Custom Mobile App Development
Not Another Dev Shop
Most agencies will assign junior developers to your "custom" app and hope you don't notice the difference. We take a different approach: every line of code is written by engineers with 10+ years of experience building products for Belkin, Sony, and venture-backed startups.
We've taken apps from concept to App Store. We've rescued projects that other agencies broke. We've built IoT platforms, fintech systems, and consumer apps that have won Webby Awards.
The result? Apps that scale when you need them to, code that your future team can actually maintain, and a product your users will love.
They took our product from 0 to 100. ClearSummit redesigned the app, rebuilt it, and reactivated it with a more scalable infrastructure so we could support users on iOS and Android.
Apps We've Built
From IoT platforms to consumer apps to enterprise systems
Belkin - Phyn
Award-winning IoT water monitoring. React Native for iOS and Android, real-time hardware integration.
Project Foodie
Culinary masterclass app with high-fidelity video streaming and interactive recipes.
RealKey
FinTech platform for mortgage document management. Python, Angular, real-time processing.
ClearSummit creates elegant solutions to challenges we threw at them with a minimal learning curve. They have a rare talent of understanding what they're building and what user context it needs to function with.
iOS and Android. Native or Cross-Platform.
The "native vs. cross-platform" debate misses the point. The right choice depends on your product, your timeline, and your users. We've built successful apps using React Native, Swift, and Kotlin—and we'll recommend whichever approach gives you the best outcome.
For most startups, React Native lets us ship faster with a single codebase while maintaining native performance. For hardware-intensive products like Phyn, we architected custom bridges to handle real-time IoT communication. For apps requiring specific platform features, we build native.
We don't have a one-size-fits-all answer because your product isn't one-size-fits-all.
How We Build Apps
Validate Before You Build
Most app failures happen because teams build the wrong thing, not because they build it wrong. We start with Product Liftoff™—a 4-week process that validates your idea, creates interactive prototypes, and produces a development roadmap that actually works.
If you already have validated designs, we'll audit them for technical feasibility and edge cases before writing code.
Architecture That Scales
Before the first line of code, our architects design systems that won't break when you get featured in the App Store. We've built platforms handling thousands of concurrent users—and we've rescued apps that crumbled under their first traffic spike.
You get technical architecture documents, API specifications, and a clear roadmap. No surprises.
Iterative Development
We work in 2-week sprints with demos every cycle. You see working software early and often—not just at the end. This lets us catch issues before they become expensive, and it keeps you in control of the product direction.
Full transparency: you get access to our project management tools, daily progress updates, and direct access to the engineers building your product.
Launch and Beyond
App Store submission, TestFlight distribution, production deployment—we handle all of it. But launch is day one, not the finish line. We stick around for bug fixes, feature iterations, and scaling challenges.
Most clients keep working with us long after launch. Not because they're locked in, but because we've earned their trust.
They were part of our product team, rather than just an outsourced delivery engagement. When we ran into issues, they could help us brainstorm the solution or what the process needed to be.
Our Stack
Technologies We Master
We choose tools that give you leverage, not tools that are trendy.
Is This Right for You?
We're a good fit if:
You're a startup that's raised funding and needs to ship a quality product fast. You're an enterprise launching a new digital product and can't afford junior dev mistakes. You have an existing app that needs to be rescued, rebuilt, or scaled.
We're probably not a good fit if:
You're looking for the cheapest option (we're not). You want to micromanage every technical decision (trust is mutual). You need a team of 50 developers next week (we stay boutique intentionally).
Let's Talk About Your App
We'll give you an honest assessment of what it takes to build—even if that means recommending a different approach than you expected.