agent 01
In-app assistant
Natural-language support, search, or sales inside the app, built on your own content.
triggerUser taps the assistant icon or asks a voice query.
Answer plus deep links into the right screen or flow.
iOS · Android · Cross-platform
Mobile apps that rank in stores and retain users.
Native iOS (Swift), Android (Kotlin), and cross-platform (React Native, Flutter), one senior team covering UX, engineering, backend, release ops, and ASO.
Book a strategy callSee our work
iOS + Android
both stores, one senior team
< 60d
MVP to TestFlight
< 50MB
median binary size
4
platforms, one team
Mobile app development is the design, engineering, and release management of software that ships through the App Store and Google Play, where store review, binary size, and crash rate are part of the product. Cubitrek covers all of it with one senior team: native Swift and Kotlin, React Native and Flutter, the backend behind them, release ops, and App Store Optimization. A great mobile app is the outcome of clean architecture, ruthless UX, disciplined release management, and a store presence that actually ranks. We deliver all four, on iOS, Android, React Native, or Flutter.
What we ship
Everything under one roof, delivered by senior operators.
Native iOS & Android
Swift/SwiftUI and Kotlin/Jetpack Compose, for apps that demand platform-level fidelity.
Cross-platform
React Native and Flutter for teams that want one codebase on both stores.
Mobile UX
Research, flows, motion, and accessibility, designed for thumbs, not desktops.
Backend & APIs
Node, Python, Firebase, Supabase, backend infra that scales with your app.
Release & ASO
TestFlight, Play Internal, phased rollouts, and App Store Optimization for organic downloads.
Crash-free engineering
Sentry, Crashlytics, and automated E2E testing so releases ship clean.
AI in the loop
The agents that ship in every build.
The apps we ship arrive with AI baked into the product itself, plus agents inside the build pipeline so quality stays high as you add features.
agent 02
On-device personalizer
Ranks content, offers, and push notifications by user signals on the device.
triggerRuns on every session open and every key event.
Personalized feed, offer, or CTA. No data leaves the device unless you choose.
agent 03
Release QA agent
Runs UI smoke tests on iOS and Android emulators on every merge.
triggerRuns on every PR to main.
Screenshots, crash reports, and a go or no-go verdict.
agent 04
Store listing agent
Optimizes App Store and Play Store titles, keywords, and screenshots.
triggerRuns monthly and after every major release.
A/B tested listing with higher tap-through and install rate.
AI in the product. AI in the build. That is the only honest way to ship mobile in 2026.
How we work
A four-stage cadence that compounds every sprint.
What good looks like
Representative outcomes from recent programs.
Directional numbers from real programs. On the strategy call we walk through the full case studies behind them, methodology included.
99.8%+
crash-free sessions we hold releases to
+63%
organic installs month-over-month
< 0.2%
crash rate ceiling before we ship an update
Who we serve
Categories we know well.
Not a list of logos, a list of categories where we already speak the language and know the funnel.
ConsumerFintechHealthcareEducationReal estateMarketplaces
What clients say
4.6 / 5
across 4 verified Clutch reviews
“I was particularly impressed by their creative approach and attention to detail.”
“They delivered the project on time.”
“Cubitrek always had a positive mindset and was kind.”
Frequently asked questions
- Native when you need platform-level fidelity (camera, AR, hardware access). Cross-platform (React Native or Flutter) when speed to both stores and shared logic outweigh platform polish. We'll recommend honestly based on your product.
- Yes, App Store and Play Store setup, ASO, review responses, phased rollouts, and post-launch release ops.
- We build the backend too, Node, Python, Postgres, Firebase, or Supabase. Or integrate with your existing APIs.
- Yes, audits, performance fixes, rewrites, and incremental refactors are a big part of what we do.
- Yes, retainer-based post-launch care for crash monitoring, OS updates, and ongoing feature work.
Keep exploring
Related services
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Ready when you are
Ready to start mobile app development?
A 30-minute call. We map your goal, audit what exists, and come back with a scoped plan, usually within 72 hours.
Book a strategy call