Mobile app development

Mobile app development

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Mobile apps

One senior pod, every screen your business runs on.

SID Corp is a mobile app development company in Ho Chi Minh City. We design, build and run native iOS, Android and cross-platform apps for your customers, your field crews and your own back office. Scroll the phone: these are the three shapes of app we ship.

  1. 01

    Consumer apps people keep

    Commerce and content apps tuned for retention: offline-first carts, push notifications that respect the user, and cold starts under two seconds.

  2. 02

    Field apps that survive bad networks

    Our own ePOD platform runs deliveries on phones every day. GPS routing, camera proof of delivery and an offline queue that syncs the moment signal returns.

  3. 03

    Your dashboard, in your pocket

    The same APIs that power your web platform, scoped by role and locked behind biometrics. Approvals and live numbers without opening a laptop.

sidcorp · app stage Live screens

We pick the platform for your roadmap, not our resume.

Four honest ways to build a mobile app, and the moment each one actually wins. The trade-off goes in your quote, in writing.

Native iOS

SwiftUI-first builds with full platform access: widgets, Live Activities, HealthKit, the lot.

  • SwiftUI + Swift concurrency
  • XCTest UI suites
  • TestFlight beta loops
PICK THIS WHENYour audience is iPhone-heavy and the UX is the product.
Native iOS app screen Swift

Native Android

Jetpack Compose apps tuned for the device zoo, from this year's flagship to the $120 field handset.

  • Jetpack Compose
  • Play app bundles & integrity
  • Espresso test rigs
PICK THIS WHENYou ship to field crews or markets where Android owns the share.
Native Android app screen Kotlin

React Native

One TypeScript codebase, two stores, sharing logic with the web platform we may already run for you.

  • Code shared with your web app
  • Over-the-air JS updates
  • Native modules where it counts
PICK THIS WHENYou want web, iOS and Android moving in one sprint cadence.
React Native app screen TypeScript

Flutter

Pixel-identical UI on both platforms from one Dart codebase. The fastest route to a polished MVP.

  • One renderer, both stores
  • First-class animation
  • 60 fps on mid-range devices
PICK THIS WHENBrand-heavy UI and a deadline measured in weeks.
Flutter app screen Dart

From green build to both stores, without a human bottleneck.

Store releases are where mobile projects usually stall. Ours ride the same automated line that ships our own apps.

Mobile development workspace with code on screen
  1. CI ~8 min

    Build

    Signed iOS & Android builds on every merge. Nobody builds on a laptop.

  2. Same day

    Internal beta

    TestFlight and Play internal tracks land on your team's real phones.

  3. ~24 h

    Store review

    Submissions pre-flighted against review guidelines, so rejections are the exception.

  4. 1-7 days

    Phased release

    Staged rollout behind kill-switch flags: 10% of users before 100%.

  5. 24/7

    Monitor

    Crash, ANR and cold-start dashboards with alerting from day one.

Typical timeline for a store release

What you get

Every app ships the same way.

What lands in your hands when we ship a mobile app — built to outlive the engagement.

01

App builds, both stores

Signed iOS and Android builds, submitted under your own Apple and Google developer accounts.

  • iOS + Android
  • Your accounts
  • Store submission
02

CI/CD release line

Every merge produces a build; releases roll out in stages behind kill-switch flags.

  • Build on merge
  • Phased rollout
  • Kill-switch flags
03

Crash & performance monitoring

Crash, ANR and cold-start dashboards with alerting wired up from day one.

  • Crash reporting
  • Cold-start budget
  • Alerting
04

Source & handover

Full source in your repository, plus runbooks so an in-house team can take over cleanly.

  • Full source
  • Runbooks
  • 30-day onboarding

Owned by you — source code, store accounts and infrastructure.

Before you brief us

The questions every founder asks first.

Straight answers on cost, timeline and ownership. The same ones we give on the first call.

Engineer checking a smartphone at a tech studio
Ask us directly
Q1 How much does mobile app development cost?

A focused MVP typically lands between US$25k and US$60k; established products with heavy integrations run higher. You get a fixed, written quote within 48 hours of sending the brief. Milestone payments, never a blank retainer.

Q2 How long does it take to build a mobile app?

Most MVPs reach both stores in 10-14 weeks. You see working software much earlier: a TestFlight build on your own phone by week three, then a demo every Friday until launch.

Q3 Native or cross-platform: which should we choose?

If UX is the product and your audience is iPhone-heavy, go native. If speed and one codebase matter more, React Native or Flutter wins. We build all four, so the recommendation in your quote is an engineering call, not a sales pitch.

Q4 Who owns the code and the store accounts?

You do, from day one. Apps ship under your Apple Developer and Google Play accounts, the repository lives in your organization, and there is no lock-in clause to negotiate later.

Q5 What happens after launch?

Crash and performance monitoring run from day one, and a new iOS and Android version lands every year whether you plan for it or not. Most clients keep a small monthly engineering allotment; others hand over to an in-house team with our 30-day onboarding.

Start today

Send the brief.
Ship the app.

Describe the app you need in one email. A senior engineer reads it the same day and a fixed quote lands within 48 hours.

Get a 48-hour estimate Email [email protected]