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Ethereal Softech - We Design and Develop your Dream
React NativeFlutterSwiftKotlinKMP / CMP

Native and Cross-Platform Apps for Android and iOS

We build apps for Android and iOS: native Kotlin/Compose, native Swift, or cross-platform with React Native, Flutter, or KMP. You pick the right approach for your product. Fixed price, both stores.

Fixed-price projects from $1,500 · free quote within 48 hours

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What Our Mobile App Development Includes

Everything listed below is included in every Mobile App Development project. No add-on fees.

Native Android: Kotlin & Jetpack Compose
Native iOS: Swift & SwiftUI
Cross-platform: React Native & Flutter
Shared logic with Kotlin Multiplatform (KMP)
Compose Multiplatform (CMP) for shared UI
Offline-first architecture with push notifications
Payment gateway integration (Razorpay / Stripe)
Google Play and App Store submission

Technologies Used

React NativeFlutterSwiftKotlinJetpack ComposeKMPCMPAndroidiOSFirebase

Why Businesses Choose Us for Mobile App Development

Native or cross-platform, chosen honestly

Kotlin, Swift, Flutter, React Native: you get the approach that fits your product and budget, not whichever framework an agency happens to sell.

Both stores, handled

Signing, listings, review rejections, releases: we have shipped apps live on Google Play and the App Store, including a 100,000+ download study app.

No post-launch ghosting

Thirty days of free fixes after launch, optional maintenance after that, and the team that built your app stays reachable on WhatsApp.

ProofNewtonDesk:100,000+ Google Play downloads and a 4.3-star rating from 415 student reviews (as of July 2026)View case study

Choose Your Platform

Not sure which approach fits? Each page explains when it is the right call, with a real project we shipped on it.

Flutter App DevelopmentOne Dart codebase, both stores
React Native App DevelopmentOne JavaScript codebase, native UI
Android App DevelopmentNative Kotlin and Jetpack Compose
iOS App DevelopmentNative Swift and SwiftUI

What Happens After You Say Yes

A predictable process from first call to launch day, and beyond.

01

Free Discovery Call

No commitment

30 minutes to understand your goals, budget, and timeline. No pitch. No pressure. No commitment.

02

Fixed-Price Proposal in 48h

No surprises

Written proposal with exact scope, fixed price, tech stack, and milestone timeline. No vague estimates.

03

Design First, You Approve

You stay in control

Wireframes and mockups delivered before any code is written. Your sign-off before we build.

04

Development with Full Visibility

No black box

Fortnightly updates and a staging URL from Week 2. You watch your product being built in real time.

05

Test, Approve & Launch

Your decision

Full cross-device testing. We go live only when you say yes.

06

30-Day Free Support

Peace of mind

Any bugs or adjustments within 30 days fixed at no extra cost. Ongoing maintenance packages available.

The first call is free, no commitment needed.

Book a Free Discovery Call

Frequently Asked Questions

Our fixed-price app projects start at $1,500, and a typical build lands between $1,500 and $8,000 depending on platform and features, scoped and quoted upfront. Market hourly rates run $20 to $50 offshore and $100 to $150 in the US.
Cross-platform (Flutter or React Native) when speed to market and budget lead; native when hardware fidelity decides the outcome. We built Tooth Fairy native in Swift and Kotlin because diagnostic-grade camera quality was the product.
Yes, end to end. Our builds are live on both stores today: NewtonDesk has 100,000+ Google Play downloads, and Tooth Fairy is on the App Store. We handle submission, review, and release.
Most mobile apps take 8 to 12 weeks from design approval to launch, depending on scope. You get a detailed timeline with every proposal, and we have never missed a committed launch date.
Yes. Flutter and React Native produce a single codebase that runs natively on both, which is significantly more cost-effective than building two separate apps. Where hardware fidelity matters, we build fully native in Swift and Kotlin.
Yes. We work with clients globally. All communication happens via WhatsApp, video calls, and email. We have successfully delivered projects for businesses in multiple time zones and geography has never been a barrier.
Every project includes 30 days of free post-launch support. Any bugs, browser issues, or content corrections are fixed at no extra cost. After 30 days, we offer affordable monthly maintenance packages starting from $60/month.
Yes. We provide proper invoices in USD for international clients. Indian clients receive GST-compliant invoices. All payment methods supported including international bank transfer, PayPal, and Wise.

One team for your whole stack. Pair Mobile App Development with what comes next.

Shopify DevelopmentShopify stores and apps: from design to App Store
Web DevelopmentFast, SEO-optimised websites that generate leads
AI & ML SolutionsModels that forecast, score and classify your own data
Generative AI DevelopmentLLM apps, RAG and AI agents, with the running costs on the table
Custom SoftwareBusiness automation and custom internal tools
Python DevelopmentPython backends, automation, and data: built to last

See Mobile App Development in action

Tooth Fairy case study NewtonDesk case study CMB case study

Prefer to hire dedicated talent?

Flutter Developer React Native Developer Android Developer iOS Developer

Ready to Build Your App?

Android + iOS from one codebase. Fixed price, delivered on time.

  • Fixed price: your invoice matches your quote
  • Written proposal with scope and timeline in 48 hours
  • 30 days of free post-launch support

Prefer chat? Message us on WhatsApp →

No spam, no obligation. Quote within 48 hours.