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SLIDEFACTORY

Portland App Developers

Modern mobile apps aren't add-ons to your business—they're often where the real work happens. Whether your team is tracking motion data in the field, managing fantasy leagues with thousands of concurrent users, or giving creators tools to collaborate on the move, the app has to perform under real conditions: unreliable connections, battery constraints, background syncing, and users who expect desktop-level functionality in their pocket.

We're Portland app developers who build mobile applications that hold up to how businesses actually operate. Not just interfaces—complete systems designed for performance, reliability, and long-term growth.

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Companies we’ve collaborated with

App Development Agency

Mobile Apps Built for How Portland Businesses Actually Operate

Mobile development isn't just scaling down a website. It's building for interrupted connections on job sites, managing state across app backgrounds and restarts, handling sensors and hardware integrations, and ensuring every interaction feels immediate even when data is syncing behind the scenes.

Portland businesses need mobile apps that function in the real world—on construction sites, in gyms during training sessions, at events with spotty wifi, or in hands moving between a dozen tabs and notifications. We approach mobile app development as product and system design: understanding where the app fits into workflows, what happens when things go offline, and how to structure data so the experience never feels like it's waiting on the network.

We're not building prototypes that break under load. We're building production systems that Portland companies rely on daily.

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Core Capabilities

What We Build

Mobile app development in Portland spans industries, but the technical requirements often look similar: apps need to handle complex data, work offline, integrate with APIs or hardware, and scale as usage grows. Here's what we build most often.

React Native App Development

Cross-platform apps that share a single codebase between iOS and Android while still feeling native. Ideal for startups and growing companies that need to reach both platforms without doubling development time. We've built React Native apps for performance tracking systems that process motion data in real time, and music platforms where millisecond-level responsiveness matters as much as visual polish.

Native iOS & Android Applications

When performance, hardware access, or platform-specific features are non-negotiable, native development is the answer. Native apps give you full control over animations, sensor integration, and memory management. We've worked on native builds for apps analyzing complex motion data, where frame rates and sensor accuracy were critical to the product's value.

Data-Driven & Companion Mobile Apps

Mobile apps that extend web platforms or serve as lightweight interfaces to complex backend systems. These apps prioritize efficient data loading, caching strategies, and smart sync logic so users can interact with large datasets without lag. We've built companion apps for mapping platforms with millions of data points and fantasy sports tools managing live scoring across thousands of leagues.

Sensor-Based, Hardware-Connected Apps

Apps that interact with Bluetooth devices, GPS tracking, accelerometers, or other hardware. Common in fitness, health, logistics, and field operations. Reliable sensor apps require careful battery management, background task handling, and clear feedback when connections drop. We've built apps that track movement and performance metrics in real time, feeding data to analytics systems while maintaining battery efficiency.

Secure Account-Based Mobile Platforms

Apps where users log in, manage profiles, interact with each other, or access role-based content. These require secure authentication flows, encrypted local storage, and carefully structured API communication. We've worked on creator platforms where user-generated content, permissions, and social features all had to scale reliably without compromising security.

Under the Hood

Technical Foundation of High-Quality Mobile Apps

Performance That Users Notice

Mobile app performance isn't abstract—it's every swipe, tap, and animation. Users notice when scrolling stutters, when buttons take too long to respond, or when an app drains their battery in an hour. We build apps with smooth 60fps animations, optimized memory usage, and efficient render cycles. Performance creates trust, and trust keeps users coming back.

Offline-First & Sync-Ready Design

Real-world mobile use means dropped connections, airplane mode, spotty cell service. Apps built with offline-first architecture let users keep working regardless of network status, then sync changes when connectivity returns. This requires thoughtful data modeling, conflict resolution strategies, and background sync logic that doesn't interrupt the user experience.

Security & Data Protection

Mobile apps are endpoints—they're outside your firewall, on devices you don't control. Security starts with encrypted data at rest, secure token-based authentication, and API communication over HTTPS with certificate pinning where appropriate. We implement role-based access control, handle sensitive data carefully, and follow platform-specific security guidelines for iOS and Android.

Scalability for Growing Portland Companies

A well-architected mobile app grows with your business. Adding features shouldn't mean rebuilding from scratch. We structure apps with modular components, clear separation between UI and business logic, and APIs designed to evolve. Whether you're adding new user roles, integrating third-party services, or expanding to new platforms, the foundation should support it.

Our Approach

How We Approach Mobile App Projects

Product & Technical Discovery

Before any code, we map out what the app actually needs to do. What platforms? Native or cross-platform? What's the data model? Where are the performance bottlenecks likely to show up? Are there hardware integrations or offline requirements? Discovery is where we make decisions that affect the entire project timeline and long-term maintainability.

Iterative Development

We don't disappear for months and return with a finished app. You see working builds throughout development—deployed to TestFlight for iOS or internal tracks on the Play Store. Feedback loops stay short. Features get tested in your hands, on real devices, as soon as they're functional.

QA Across Real Devices

Simulators are useful, but they don't catch everything. We test on real devices across iOS and Android versions, different screen sizes, and varying network conditions. Edge cases matter: what happens when the app is backgrounded during a sync? How does it handle OS permission changes? Does it perform on older devices still common in the market?

Documentation & Long-Term Support

You get complete documentation—code structure, API endpoints, deployment processes, app store submission guidelines. If you have an internal team, they can take over. If you don't, we provide ongoing support: OS updates, bug fixes, feature expansion. The app doesn't become a black box the moment it launches.

Sector Expertise

Mobile App Development Across Industries

Mobile Technology Stack

Mobile Frameworks & Languages

React Native, Swift, Kotlin, Objective-C, Java

State Management & Data

Redux, Zustand, React Query, Core Data, Room, SQLite

APIs & Communication

REST APIs, GraphQL, WebSockets, real-time services

Hardware & Sensors

Bluetooth LE, GPS, accelerometer, gyroscope, camera, microphone

Authentication & Security

OAuth, JWT, biometric authentication, secure storage

Deployment & Testing

App Store Connect, Google Play Console, TestFlight, Firebase, CI/CD pipelines

Local. Global.

Working With Portland Businesses and Beyond

We're based in Portland and work directly with local businesses who value in-person collaboration during discovery and key project phases. We understand the industries that drive the region—from tech and creative services to outdoor brands, healthcare, and field operations.

We also work remotely with companies outside Portland. Our process is built for clear communication regardless of location: structured updates, working builds you can test, and documentation that keeps everyone aligned.

Whether you're in Portland or beyond, you get the same attention to detail, technical rigor, and long-term thinking.

Freedom to Grow

Ownership, Support, and Growth

You Own Your App and Code

You own everything we build—full source code, design assets, documentation. No licensing fees, no proprietary platforms locking you in. If you want to move development in-house or to another team, you have everything you need.

Ongoing Maintenance & OS Updates

Mobile apps require maintenance. iOS and Android release updates that can break existing functionality. APIs change. Devices evolve. We offer ongoing support to keep your app current, secure, and performing well as the ecosystem shifts.

Feature Expansion Without Rebuilds

A well-built app supports growth. Adding features, integrating new services, or expanding to additional platforms shouldn't require starting over. We structure apps to evolve, so your investment compounds rather than becoming a sunk cost every few years.

Getting Started

Starting a Mobile App Project

Most projects start with a conversation—what problem you're solving, who's using the app, and what success looks like. From there, we scope out timeline, platform decisions, and budget.

Simple MVP apps often start in the $50,000–$80,000 range. More complex platforms with real-time data, hardware integrations, or extensive backend systems typically run $100,000–$250,000+. Every project is different, and we're transparent about what's realistic for your timeline and goals.

If you're ready to talk through a mobile app project, get in touch. We'll tell you what we think makes sense—and what doesn't.

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Services

Unique Solutions to Hard Problems

At SLIDEFACTORY, we know that every web project is unique — and building the right solution requires more than a template or theme. Based in Portland, Oregon, our team collaborates closely with clients to design and develop custom web solutions tailored to their goals.

Web & Mobile Applications for IOS & Android

Build custom Web, Native, and Cross Platform Mobile apps for IOS and Android devices. Apps for Social and Gaming.

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Creative & Generative AI Production

High Quality and Low cost scalable Content Creation Using Generative AI for Social Media, Training Videos, Voice, & Creative Campaigns.

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Digital Marketing & SEO

Improve search rankings and increase traffic with expert Digital Marketing & Portland SEO Services.

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Game Development

Custom game development for desktop, mobile, VR, and web.

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Unity Development

Expert Unity development for immersive games, training programs, and dynamic marketing campaigns.

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Product Development

Develop custom mobile applications to enhance user engagement and drive business growth.

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Our Work

Our Latest Works.

Our work blends technical expertise with creative problem-solving to deliver AI-powered solutions that solve complex challenges and produce measurable, lasting results for our clients in Portland, Oregon and beyond.

Motusi

Unity, React Native, 3D, Animation

Learning Software Client

Python, Node.js, AI, UX

Confidential AR Client

AR/VR, Game Development, 3D

Byldr VR

3D, Unity, Node.js, UX, C#

Blog

The Factory Floor

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Master AI search in 2026 with proven GEO strategies from SLIDEFACTORY. Learn llms.txt implementation, entity-chain schema, and multimodal optimization techniques that help AI engines understand and recommend your brand.

What is GEO: A Guide to Getting Ranked in LLMs and Generative Search

Learn Generative Engine Optimization (GEO) - the new SEO for AI. Get your content cited in ChatGPT, Claude & AI search with proven ranking strategies.

Building an AI Video Development Workflow: Bigfoots Digital Survival Guide

Learn to build an AI video development workflow for commercials using generative AI. From scripting to editing, use generative AI for creative production.

Are You Ready?
Let’s Get Started.

Want to make something incredible? We'd love to hear from you.

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