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Mobile products, engineered to ship.

S.ERENDER DOO is a mobile app development studio. We design, build and launch iOS and Android products — from first prototype to App Store and Google Play.

We build mobile, end‑to‑end.

Full‑cycle iOS & Android development — strategy, design, engineering, release and growth.

01

iOS Development

Native Swift & SwiftUI apps. Deep integration with StoreKit, push, widgets, Live Activities, App Clips.

  • Swift · SwiftUI · UIKit
  • StoreKit 2 · Subscriptions
  • App Store submission & review
02

Android Development

Kotlin and Jetpack Compose. Material 3, Google Play Billing, edge‑to‑edge experiences.

  • Kotlin · Jetpack Compose
  • Play Billing · In‑app purchases
  • Play Store submission
03

Cross‑platform

One codebase, two stores. React Native and Flutter when shipping fast on both platforms matters most.

  • React Native · Flutter
  • Shared business logic
  • Native modules when needed
04

Analytics & Monetization

Attribution, subscriptions, paywalls and growth instrumentation that actually informs decisions.

  • AppsFlyer · Adapty · Firebase
  • Paywall A/B testing
  • RevenueCat / StoreKit / Play Billing
05

Backend & API

Node.js, PHP/Laravel and Go services with clean APIs, auth, webhooks and proper observability.

  • Node.js · Laravel · Go
  • REST & webhooks
  • Hosted on Hetzner / AWS / GCP
06

Discovery & Strategy

Product framing, scope, architecture and a release plan before the first line of code is written.

  • Product & scope discovery
  • Architecture & estimates
  • Release planning

A short, sharp pipeline.

No theater. Four phases, weekly demos, a real build at the end of each.

  1. 01

    Discovery

    Goals, users, scope. We map the product, pin down the MVP and write a real estimate.

  2. 02

    Design

    System‑first UI, native patterns for iOS and Android, components that scale with the product.

  3. 03

    Development

    Weekly builds, TestFlight and Internal Testing tracks, code review, automated checks.

  4. 04

    Launch & Growth

    Store submission, monitoring, attribution, paywall iteration — the part that turns a build into a business.

Modern, boring, reliable.

Production‑proven tools. No hype‑driven choices.

Let’s build something.

Tell us about your product. We reply within one business day.

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S.ERENDER DOO
Trg Sunca broj 2
Budva, Budva 85310
Montenegro
42.2911°N · 18.8403°E