Skip to content
IOS & ANDROID PRODUCT ENGINEERING

Mobile Apps Built for Your Business, Customers, and Growth

We design and develop high-quality mobile applications for startups and businesses, helping you turn ideas, services, and complex business processes into intuitive experiences for iOS and Android users.

No technical knowledge required • 100% Code & IP Ownership • Direct Founder Support
iOS & Android Ready
App Store Approval
Fixed Milestone Price
30-Day Bug Warranty
STRATEGIC ADVANTAGE

Your Customers Are Already on Their Phones

Over 70% of digital traffic now happens on mobile devices. But having a responsive website is often just the baseline. A dedicated mobile application transforms occasional visitors into deeply engaged, loyal daily users.

Repeated & Daily Customer Interactions

If users log in, book, order, or check status multiple times a week, a mobile app eliminates browser friction and makes interaction instant.

Direct Re-engagement via Push Notifications

Unlike marketing emails that get buried in spam folders, native push notifications reach your customers directly on their lock screen with up to 7x higher open rates.

1-Tap Persistent Authentication

Users stay securely logged in via FaceID or biometric fingerprint. No typing passwords or re-authenticating across mobile web tabs.

Native Device Hardware Capabilities

Tap into GPS location tracking, camera scanning, accelerometer, bluetooth, and contacts for experiences mobile browsers cannot replicate.

Offline Access & Local Data Caching

Allow customers or field employees to access critical data, catalogs, forms, and saved content even when cell signals drop or go offline.

Permanent Real Estate on the Home Screen

Your brand icon sits prominently on their personal device every single day, reinforcing brand loyalty and top-of-mind recall.

HONEST ADVISORY FROM DAY ONE

A Mobile App Is Not Necessary for Every Business

If your visitors only make a one-off purchase once a year, a high-converting responsive website is often the most cost-efficient choice. We never push an app if it doesn't generate positive ROI for your specific business model. We evaluate your user journeys honestly before recommending an investment.

SELF-QUALIFICATION FRAMEWORK

Do You Actually Need a Mobile App?

Building a mobile app is an investment of time and capital. Select the statements below that match your current business situation to see whether a mobile app is the right next step.

Assessment Verdict3 / 7 Match

A Mobile App Is Highly Recommended

Your requirements benefit heavily from persistent mobile presence, push messaging, and on-the-go user habits. A native or cross-platform application will significantly boost customer lifetime value and retention compared to a standard mobile website.

Not sure? During our free 30-minute discovery call, our engineers review your exact user journeys and provide an unbiased recommendation.

PRODUCTION EXPERTISE

Mobile Applications We Build

We do not categorize apps by programming frameworks. We organize by real-world business models, user behaviors, and revenue channels. Explore what fits your vision:

Startup & SaaS Applications

Turn your digital product concept into a market-ready mobile reality

We help startup founders build clean, scalable MVPs designed to validate user demand, attract early adopters, and secure investor confidence with smooth onboarding and high day-30 retention.

Ideal For

Tech founders, venture-backed startups, software entrepreneurs

Key Product Capabilities
Frictionless user onboarding & social login
Subscription monetization (In-App Purchases)
Real-time cloud database synchronization
Event analytics & behavioral tracking
Have a different concept in mind? Custom architectures are welcomed.Plan Your App Architecture
CAPABILITY MATRIX

Features Designed Around Your Users

You don't need to know technical specifications to imagine what your app can do. Explore possible capabilities across 5 core dimensions, all engineered for seamless performance.

User Experience: Frictionless interfaces that keep users engaged and coming back daily.

Biometric & Social Onboarding

+40% Signup Completion

1-tap sign-in with Apple, Google, or phone OTP without password friction.

Production-tested module

Personalized Content & Feeds

Higher Day-30 Retention

Dynamic interfaces tailored to user browsing history, purchase preferences, and role.

Production-tested module

Faceted Search & Smart Filters

<100ms Instant Results

Instant, typo-tolerant search across products, services, and locations.

Production-tested module

Saved Items & Favorites

Drives Repeat Conversions

Offline-capable wishlists and bookmarking for quick return visits.

Production-tested module

Adaptive Dark Mode

Reduced Battery Usage

Seamless automatic switching based on system theme preferences.

Production-tested module

Not every app needs every feature. We help you select only the high-leverage capabilities that directly drive revenue and customer satisfaction.

Request a Custom Feature Audit
STRATEGIC REACH

Which Platforms Should Your App Support?

One of the first questions founders ask is whether to target Apple iPhones, Android devices, or both. Here is how each option stacks up from a business and audience standpoint:

Android

70%+ Global Share

Ideal when reaching broad consumer markets, emerging economies, and diverse hardware price points.

  • Dominant market share across Asia, LATAM & Europe
  • Fast Google Play review turnaround times
  • Massive reach for logistics, gig-economy & retail
Best for: Massive reach & consumer volume

iOS (Apple iPhone)

High Monetization

Critical for premium services, North American / UK audiences, and apps with recurring in-app subscription monetization.

  • Significantly higher in-app purchase willingness
  • Consistent hardware & screen size specifications
  • Dominant demographic in corporate & executive niches
Best for: High ARPU & premium consumer segments
RECOMMENDED

Both (iOS + Android)

100% Market Access

Launch across both App Store and Google Play simultaneously with a single shared codebase, reaching every potential customer.

  • Zero customer exclusion on marketing campaigns
  • Up to 40% cost savings via React Native cross-platform
  • Unified feature releases and synchronized updates
Best for: Complete audience capture & commercial scale

You do not have to decide this alone. During our initial discovery session, we review your target customers' demographics, location, and device preferences to recommend the exact platform rollout plan that optimizes your budget.

ENGINEERING APPROACH

One App, Multiple Platforms

There are two main engineering paths to building mobile apps. We explain the trade-offs in plain business terms so you can make an informed decision for your company.

CHOSEN BY 90% OF CLIENTS

Cross-Platform Development

Powered by React Native & Expo

We write one unified, high-performance application codebase that compiles directly into true native UI components on both Apple iOS and Google Android.

35-40% Faster Launch

Build once and ship simultaneously to both major app stores.

Lower Total Cost

One development team instead of hiring two separate specialist teams.

Synchronized Updates

New features and bug fixes release to all users at the same time.

True Native 60 FPS

Indistinguishable from native Swift/Kotlin for business apps.

Ideal for: Startups, SaaS products, marketplaces, e-commerce, and business operations.

Pure Native Development

Swift (iOS) & Kotlin (Android)

Two completely independent applications are coded from scratch using Apple's and Google's proprietary platform languages.

When Native Makes Sense:

  • Heavy 3D gaming or real-time physics rendering engines
  • Direct low-level Bluetooth peripheral firmware drivers
  • Specialized on-device machine learning & audio DSP

Trade-off Consideration:

Requires maintaining two separate codebases, nearly doubling development time and ongoing developer retainers.

Ideal for: AAA games, specialized medical hardware, or deep OS utilities.

Pragmatic Technology Selection: We never force an architectural approach. If your app genuinely demands custom native Swift or Kotlin modules, we integrate them cleanly alongside our core architecture.

TRANSPARENT EXECUTION

How We Build Your Mobile Application

From first concept to App Store downloads, we follow a transparent 7-step process. You always know what is being built, when to expect it, and how it impacts your business.

Step 1 of 7• Week 1

Understand Your Idea

Uncovering your business goals, target audience, and problem space

Engineering & Product Actions
In-depth 1-on-1 discovery workshop to unpack your app vision
Competitor and market ecosystem analysis
Clarify user personas, monetization paths, and business bottlenecks
Establish success metrics and target launch timelines
Tangible Deliverable

Product Discovery Brief & High-Level Scope Blueprint

Your Role in This Step

Share your business vision, customer feedback, and ideas—no technical prep required.

ZERO FRICTION KICKOFF

You Don't Need a Complete Technical Plan to Start

The biggest misconception non-technical founders have is thinking they need a 40-page software specification before contacting an agency. You don't.

Where You Are Today

Bring Any Starting Point

We meet you at whatever stage your concept is in.

A Rough App Idea

A concept you thought of or a service you wish existed on your phone.

A Business Problem

An operational bottleneck, high customer churn, or manual paper process.

Napkin Sketches & Notes

Rough drawings, bullet points in your phone's notepad, or voice memos.

An Existing Website

A working web platform or store that needs a dedicated mobile app experience.

Planex DiscoveryCollaborative Translation
What We Deliver

A Structured Product Blueprint

Everything needed to build with confidence and predictability.

Target User Validation

Pinpoint who your primary users are, their daily mobile habits, and what problems your app solves for them.

Streamlined User Journeys

We design every tap from splash screen to checkout, eliminating unnecessary steps and friction.

Prioritized MVP Roadmap

Distinguish between high-leverage launch features and secondary ideas to save capital and speed up launch.

Technical Architecture Blueprint

We establish the exact database, APIs, cloud hosting, and security models required for stability.

Strict Mutual NDA signed before initial discovery calls. Your proprietary ideas remain 100% yours.
Share Your App Concept
STARTUP & VALIDATION STRATEGY

Start Small. Validate Early. Grow with Confidence.

The number one mistake first-time founders make is trying to build a "complete" app with 50 features before launch. An MVP (Minimum Viable Product) gets your core solution into real users' hands in weeks, not months.

THE RISKY TRADITIONAL APPROACH

Building Everything Upfront

Spending 6-9 months and $50k+ developing dozens of speculative features before a single real customer has downloaded the app.

Time to Market6 to 12 Months
Capital At RiskHigh (All-in upfront)
Feedback DelayMonths of delay
Pivot FlexibilityCostly & Difficult
Result: Burned runway and features nobody actually uses.
SMART FOUNDER STRATEGY
THE LEAN MVP METHOD

Core Value Validation First

We isolate your app's single most valuable core feature, engineer it to perfection, and launch on App Stores within 4 to 6 weeks.

Time to Market4 to 6 Weeks
Capital RequiredPreserves Runway
Real FeedbackLive User Data
Feature AdditionsFunded by Revenue
Launch fast. Learn early. Scale with data.Scope Your MVP
USER EXPERIENCE MASTERY

A Great App Is More Than Good Code

Users don't evaluate your app by reading the database architecture. They judge it by how effortless, intuitive, and enjoyable it feels in their hands. We obsess over every pixel and interaction.

Experience Transformation
The Planex 2-Tap Native Experience

Large thumb-friendly cards, saved customer profiles, 1-tap biometric Apple Pay/bKash authorization, and instant haptic confirmation.

1Select Service / ItemThumb Reach
2Double-Tap FaceID CheckoutDone in 2.1s
Conversion Lift:+44% Orders

Thumb-Zone Ergonomics

Placing high-frequency navigation and action buttons within natural thumb reach, avoiding awkward top-corner stretches.

Instant Micro-Feedback

Subtle tactile haptic feedback and smooth state animations that reassure users their tap was registered instantly.

Zero-Cognitive Friction

Progressive disclosure: presenting only what users need at that exact moment rather than cluttering screens with 20 options.

High-Contrast Legibility

WCAG-compliant typography and adaptive contrast designed for sunlight legibility and nighttime eye comfort.

FULL-STACK ARCHITECTURE

Your Mobile App Is Part of a Larger System

An app on a phone is only the client interface. Behind every seamless tap is a coordinated backend engine that syncs orders, processes payments, protects user data, and gives your staff an administrative command center.

Mobile Client App

Installed on iPhones & Android devices. Handles offline storage, camera scanning, biometric login, and 60fps user interactions.

React Native / Expo / iOS / Android

Secure Core API

High Speed

Processes business logic, orchestrates user authentication, verifies transactions, and coordinates real-time data sync.

Node.js / Express / REST / GraphQL

Staff Admin Portal

A secure desktop web portal for your internal team to manage customer accounts, dispatch bookings, review orders, and trigger broadcasts.

Next.js Web Command Center

Relational Data

PostgreSQL & Redis Caching

Push Notifications

Firebase FCM & Apple APNs

Payment Gateways

Stripe, bKash & In-App Pay

Cloud Infrastructure

AWS Auto-Scale & Cloudflare

PRODUCTION RESILIENCE

Built for Real Users and Real Growth

An app that crashes or lags loses users permanently. We engineer every application to the highest standards of speed, data encryption, and high-concurrency uptime.

Bank-Grade Data Security

Protecting user data and business reputation

  • Encrypted data storage on device (iOS Keychain & Android Keystore)
  • End-to-end SSL/TLS 1.3 transport encryption with certificate pinning
  • Biometric authorization (FaceID/Fingerprint) for sensitive actions
  • Strict compliance with Apple and Google data privacy safety mandates

Fluid 60 FPS Performance

Instant responsiveness with zero stutter

  • Native thread execution for butter-smooth screen transitions
  • Sub-second API response caching via in-memory Redis layers
  • Optimized image delivery with WebP asset compression
  • Zero battery drain optimization through intelligent background polling

Elastic Cloud Scalability

Effortlessly handle traffic spikes and growth

  • Stateless API microservices that scale horizontally on demand
  • Automated load balancing across AWS cloud infrastructure
  • High-throughput PostgreSQL database read-replicas
  • Seamless support from 50 initial beta users to 500,000+ daily sessions

Real-Time System Reliability

Continuous monitoring to catch issues before users do

  • Automated crash telemetry and exception alerting via Sentry
  • 99.95% server uptime guarantee with redundant cloud failovers
  • Offline network resilience with automatic queue retry
  • Rigorous unit and end-to-end integration test suites
APP STORE DEPLOYMENT

We Help You Get Your App to Users

Getting an app published to the Apple App Store and Google Play involves strict guidelines, cryptographic certificates, and privacy compliance. We handle the entire deployment pipeline for you.

Apple Developer & Google Console Setup

We guide you step-by-step in creating your official developer accounts so your business retains 100% legal ownership of your listings.

App Store Visuals & Screenshots

We design high-converting, professional device screenshots formatted precisely for all required iPhone, iPad, and Android display resolutions.

Compliance & Privacy Questionnaires

We configure Apple Privacy Nutrition Labels and Google Data Safety forms to comply with GDPR and international data transparency laws.

Build Submission & Review Management

We compile production release binaries, configure signing certificates, submit for official review, and actively manage communications with Apple and Google reviewers.

Transparent Review Policy: While no agency can legitimately guarantee unconditional approval (as final decisions rest with Apple and Google policy teams), we strictly build according to official Human Interface and Developer Guidelines, and we work directly with reviewers to resolve any questions during review.

LONG-TERM PARTNERSHIP

Launching Is Only the Beginning

We do not hand over code and vanish. A successful digital product evolves as real users adopt it. We provide reliable ongoing support so you never worry about maintenance.

Included in Every Project

30-Day Free Bug Warranty

Every project includes 30 days of free bug warranty. If any unexpected edge-case or defect appears after launch, our engineers fix it immediately at zero cost.

Dedicated engineering contact
iOS & Android Releases

Annual Major OS Upgrades

Apple and Google release major OS updates every autumn. We test and adapt your app to guarantee continued compatibility with new screen sizes, permissions, and APIs.

Dedicated engineering contact
24/7 Reliability

Infrastructure & Security Updates

Continuous monitoring of server uptime, database backups, SSL certificates, security patches, and third-party API deprecations.

Dedicated engineering contact
Growth & Iteration

Continuous Feature Sprints

As your user base grows and requests new capabilities, we can provide dedicated monthly development sprints to continuously evolve your product.

Dedicated engineering contact
TECHNOLOGY FOUNDATION

Modern Technology. Chosen for Your Product.

We never select frameworks based on hype or trends. Every tool in our stack is chosen because it optimizes your time to market, guarantees stability, and minimizes long-term operational costs.

Mobile Client Tier

React Native

Cross-platform native execution

Expo SDK

Rapid mobile build & OTA update pipeline

Swift / Kotlin

Specialized native modules when required

TypeScript

Strict compile-time type safety

Backend & Core APIs

Node.js & Express

High-throughput asynchronous API runtime

Next.js

Internal web admin command dashboards

REST & GraphQL

Lightweight payload serialization

WebSockets

Bi-directional real-time communication

Data & Caching Layer

PostgreSQL

ACID-compliant relational database

Redis

In-memory caching & sub-millisecond sessions

Prisma ORM

Type-safe database migrations

SQLite / WatermelonDB

Local on-device offline storage

Cloud & Third-Party APIs

AWS & Cloudflare

Global edge CDN & scalable container clusters

Firebase (FCM)

Push notifications & device telemetry

Stripe & bKash

Global & local mobile payment processing

Google Maps SDK

Turn-by-turn geolocation & geofencing

Zero Vendor Lock-In: We use industry-standard open-source languages and standard cloud architectures. Any competent software engineer in the world can read, maintain, and expand your codebase in the future.

AUTHENTIC RESULTS

Featured Mobile Products & Case Studies

We don't just design pretty screens; we engineer complete mobile products that solve real business problems and create lasting competitive advantages.

View all client case studies
Omnichannel Retail & Gadget Trade-In

Exchanger Mobile Suite

Customer appraisal mobile app & field technician diagnostic tool

The Challenge:

Customers had to physically visit retail branches to get gadget trade-in quotes, leading to long store queues and lost sales to online competitors.

The Solution:

Engineered a cross-platform mobile application featuring an automated in-phone diagnostic scanner (display, touchscreen, battery health), instant trade-in valuation, and home pickup booking.

Key Mobile Capabilities
Automated hardware diagnostic test suite
Instant bKash/bank account trade-in payouts
Live technician pickup tracking with GPS
Push notifications for flash price boosts

84%

Quote Completion Rate

3 mins

Average Evaluation Time

65%

Branch Footprint Saved

Exchanger Mobile Suite
Case StudyRead Analysis
EdTech & Live Mobile Examinations

Preparation Academy App

Gamified test prep with live timed exams and offline KaTeX solutions

The Challenge:

Students across rural districts faced frequent internet cutoffs during timed admission tests, resulting in lost exam submissions and student frustration.

The Solution:

Built an offline-first mobile examination app with local SQLite question caching, background answer synchronization, KaTeX mathematical typesetting, and instant rank percentiles.

Key Mobile Capabilities
Zero-dropoff offline exam answer sync
Real-time countdown timer with negative marking
In-app push reminders for upcoming mock exams
Personalized weakness analytics & daily streaks

99.8%

Exam Completion Under Slow 3G

10k+

Daily Active Students

4.9 / 5

App Store User Rating

Preparation Academy App
Case StudyRead Analysis
On-Demand Delivery & 64-District Logistics

SwiftFleet Driver & Customer App

Dual-app ecosystem connecting consignees with parcel couriers

The Challenge:

Drivers relied on paper run-sheets and manual phone calls to confirm delivery addresses, leading to missed delivery windows and high return rates.

The Solution:

Developed a synchronized two-sided mobile platform: a driver application with turn-by-turn routing and digital signature capture, and a customer app with live map tracking.

Key Mobile Capabilities
Live turn-by-turn GPS route optimization
Digital proof of delivery with photo and e-signature
Phone number masking between customer and driver
Automated SMS/push delivery alerts

94%

First-Attempt Delivery Rate

-72%

Dispatcher Phone Calls

-35 mins

Average Route Time

SwiftFleet Driver & Customer App
Case StudyRead Analysis
TRANSPARENT PRICING

How Much Does Mobile App Development Cost?

We do not post deceptive "starting from $499" agency gimmicks. Mobile app pricing is directly driven by scope, device integrations, and backend requirements. We operate on a 100% fixed-price milestone model so you never face surprise invoices.

Lean Validation MVP

For early-stage startups testing product-market fit

Typical Delivery Timeline:4 - 6 Weeks
Included Scope
  • Single high-leverage core product workflow
  • iOS & Android cross-platform codebase
  • Biometric authentication & user profiles
  • Core backend API & cloud database setup
  • App Store & Google Play launch support
  • 30-day post-launch bug warranty

Ideal For: Founders seeking early user traction or angel investment

Request Custom Proposal
MOST POPULAR

Full Commercial App

For established businesses launching a major mobile channel

Typical Delivery Timeline:7 - 10 Weeks
Included Scope
  • Complete multi-screen customer journeys
  • In-app payments, subscriptions & mobile wallets
  • Automated push notifications & activity feeds
  • Custom web admin dashboard for staff
  • Hardware integration (camera, GPS, biometrics)
  • Advanced analytics & crash telemetry
  • 30-day post-launch bug warranty

Ideal For: Growing businesses with active customers & recurring transactions

Request Custom Proposal

Enterprise Ecosystem

For complex multi-sided marketplaces & high-volume logistics

Typical Delivery Timeline:10 - 14+ Weeks
Included Scope
  • Multi-sided app suite (e.g. Customer + Driver + Admin)
  • Turn-by-turn live GPS tracking & routing
  • High-concurrency microservices backend
  • ERP / legacy database integrations
  • Role-based staff permissions & audit logging
  • Dedicated QA device lab testing
  • Custom enterprise SLA & support agreement

Ideal For: Enterprises, multi-branch retailers & on-demand networks

Request Custom Proposal

Fixed-Price Guarantee

Guaranteed milestone payments. No hourly runaways.

100% Code & IP Ownership

All source code, designs, and store listings belong to you.

30-Day Free Warranty

Free bug resolution post-launch for complete peace of mind.

CLEAR ANSWERS

Frequently Asked Questions

Everything business owners and startup founders want to know about building, launching, and owning a mobile application with Planex.

The investment required depends on the scope of your application—such as whether you need iOS, Android, or both, the complexity of your custom features, third-party integrations (payments, maps, SMS), and whether backend systems or admin dashboards are required. A focused validation MVP typically requires significantly less capital than a complex multi-vendor marketplace or enterprise platform. After our initial discovery discussion, we provide a fixed-price milestone proposal with a transparent breakdown, so you never encounter surprise hourly billing or hidden fees.

Have a specific question about your app concept or requirements?

Ask Our Mobile Engineers
START YOUR MOBILE JOURNEY

Have an App Idea? Let's Explore It Together.

You don't need a complete technical specification or finished product plan. Tell us about your idea, business, or the problem you want to solve. We'll help you understand what it would take to turn it into a mobile application.

No technical knowledge required
Strict mutual NDA guaranteed
Fast 24-hour proposal turnaround