

120Hz Native Android Apps
We build high-performance Android applications from the ground up. By focusing exclusively on native Kotlin and Jetpack Compose, we eliminate wrapper bloat and deliver fluid 120Hz rendering that drives user retention.
Engineered for speed
We rescue sluggish Android ports and rebuild them into high-performance native experiences. These real-world metrics demonstrate the impact of native Kotlin architecture on user engagement and performance.
Fintech Scale-up
Logistics Platform
Fitness Wearable
Rebuilt a sluggish investment app into native Jetpack Compose. We eliminated frame drops entirely and cut cold start times by 64%, resulting in a massive boost to active daily users.
Optimized battery-efficient background tasks and location tracking for a nationwide delivery network. The native rebuild resolved persistent sync errors and boosted active driver retention by 42%.
Implemented Material You and optimized Bluetooth rendering pipelines to lock consistent 120Hz animations across diverse Android devices, creating a premium tactile feel for wearable users.
64%
Faster Load Time
42%
Retention Boost
120Hz
Locked Rendering




Verified performance gains
KARUZO rescued our Android app. They eliminated the stuttering animations and delivered a native Kotlin experience that our users love.
CTO, Neobank Scale-up
The 120Hz rendering is flawless. Our previous cross-platform app felt sluggish, but this native build feels incredibly responsive and fast.
VP of Product, FitTech
KARUZO
Android-exclusive native engineering.
RESCUE YOUR METRICS
build@karuzo.dev
San Francisco + Remote
Response within 12 hours
© 2026 KARUZO-Android-exclusive native engineering.
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