iOS and Android app development, native or cross-platform - the right call made before you commit.
Intention InfoService is a full-service mobile app development company. We build iOS and Android apps - cross-platform with React Native or Flutter when speed and budget matter, fully native with SwiftUI or Kotlin when the product demands it, and PWAs when install-free is the right call - for startups, SMBs and enterprises across the US, UK, UAE, Europe and India. Transparent published fixed prices, most apps ship in weeks, and you own the code.
A straight native-or-cross-platform recommendation. No quote wall.
- Native + cross-platform
- Transparent fixed pricing
- You own the code
At a glance
- StacksReact Native, Flutter, SwiftUI, Kotlin
- PricingFixed & published
- TimelineWeeks, typical
- ServesUS, UK, UAE, EU & India
Apps we build for iOS and Android
From a simple single-purpose app to a full product with a real-time backend. A typical engagement covers:
Consumer & marketplace apps
Two-sided marketplaces, social and content apps with clean, fast flows.
On-demand & booking apps
Scheduling, delivery and booking apps with maps, payments and notifications.
Fintech & wallet apps
Secure payment, wallet and finance apps with biometric auth (capability, built to your compliance needs).
Health & fitness apps
Tracking, wellness and care apps with sensors, reminders and sync.
Internal & field-team apps
Apps for staff and field teams - forms, offline capture and dashboards.
Apps with backends & real-time
Chat, live tracking and presence, built on the backend and APIs your app needs.
Offline-first apps
Apps that keep working with no signal and sync cleanly when they reconnect.
PWAs (install-free)
A progressive web app is an install-free alternative to a native app - lighter reach without the store.
Not building a native app? Need a website, web app or a web-presence PWA? See web design & development. Building a SaaS platform or internal system without a mobile app? See custom software development.
Native, cross-platform, or a PWA?
It's a budget and strategy call before it's a technical one. Cross-platform is the smart default - one codebase for both stores. Native is worth it when the product truly demands it. And sometimes a PWA is the honest answer. Here's how we'd guide you.
| Cross-platformReact Native / Flutter | NativeSwiftUI / Kotlin | PWAInstall-free web app | |
|---|---|---|---|
| Best for | Most apps - one codebase for iOS + Android | Performance-heavy or hardware-deep apps | Install-free reach, content and light tools |
| Relative cost | Lower - one codebase, not two | Highest - two separate builds | Lowest - no app store, one web build |
| Speed to ship | Fast | Slower - two platforms to build | Fastest |
| Main trade-off | A thin native layer for the rare edge feature | Two codebases to build and maintain | No app-store presence; limited device APIs |
| When we recommend it | The smart default for most teams | When the product truly demands it | When install-free is genuinely the right call |
When we'd tell you NOT to build native
If your app is mostly content, forms or standard flows, going fully native is usually just the expensive way to get there - and a PWA might do the job for a fraction of the cost. We make that call with you in discovery, in writing, before you spend on a build you don't need.
How an app project actually runs
Weekly demos, clear milestones and a fixed price agreed up front - and we plan around the current App Store and Google Play review and testing requirements, so your launch date is a real one.
Discovery & scope
2-3 daysWe lock scope and the native-or-cross-platform call, in writing, with a fixed quote you approve first.
Design
1-2 weeksiOS and Android UX/UI in your brand, reviewed together at every milestone.
Build
weeksCross-platform or native engineering, demoed on real builds every week.
Launch
a few daysTested on real devices, then submitted to the App Store and Google Play - we handle submission for you.
Care
OngoingOptional care from $100/month for monitoring, OS-version updates and store compliance.
The stacks we build apps with
We're stack-agnostic and pick the right tool for your app - cross-platform when speed and budget matter, fully native when the product demands it. Go deeper on each:
Cross-platform
Native
Install-free
Progressive Web Apps
An install-free alternative to a native app - lighter reach, no app store.
We won't show you a wall of app screenshots.
We're a growing mobile practice, so we won't pretend to a portfolio we haven't shipped yet. Here's the more honest signal instead - what we engineer, how we protect you, and the terms in writing.
What we engineer into apps
- Offline sync
- Push notifications
- Deep links
- Biometric auth
- App-store submission
- Over-the-air updates
- Real-device QA
You own 100% of the code and IP
Full ownership transfers to you on final payment - no lock-in, no license back to us.
We sign an NDA on request
Your idea and data stay confidential from the first conversation.
Milestone-based payments
Payments are tied to delivered, approved work - never 100% upfront.
We submit to the stores for you
App Store and Google Play submission and release is part of the build, not your problem.
A registered company since 2016
A real, incorporated business - not an anonymous freelancer or a marketplace listing.
Senior people, direct
You work with the people building your app - no account managers, no offshore handoff.
The engine behind an app, we've already shipped
The backend, APIs, authentication and real-time features a serious app needs are the same ones we build for the web - and we've shipped those in production. See our web and app work (web projects, honestly labelled - not dressed up as app screenshots).
How much does a mobile app cost?
From a simple single-purpose app to a full iOS and Android product - published starting prices, never a quote wall. Here's where each build begins:
| Package | What you get | Starts at | Typical timeline |
|---|---|---|---|
| Starter AppA simple, static or single-purpose iOS + Android app |
| from $500 | 2-4 weeks |
| Mobile App BuildSMBs and teams needing a full iOS + Android app |
| from $15,000 | 8-14 weeks |
Somewhere in between, or just an MVP? Tell us what you have in mind and your budget - we'll scope an honest fixed price for the app you actually need.
Get a fixed-price estimatePublished fixed prices
No quote wall - you see a starting price here, and a fixed price before we begin.
Milestone-based payments
Payments are tied to delivered, approved work - never 100% upfront.
You own 100% of the code
Full code and IP ownership transfers to you on final payment. No lock-in.
Need AI features in your app? See how we scope AI development. Ongoing care plans from $100/month. Prices in USD. See full details on our transparent pricing page.
Why teams choose us for their app
Six things you can check, not adjectives you have to trust.
Stack-agnostic, not stack-locked
We recommend native or cross-platform for your product and budget, not the one we happen to sell.
The native-or-cross-platform call, in writing
We make the decision with you in discovery - before you spend on a build you don't need.
See how it worksPublished fixed prices, no quote wall
You see a starting price before you talk to us, and a fixed price before we start.
See pricingYou own 100% of the code and IP
Full ownership transfers to you on final payment - no lock-in, no license back to us.
We submit to the App Store and Google Play
Store submission and release is part of the build, not left on your plate.
Senior people, direct
You work with the people building your app - a registered company since 2016, no account managers or offshore handoff.
An agency build vs the alternatives
No-code builders are cheap but you outgrow them. Freelancers are a gamble on one person. Premium agencies cost a fortune and hide the price. Here's where a fixed-price, senior-team app build sits.
| No-code app builder | Freelancer / offshore | Premium agency | Intention InfoService | |
|---|---|---|---|---|
| All-in cost | Cheap monthly, you outgrow it | Low, but variable | Very high, behind a quote | Published fixed prices |
| Native + cross-platform | Templated, limited | Whatever they know | Both | Both - the right one for your product |
| Native-vs-cross-platform advice | None | Rarely | Sometimes | In writing, in discovery |
| App Store & Play submission | Your problem | Sometimes | Yes | We handle it for you |
| Who builds & supports it | You do | One person, key-person risk | Account managers + teams | A small senior team, direct |
| Typical timeline | Your spare hours | Variable | Months | Weeks |
| You own the code & IP | Locked to the platform | Usually | Yes | Yes - 100% on final payment |
The short version: a real iOS and Android app, the native-or-cross-platform call made honestly, the price published up front, and the code yours to keep.
Mobile apps, answered
Should I build a native or cross-platform app?
For most apps, cross-platform (React Native or Flutter) is the smart default - one codebase ships to both iOS and Android faster and for less. Fully native (SwiftUI or Kotlin) is worth it when the product needs deep performance, hardware or platform-specific features. We make that call with you in discovery, in writing, before any build.
How much does it cost to build a mobile app?
Intention InfoService publishes fixed starting prices: a simple, static single-purpose app from $500, and a full cross-platform iOS and Android build from $15,000. The final number depends on features and complexity, but you always agree a fixed price after a short discovery, before any build begins.
How long does it take to build a mobile app?
A simple app can ship in 2-4 weeks; a full cross-platform build typically takes 8-14 weeks, depending on scope. We work in fixed sprints with weekly demos on real builds, so you always know exactly where things stand.
Do you submit my app to the App Store and Google Play?
Yes. App Store and Google Play submission and release is part of the build, not left on your plate. We plan around the current review and testing requirements of both stores - which we confirm at kickoff - so your launch date is a realistic one.
Who owns the code when you build my app?
You do - 100% of the code and IP transfers to you on final payment, with no lock-in and no license back to us. We hand over the repository and store accounts so you can host, publish and hire freely later.
Do you sign an NDA?
Yes, on request. Your idea, data and business details stay confidential from the first conversation. We're a registered company since 2016, and we're happy to sign your NDA or provide ours.
React Native or Flutter - which do you use?
Both, chosen per project. React Native fits teams already in the JavaScript and React ecosystem; Flutter is excellent for highly custom, animation-rich interfaces. In discovery we recommend the one that best fits your product, team and budget.
Do you build fully native apps too?
Yes. When a product genuinely needs it, we build fully native with SwiftUI for iOS and Kotlin for Android - for deep performance, hardware access or platform-specific experiences. We'll tell you honestly when native is worth the extra cost and when it isn't.
Do you maintain the app after launch?
Yes. Optional care plans start from $100 a month and cover monitoring, crash triage, OS-version updates and app-store compliance, so your app keeps working as iOS and Android evolve. There's no lock-in - the care plan is there if you want it.
Can you build a smaller app or an MVP on a tight budget?
Yes. Our Starter App begins at $500 for a simple, single-purpose app, and we're happy to scope an MVP to validate an idea. Tell us what you have in mind and your budget, and we'll shape an honest fixed price for the app you actually need.
Do you build the backend and APIs too?
Yes. Most real apps need a backend, APIs, authentication and sometimes real-time features - we build those as part of the app, and we've shipped that same engine in production on our web work.
Should I build a PWA instead of a native app?
Sometimes. A progressive web app is an install-free alternative that costs less and skips the app stores - a good fit for content and light tools. If it suits your goals better than a native app, we'll say so, and we build those too.
Ready to see a fixed price for your app?
Tell us what you're building. You'll get a fixed price, a timeline and a straight native-or-cross-platform recommendation - no quote wall, no obligation.