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CUSTOM APP DEVELOPMENT AGENCY โ€” PAY AFTER DELIVERY

Custom App Development Agency: Android + iOS Apps, Built for Revenue.

ScaleTrio designs and builds mobile apps for US businesses โ€” subscriptions, AdMob, Play Store and App Store launch handled end-to-end. You approve a free app icon and demo before you pay a single dollar.

Android + iOS, One Build Subscriptions & AdMob Play Store + App Store Launch
$0 Upfront Payment
2 Platforms, One Build
100%Code Ownership
1 Free Icon + Demo First
Design to launch, handled

What's Included in Our App Development Service

Every package is end-to-end. You never write a line of code, never fight store review rejections, never wire up a payment SDK yourself. Here is exactly what our team delivers.

Android + iOS From One Build

One codebase, both platforms โ€” no paying twice for two native apps. Your app runs on Android and iPhone with the same features, the same design, and one price. Prefer a single platform? We build that too.

Subscriptions & In-App Payments

Monthly, yearly, or lifetime purchases wired correctly through Play Billing and Apple's StoreKit โ€” receipts verified, entitlements managed, restore-purchase working. Your app is ready to earn from day one.

AdMob Integration

Banner, interstitial, and rewarded ads placed the right way โ€” revenue without ruining the experience. Ad units, mediation setup, and policy-safe placement so your account stays in good standing with Google.

Play Store + App Store Launch

We handle the painful part: signed release builds, store listings, screenshots, descriptions, data-safety forms, privacy policy, and review submissions. Your app goes live on both stores without you touching the consoles.

UI Design That Feels Premium

Clean, modern screens designed before a line of code is written. You see and approve the look of your app early โ€” no surprises at the end, and an interface your users actually enjoy opening.

Updates & Launch Support

We don't disappear after launch. Post-launch support is included to fix anything that slips through, and future updates or new features are quoted separately โ€” no lock-in, no hostage code, ever.

Our build standard: every app ships fast, lightweight, and smooth on real devices โ€” no jank, no frozen screens, no mystery crashes. We test on small screens too, because your users don't all own flagships. Performance is part of the service, not an upsell.

Zero-risk onboarding

How Our App Development Process Works

Four steps. The first thing we build for you is free.

1

Chat

Tell us your app idea on WhatsApp or the chat box. One conversation โ€” we scope it honestly and tell you what's possible.

2

Free Icon + Demo

We design your app icon and build a working demo first โ€” free. You see and touch your app before any payment exists.

3

You Approve

Love the demo? We build the full app. Don't love it? Walk away โ€” no charge, and the icon is yours to keep.

4

50/50 Milestones

50% after you approve the demo, 50% when your app goes live on the stores. You never pay for work you haven't seen.

Pricing

App Development Pricing โ€” Pay Only After Delivery

Public pricing, no "request a quote" games. Every project starts with a free app icon and demo. You pay nothing until you've seen your app running.

📱 Launch

$1,499
one-time ยท 50/50 milestones
  • Focused single-purpose app
  • Android + iOS, one build
  • Free app icon + demo first
  • Custom UI design
  • Play Store + App Store launch
  • 100% code ownership
Start Free
MOST POPULAR

📱 Growth

$2,999
one-time ยท 50/50 milestones
  • Everything in Launch
  • Subscriptions & in-app payments
  • AdMob ad integration
  • Push notifications
  • Analytics wired in
  • Priority build queue
Start Free

📱 Scale

$4,999
one-time ยท 50/50 milestones
  • Everything in Growth
  • Multi-feature platform scope
  • Backend + data sync
  • Admin / web dashboard
  • 90 days priority support
  • Direct line to the developer
Start Free

How payment works: $0 upfront โ€” always. The first thing we build is your app icon + demo, free. You pay 50% only after you approve the demo, and the remaining 50% when your app goes live on the stores. Need something custom? Message us on WhatsApp and we'll scope it honestly.

Proof, not promises

Apps Our Team Has Built

Real apps, designed and built by us โ€” the same quality your app gets. Judge the work itself.

Glyvexz Hyperliquid Tools app

Glyvexz Hyperliquid Tools

Analytics dashboard ยท Dark-mode UI

Clean data visualization, built for speed. Store links coming soon.

Volcanic Star game app

Volcanic Star

Puzzle adventure game ยท Polished gameplay

Engaging game design with smooth performance. Store links coming soon.

Every app we ship is 100% owned by the client โ€” source code, store listings, and accounts in your name. We show you a working demo before you pay anything, because trust is earned, not claimed.

FAQ

App Development FAQ โ€” Hard Questions, Straight Answers

The things other agencies hope you won't ask.

It depends on scope โ€” a focused app typically takes 3 to 6 weeks from approved demo to store launch, while larger platforms take longer. We give you an exact timeline in writing with the free demo scope, before any payment. If an agency promises you a complex app in a week, that's a red flag, not a feature.

Yes โ€” 100%. The source code, the store listings, the developer accounts, and all revenue are in your name. You get the full codebase at delivery. There is no lock-in, no licensing trick, and no hostage code. If you ever want another developer to take over, everything is yours.

We're a lean team with no agency overhead โ€” no account managers, no sales commissions, no fancy office. One codebase serves both platforms, which cuts build cost dramatically. Lower price, not lower quality โ€” and the free app icon + demo lets you verify the quality yourself before paying anything.

Both, for one price. We build with a single codebase that compiles to native-quality Android and iOS apps, so you don't pay twice. If you only want one platform โ€” say, iPhone only for a US audience โ€” we build exactly that. The choice is yours at scoping.

Launch support is included โ€” if anything slips through, we fix it. After that, updates and new features are quoted separately and honestly; you're never forced into a monthly retainer. Your app keeps running and earning whether or not you order another thing from us.

Yes โ€” most of our clients start exactly there. You bring the idea and the problem your app solves; we turn it into screens, flows, and a working demo. During the free demo phase we help you sharpen the concept: which features matter for version one, which can wait, and how the app will earn. You don't need a specification document โ€” that's our job.

Get started

Your App Icon & Demo Are Free.

One chat is all it takes. Tell us your app idea โ€” we'll design your icon and build a working demo free, and you decide from there.

Zero upfront, ever Reply in seconds, 24/7 100% code ownership