Mobile app development iOS and Android for your business — cross-platform, with backend included, ready for App Store and Google Play
You need a mobile app for your customers (parcel tracking, bookings, orders), for your field team (drivers, installers, agents), or for a new product you want to launch in App Store and Google Play. I build cross-platform mobile apps on React Native (single codebase for iOS and Android), with backend included (database, API, authentication), push notifications, offline mode and store publishing — all from one person, accelerated by Claude Code, delivered in 3-5 weeks standard, from 7,000 RON. The most concrete result: colet.app — ecosystem with 3 apps (web admin panel with 9 screens, driver app with 3 screens, customer app with 1 screen) processing 1000+ orders weekly on Romania-UK routes.
The real problem: the app development market is split between cheap freelancers and agencies asking 50,000+ EUR for a simple app
Put yourself in the shoes of an entrepreneur deciding they need a mobile app. They start searching, asking, comparing. On Fiverr and OLX they find people charging 1,000-3,000 EUR who promise 'iOS and Android app' — in reality either copying a template without asking what you need, or disappearing halfway through, or delivering something that doesn't pass Apple or Google review. At the other extreme are big agencies asking 30,000-100,000 EUR for a courier management or customer app — and they're right that complex apps cost, but their margin is huge because they pay 4-8 people with Pipera offices.
Then comes the technology confusion. One says you need native apps (Swift for iOS, Kotlin for Android — that's two codebases, two teams, double the cost). Another recommends React Native or Flutter (single codebase for both). Another says for a simple app a PWA is enough (web app that looks like a mobile one). Reality: for 90% of small and mid-size Romanian businesses, React Native + Capacitor are the right answer — near-native performance, half the native cost, fast delivery. But agencies selling 'native iOS and Android' tell you otherwise because they can charge more.
The third trap is App Store and Google Play review. Many developers build apps that look good on simulator but don't pass Apple or Google review — rejections for missing privacy policy, unexplained features, unjustified permissions, missing account deletion flow. Then they ask another 1,000-2,000 EUR to fix 'errors discovered at submission'. With me, App Store and Google Play publishing is part of the base package, no hidden surcharges. If Apple rejects, I fix and resubmit at no extra cost.
The fourth trap is the backend. 'App' means for many just the phone interface. But 95% of real apps need a backend — database keeping user data between sessions, API communicating between app and database, account authentication, push notifications sent from an admin panel. Agencies often split the app and backend into two projects with two invoices. With me, the package from 7,000 RON includes the backend (Supabase or custom Node.js) — you don't pay twice.
The solution is simple but rarely offered directly: you need someone who understands the whole ecosystem (app + backend + store publishing + OTA updates), who builds on modern technology for optimal cost (React Native + Supabase for backend), who delivers fast (3-5 weeks standard, 6-10 weeks complex), and who hands over the source code so you're not locked to a vendor. Everything that follows on this page is about how that gets done concretely, with real proof (colet.app, Ami Tour App, RO-VA Tours), transparent pricing and a complete list of what's in the package.
What types of mobile apps I build
The list below covers the 8 main types of mobile apps I get. Almost no project is just 'customer app' or just 'driver app' — most are ecosystems with 2-3 apps connected to the same backend. For colet.app I built exactly this: 3 apps in a single codebase with shared backend.
App for your end customers (B2C)
App your customer downloads from App Store and Google Play — for bookings (clinics, salons), order tracking (transport, courier, e-commerce), quick ordering (restaurant, home delivery), loyalty card (shops). With account, authentication, push notifications on status changes. For colet.app, the customer app has a single screen showing where the parcel is in real time.
App for the field team (drivers, installers, agents)
App for your people working outside the office — drivers delivering (with Google Maps optimized routes, photo and signature confirmation), installers visiting customers (with daily list, time reporting), sales agents (with up-to-date stock and pricing). For colet.app, the driver app has 3 simple screens guiding them along a route with 25+ stops.
Full ecosystem with 2-3 connected apps (admin + field + customer)
For businesses with complete flows (courier, distribution, services with bookings, transport agencies), I build the entire ecosystem: web admin panel for dispatcher, mobile field app, mobile customer app — all connected to the same backend. For colet.app exactly this: 3 apps in a single codebase, 5 integrated order sources.
Full backend included (database, API, authentication, notifications)
All apps come with backend included in the base price — database (Supabase or PostgreSQL), API communicating between app and database, account authentication with username and password (or Apple ID, Google, SMS), push notifications sent from an admin panel, photo and file storage. You don't pay separately for the backend.
Native phone features (camera, GPS, payments, scanning)
Camera (for AWB code scanning, delivery photos, document upload), GPS (for real-time driver tracking, delivery location validation), barcode scanner, Apple Pay and Google Pay payments, digital signature on delivery, push notifications, offline mode with automatic sync when internet returns. Everything the phone can do, your app can too.
App Store and Google Play publishing (included)
I handle the entire publishing process: material preparation (screenshots, description, icons in all sizes), Apple and Google policy compliance, submission and review responses (Apple usually 24-48h, Google 7-14 days), final publishing. If review rejects on first try, I fix and resubmit at no extra cost. Apple Developer account (99 USD/year) and Google Play (25 USD one-time) are on your business.
OTA updates (over the air, no new download)
For minor changes (text on a page, button repositioned, minor bug), the app updates automatically on next launch without users downloading from store again. That means I can deliver adjustments in minutes, not days. For major changes (new features, design overhauls), new store publishing with Apple and Google review is required.
Offline mode with automatic sync
The app works without internet — data entered in the field (confirmed deliveries, new orders, photos, signatures) is kept locally on the phone and syncs automatically with the backend when connection returns. Critical for drivers entering low-signal areas, for apps used inside buildings or rural areas, for high-traffic events where Wi-Fi is congested.
Bonus on demand: Integration with external software via API (management software, accounting, courier services), AI agent for in-app chat (see /ai-development), responsive web version (PWA) as an App Store alternative, multi-tenancy for businesses with multiple branches or franchises, real-time usage analytics and reports.
Transparent pricing, no hidden submission costs
Payment is simple: 50% on confirmation, 50% on delivery. Bank transfer, legal invoice. All packages include iOS plus Android app from a single codebase, backend included (database, API, authentication), App Store and Google Play publishing, 30 days of free support. Maintenance is optional, cancellable anytime with no penalties.
Why me, not a Fiverr freelancer or an app agency
There are people on Fiverr promising iOS and Android app for 1,000 EUR who disappear halfway. There are agencies asking 30,000-100,000 EUR for what I build with a quarter of the budget. Here's what you get working with me instead.
I've already delivered 5+ real mobile apps in production
colet.app (ecosystem with 3 apps, 1000+ orders/week, integrated WhatsApp AI agent), Ami Tour App (RO-UK courier on React Native with digital requests and AWB tracking), RO-VA Tours (multi-platform iOS plus Android plus PWA for parcel and refrigerated transport). Plus other delivered apps. I can run a live demo of any. I don't invent references.
React Native plus Capacitor — one codebase, two platforms
I build on React Native (used by Facebook, Instagram, Discord, Coinbase) or Capacitor for cases where the existing site can become a mobile app with minimal changes. That means: single codebase for iOS and Android (half the native cost), same performance quality as native apps for 95% of cases, 50% faster delivery. Plus, the code is portable — if in 2 years you want another developer or in-house team, you don't redo from scratch.
Solo plus AI — no agency overhead
I work alone, accelerated by Claude Code. That means direct communication with whoever's building, fast delivery (3-5 weeks standard vs 4-6 months at agency), pricing 30-60% lower. For a small or mid-size company wanting a real mobile app, that means the difference between 'doable in 2026' and 'leave for another time when we have budget'.
Source code handed over plus publishing included
At the end you get the full source code (GitHub repository), access to Supabase or Node.js backend (stays on your business), App Store Connect and Google Play Console accounts (on your business), technical documentation for developers. The app belongs to your business, not me. If in 2 years you want to continue with someone else or in-house team, you can, without redoing anything.
Real case: colet.app — 3 apps in an ecosystem with 1000+ orders/week
The most concrete example for a complex mobile app project is colet.app — the complete courier management software for Romania-UK routes. The ecosystem has 3 interfaces (all built on React Native plus Next.js) in a single codebase, with shared backend on Supabase. Public project, demonstrable with permission from user companies.
RO-UK courier companies worked on Excel, WhatsApp and phone. Orders were noted in tables, drivers received addresses in the morning via WhatsApp, no tracking for end customers, dispatchers lost daily hours just on manual sorting. Off-the-shelf solutions were either too generic (expensive international logistics software not covering RO-UK specifics) or impossible to adapt.
Complete ecosystem with 3 apps in a single React Native plus Next.js codebase: web admin panel with 9 screens (orders, dispatch, drivers, clients, financial, reports), mobile driver app with 3 screens (daily route, parcel statuses, settlement) with Google Maps optimized routes for 25+ stops, mobile customer app with 1 screen (real-time parcel status tracking with branded link per company). Shared backend on Supabase (PostgreSQL), REST API, authentication, automatic push notifications on every status change. Plus integration with Claude Haiku WhatsApp AI agent — fifth input channel for orders.
1000+ orders processed weekly on the ecosystem, calls significantly reduced (customers track status themselves), lost orders close to zero. The system is scalable for new companies — new company setup in under 30 minutes. The apps run on iOS and Android with the same experience quality. I can run a live demo with permission from user companies — see the 3 apps working together.
How I work — the process from first conversation to launch
The process is clear and predictable. Here's how a typical mobile app project unfolds, from first call to the moment the app is public on App Store and Google Play.
Discovery call (60-90 minutes, free)
On Google Meet or in person. You tell me what your business does, who the app users are (end customers, field team, both), what key features you need, what processes you solve with the app. I ask specific questions to understand if an app is the right answer (sometimes a responsive site or a PWA is enough — I tell you straight).
Analysis and written quote (3-5 working days)
After the call I take 3-5 days to think through the structure: what screens, what user roles, what backend, what native integrations. You get a written quote with: screen list, main flows, clear development stages, firm pricing per stage, total timeline. Plus mockups for the 3-4 main screens so you see the visual direction.
Confirmation and 50% deposit — start in 24-48h
If the quote is ok, we sign a simple contract (1-2 pages), you pay 50% deposit, I start effectively in 24-48h. Repository setup, Supabase infrastructure, first mockup visible on phone (you can run on simulator or Expo Go) in the first week.
Iterative development with weekly testing on real phone
I build in 1-2 week stages with testing at the end of each stage directly on your phone (via Expo Go or TestFlight for iOS, Internal Testing for Android). You see how it works on real device, give feedback, we adjust together. By month 1 you're already comfortable with how it looks.
Store publishing, source code handover and support
App Store and Google Play material preparation (screenshots, icons, descriptions, privacy policy), submission, review responses (usually 24-48h Apple, 7-14 days Google), publishing. Remaining 50% paid on delivery. Source code, access, documentation handover. 30 days of free post-launch support for adjustments.
Frequently asked questions
How much does a mobile app for my business cost?
Standard app with 5-10 screens, backend included, App Store plus Google Play publishing: from 7,000 RON. Complex app with multiple integrations, advanced native features (camera, GPS, scanning, payments): price set after requirements analysis, larger. Full ecosystem with 2-3 connected apps (colet.app type): largest pricing category, staged payment. Apple Developer account (99 USD/year) and Google Play (25 USD one-time) are on your business.
How long does development take?
Standard app: 3-5 weeks from confirmation. Complex app with custom backend and multiple integrations: 6-10 weeks. Full ecosystem with 2-3 connected apps: 8-16 weeks. We start within 24-48h after I receive the deposit. Every 1-2 weeks you test a working version on your phone, not just on simulator.
Do you build native iOS and Android or cross-platform?
Cross-platform on React Native or Capacitor — single codebase for iOS and Android. That means half the cost vs native apps (Swift and Kotlin separately), same performance quality for 95% of cases, 50% faster delivery. For the 5% where pure native is required (3D games, sophisticated AR, maximum performance), I refer you elsewhere — I don't sell what I can't do well.
Do you build the backend too or just the app?
Yes, backend is included in the base package. I use Supabase (PostgreSQL plus authentication plus storage) or custom Node.js — we choose at requirements analysis based on complexity. The backend includes database, REST API, authentication with username and password (or Apple ID, Google, SMS), push notifications, photo and file storage. You don't pay separately.
What happens if Apple or Google rejects the app at review?
I fix it. App Store plus Google Play publishing is part of the base package — if review rejects on first attempt (privacy policy, unjustified permission, account deletion flow, other requirements), I make adjustments and resubmit at no extra cost. Apple usually 24-48h, Google 7-14 days for review.
Can I see real apps before deciding?
Yes. I can run a live demo of colet.app (with permission from user companies) — see the 3 apps (web admin panel, driver app, customer app) and how they work together. Plus direct links to other apps on the /portofoliu page. Not edited screenshots, real apps running daily. The demo discussion is part of the initial 60-90 minutes, free.
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Let's talk — initial conversation is free
Tell me what business you have, who the app users are and what key features you need. In 60-90 minutes I can tell you straight if a mobile app is the right answer, what a concrete solution would look like, with what budget and timeline. No obligations, no aggressive follow-up.