Get in Touch

Apps With Native Polish and Enterprise Rigor

iOS, Android, and cross-platform applications built by senior engineers — from first wireframe to App Store featured, with the release discipline of enterprise software behind every update.

48-hour proposal Fixed-price clarity 99.99% uptime SLA 24/7 support
0+Apps shipped to stores
0.8★Average store rating
0.9%Crash-free sessions
0 wksMedian time to first release
// What You Get

One Codebase, Two Stores, Zero Compromises

We build with Flutter and React Native where it makes sense and go fully native where it matters — camera pipelines, background sync, payments, offline mode. The result feels indistinguishable from native because in the places users touch, it is.

Behind the app: a secure API layer on Gleyon infrastructure, crash and performance monitoring from day one, and a release train that ships updates on schedule instead of when someone remembers.

  • Native iOS (Swift) and Android (Kotlin) plus Flutter / React Native cross-platform
  • Secure backend APIs and real-time sync hosted on Gleyon infrastructure
  • App Store and Play Store submission, review handling, and ASO
  • Offline-first architecture, push notifications, and deep linking
  • Crash reporting, analytics, and performance monitoring wired in at launch
  • Post-launch release management — versioning, betas, staged rollouts
App development — mobile application mockup
// Who This Is For

Built for Teams Where the App Is the Product

Founders going mobile-first

Your product lives in users' pockets from day one — you need a store-ready v1 that impresses investors and survives real traffic.

Businesses extending a web platform

Your customers keep asking for a native app — you need one that shares your backend without forking your roadmap.

Teams rescuing a legacy app

Reviews cite crashes, updates take months, and the original developers are long gone. We stabilize first, then modernize.

Enterprises with internal apps

Field service, logistics, and ops teams need offline-capable tools with MDM distribution and enterprise security baked in.

// Capabilities

From Prototype to Featured Listing

Talk to an Architect
01

Native iOS Development

Swift and SwiftUI apps tuned for the latest devices — widgets, App Clips, and platform-correct UX.

02

Native Android Development

Kotlin and Jetpack Compose builds that respect Android patterns across thousands of device profiles.

03

Cross-Platform Apps

Flutter and React Native for one codebase across both stores — 40% faster to market without feeling generic.

04

Backend & APIs

Scalable API layers, authentication, and real-time features hosted and monitored on Gleyon infrastructure.

05

Store Launch & ASO

Submission, review negotiation, store listing optimization, and staged rollouts that de-risk day one.

06

App Ops & Maintenance

Crash triage, OS-update readiness, dependency upgrades, and a release train that never stalls.

// How We Work

A Process You Can Set Your Watch To

Four stages, weekly demos, zero surprises. You always know what shipped, what's next, and what it costs.

01

Define

User journeys, feature scope, and platform strategy — native, cross-platform, or hybrid — fixed in a brief you approve.

02

Design & Prototype

Clickable prototypes tested with real users before engineering starts, so the expensive part builds the right thing.

03

Build & Test

Two-week sprints with TestFlight / internal-track builds in your hands every Friday. Automated tests on every merge.

04

Launch & Iterate

Store submission, staged rollout, live crash monitoring — then a data-driven roadmap for versions 1.1 and beyond.

// Engagement Models

Three Ways to Work With Us

Fixed-Scope Project

Scoped & Shipped

A defined app, delivered against a written spec, timeline, and budget. Fixed quote in 48 hours.

  • Written scope, milestones, and acceptance criteria
  • Fixed price locked before kickoff — no hourly meter
  • TestFlight / Play beta in your hands every Friday
  • App Store and Play Store submission handled end to end
  • 30-day post-launch defect warranty
Get a Fixed Quote
Retainer & Support

Keep It Shipping

Ongoing releases, crash triage, and guaranteed response times for apps we (or others) built.

  • Guaranteed response SLAs, 24/7 incident cover
  • OS-update compatibility maintained on every iOS / Android release
  • Store compliance, certificate, and policy upkeep
  • Monthly release train with prioritized backlog
  • Cancel anytime with 30 days' notice
Start a Retainer
// Why Gleyon

The Difference, Line by Line

What mattersWith GleyonTypical agency
CodebaseTyped, tested, and documented from commit oneUndocumented handoff you can't maintain
ReleasesWeekly TestFlight / Play builds in your handsBig-bang reveal at the very end
Crash & analytics monitoringWired in from day one, watched 24/7An afterthought, if it exists at all
PricingFixed quote in 48 hours, no surprisesHourly meter that keeps running
After launchOS updates & store compliance maintainedNew invoice for every fix
Who builds itSenior engineers you can talk toOutsourced juniors after the sales call
Our members actually use the app Gleyon built — bookings, workouts, payments, all of it, without a single crash complaint since launch. Releases land every Friday like clockwork. It felt like having an in-house team, minus the hiring.
Muscle Matrix — Founder
// FAQ

App Development Questions, Answered

Should I build native or cross-platform?
It depends on the app. Content, commerce, and workflow apps usually thrive on Flutter or React Native at roughly 60% of dual-native cost. Apps leaning on heavy graphics, AR, or deep hardware access often justify native. We recommend in writing — with reasons — before you commit.
Do you handle App Store and Play Store submission?
Yes, end to end: certificates, listings, screenshots, review notes, and rejection handling. We've shipped through hundreds of reviews and know what triggers Apple's and Google's flags before submission.
What happens after the app launches?
Launch is the midpoint, not the finish. We monitor crashes and performance in real time, keep the app compatible with every OS release, and run a monthly release train for fixes and features — covered by an SLA, not goodwill.
What drives the cost and timeline of an app?
Three things: feature depth (offline sync, payments, and real-time features cost more than content screens), platform strategy (cross-platform trims roughly 40% versus dual native), and backend complexity. Our median first release lands in 8 weeks, and your 48-hour proposal itemizes exactly where the budget goes.
Who owns the code, and can my team take over later?
You own everything — source code, store accounts, signing certificates, and infrastructure credentials. The codebase is typed, tested, and documented, so an in-house team can take over cleanly at any point, with a handover sprint from us if you want one.
Free 30-Minute Architecture Review

Have an App Idea That Deserves to Ship?

Tell us the problem your app solves. We'll return a platform recommendation, timeline, and fixed price within 48 hours — and a working prototype not long after.