexible dating and social platform letting users connect for romance, friendship, or conversation on their own terms — profile discovery, messaging, and location-aware matching.
A video-editing app for adding customizable text and image tickers to video — fonts, colors, and styles built for creators who need fast, professional captioning.
An on-demand dog-walking marketplace connecting pet owners with trusted local walkers — scheduling, walker profiles, and real-time walk updates.
Built With CCPA in Mind From Day One
CCPA-Aware by Design
California Consumer Privacy Act considerations — data minimisation, opt-out handling, disclosure requirements — scoped into the architecture from the first sprint.
Transparent Data Practices
Clear data-collection disclosures built into the app itself, not buried in a privacy policy nobody reads.
Right-to-Delete Support
User data deletion flows that actually work end-to-end, not just a support-ticket promise.
“The AI-powered fitness platform Apptechies developed integrates personalized workout plans, nutrition tracking, and real-time progress monitoring in one beautiful app. Their technical execution has been exceptional.”
Why California Businesses Choose Us
Flexible Ways to Work With Our Team
Dedicated Developer
One engineer, 100% dedicated to your California project, reporting directly to you.
Extended Team
Embedded inside your existing team, matching your tools and standups.
Project-Based
Fixed scope, timeline and budget — ideal for a well-defined build.
Everything You Need to Know Before You Hire.
The questions we hear most from teams hiring a mobile app development team. Don't see yours? Ask us directly on the right.
Yes — data minimisation, opt-out handling and disclosure requirements are scoped into the architecture during discovery, not retrofitted before launch.
A focused MVP typically runs $30,000–$70,000, while a full-featured enterprise app with AI features and complex integrations can run $150,000+. We quote against your actual requirements after a discovery call.
Our teams work from our London and Austin, Texas offices and serve California clients remotely with strong Pacific-time overlap — we're upfront that we don't have a dedicated California office.
An MVP typically takes 10-14 weeks from kickoff to App Store submission. A more complex enterprise app usually runs 20-28 weeks.
Healthcare, FinTech, on-demand, eCommerce and media see the most demand, though our 600+ delivered solutions span 25+ industries in total.
Yes — we're happy to sign an NDA before any detailed discussion of your app concept or business logic.
Hire a Mobile App Development Team
Tell us what you're building — a senior engineer or solutions architect replies within 24 hours.