APP DEVELOPMENT
Mobile apps built on better technical decisions
Infinite Red is known world-wide as the mobile app agency when you want the highest quality software and top-notch team. Our highly skilled mobile app developers (averaging 15 years of software experience) have built hundreds of mobile apps in React Native, Expo, Swift, and Kotlin over the last decade,
and now are leading the way in agentic coding to help your app (web, back end, & desktop) succeed.
We work beside you every day.
Your team has a lot on its plate. Infinite Red's mobile app developers can help you with the entire process, from planning to implementation to quality assurance to the App Stores, right into your users' hands.
- 01
Your codebase and process
We contribute through your repositories, planning practices, reviews, and delivery workflow.
- 02
Architecture and tradeoffs
We make the consequences of technical choices clear before committing the team to a path.
- 03
Pairing and knowledge transfer
We work alongside your engineers and explain the judgment behind the implementation.
- 04
Hard implementation work
We take on complex mobile architecture, integrations, migrations, and performance challenges.
- 05
Testing and release readiness
We build validation and release considerations into the work as it moves toward users.
- 06
Maintainability and ownership
We leave code, documentation, and technical context your internal team can continue to own.
Our work has to fit the way your team works
We contribute through your codebase, planning, reviews, standards, and release workflow.
We promise the hard calls are made together
We work with technical leads on architecture and take ownership of difficult implementation.
We help in building internal ownership on your team
Pairing, documentation, and knowledge transfer help your team maintain and extend the work.
WHERE WE CAN HELP
Move the work forward without creating the next problem.
Whether you are starting fresh or untangling years of technical decisions, we help your team choose a sound path and carry it through.
01
Greenfield app development
Turn a product direction into an architecture, codebase, and release plan your team can build on.
02
Modernization and rewrites
Replace fragile foundations, consolidate platforms, or move a mature app forward without losing sight of the product around it.
03
Performance and rescue work
Trace difficult performance, stability, and delivery problems to their source, then fix what is holding the app back.
04
Native integrations and modules
Build the Swift or Kotlin components a cross-platform app needs to reach deeper platform capabilities.
05
Mobile audits
Review architecture, performance, dependencies, release practices, and maintainability so your next decisions rest on clearer evidence.
06
Team augmentation
Add senior mobile engineers who can contribute inside your codebase, process, and existing technical leadership.
Swift / iOS
We got started with fully native iOS development -- back when Objective-C, Interface Builder, and springs and struts were all the rage!
This expertise helps us build or modernize any fully native iOS app in Swift / Swift UI, add native modules and integrations, and make sure your app runs and feels beautiful.
We work with your technical leads to make architecture, testing, release, and native iOS integration decisions in the context of the product and team, as well as develop quality agentic software automation to glue it all together.
Kotlin / Android
Infinite Red's Android knowledge goes deep -- back over a decade -- and we're able to deliver on that.
We can help you build or modernize a fully native Android app in Kotlin, add native modules and integrations, or assess an existing codebase.
Native Android development can be challenging. Don't go alone. Use Infinite Red!
Explore Infinite Red's Kotlin / Jetpack Compose development services
Expo
Expo is the best way to build cross-platform mobile apps, and Infinite Red has been an official Expo Partner for many years.
We intimately know Expo, EAS, config plugins, native integrations, build and release workflows, and how to meld it all together using agentic software development practices that keep quality and confidence high.We also know their team well and have a great relationship. If your Expo app or EAS has a problem, we have the inside track to get it fixed.
React Native
React Native has been the industry standard for cross-platform mobile app development since 2015 -- and we were there at the very beginning.
Infinite Red software developers have been part of the core React Native team since the very early days and contributed to bugfixes, features, and even led full releases end-to-end.
We help your team decide what belongs in shared code, where platform-specific work matters, and how to keep the system maintainable. And our React Native open-source work and community involvement speak for themselves.
CHOOSING THE TECHNICAL PATH
Choose for the product you have—and the one you are building toward.
We weigh the product, existing codebase, platform requirements, delivery constraints, and who will own the work over time. The answer may be React Native, Expo, fully native development, or a considered combination.
- ProductExperience, roadmap, and priorities
- CodebaseWhat exists and what must change
- PlatformShared needs and native depth
- TeamSkills, workflow, and ownership
React Native
Build or modernize a shared mobile codebase when cross-platform delivery fits the product and team.
Expo
Use Expo when its platform and tooling fit your product, integrations, and release needs.
Swift
Build or modernize a fully native iOS app, develop Swift modules and integrations, or audit an existing codebase.
Kotlin
Build or modernize a fully native Android app, develop Kotlin modules and integrations, or audit an existing codebase.
When one path is not enough
Some products benefit from shared application code with targeted native modules or integrations. We help determine what belongs in each layer, define the boundaries, and build the parts so the whole system remains understandable and maintainable.
EVIDENCE FROM THE WORK
Better decisions should show up in the product and the team.
These client-reported outcomes show how technical delivery and internal capability can move forward together.
TEAM ENABLEMENT
Infinite Red paired with and onboarded engineers while one client expanded mobile participation from 5 Android engineers to 16 mobile engineers contributing across both platforms.
PERFORMANCE AND MAINTAINABILITY
In the same engagement, the client reported a joint outcome of 52% faster Android startup, alongside easier maintenance, less duplicate effort, and accessibility work.
JUDGMENT TRANSFER
At another client, work reached public beta; its CTO credited Infinite Red with advancing development, training the team, and helping avoid state-management, performance-tuning, and third-party-module pitfalls.
Placeholder slots only. No testimonial, client name, or metric is present or implied until editorial supplies vetted proof.
Bring us the mobile decision that needs a clearer path.
Share a product brief, architecture question, troubled app, or uncertain technology choice, and we will start with what your team and product need.
Ready to get started with us? Chat with our team over zoom
There’s no perfect time to get started. Whether you have a formal proposal or a few napkin sketches, we’re always happy to chat about your project at any stage of the process.
Schedule a call
