MVP
A first version with core features to validate the idea.
from$7,000
2.5–3 months
- iOS + Android
- Up to 10 screens
- Push notifications
- Store publishing
iOS and Android
Mobile app development: apps people keep
We build apps that become a habit: fast, clear and useful every day. One codebase for iOS and Android — cheaper and faster with no loss in quality.
From idea to the stores
Native UX
An interface that follows iOS and Android guidelines: gestures, animations, dark mode and accessibility.
Cross-platform
React Native or Flutter: one codebase, two platforms, fast updates without losing performance.
Push & engagement
Push notifications, rewards, personal offers and deep links that bring users back.
Backend & API
Server, database, admin panel, Apple Pay / Google Pay, POS and CRM integrations.
Analytics
Firebase or Amplitude: see how people use the app and where they drop off.
Publishing & support
We prepare the app for review, publish to App Store and Google Play and update it for new OS versions.
What we build
- Loyalty programs
- Food and goods delivery
- Service booking
- Apps for employees
- Fitness, health, education
- A mobile version of your service
What's included
- Research and prototype
- UI design for iOS and Android
- App development
- Backend and admin panel
- Payments and push integration
- Testing on real devices
- Store publishing
- Analytics and crash reports
- Warranty and support
How much a mobile app costs
Price and timeline are fixed in the contract after a free brief.
Product
Best valueA full app with payments and a personal account.
from$12,000
3–4 months
- In-app payments
- Account and rewards
- Admin panel
- Analytics
Ecosystem
App + web platform + integrations with your systems.
from$18,000+
4+ months
- Web + mobile
- POS/CRM integration
- Multiple roles
- Support SLA
Staged payments 40 / 40 / 20Formal contractPay in USD, EUR or UAHYou own the code and access
How we work
1–3 days
Brief & research
We study your business, competitors and goals. Price and timeline get fixed.
1 week
UX prototype
Structure and flows that lead a visitor to a request.
1–2 weeks
UI design
A custom design for your brand on every screen size.
2–6 weeks
Development
Clean code, integrations, SEO foundation, testing on real devices.
After launch
Launch & growth
Analytics, team training, then SEO and product growth.
Our work
МобільніiOS / AndroidUI/UX
FitPulse Mobile
Cross-platform mobile app for health & daily progress tracking
An iOS and Android app: activity, sleep, nutrition, goals and habits in one place with motivating analytics.
Why clients trust us
We don't promise "#1 in a week". We offer terms that protect your money and your project.
Formal contract
Stages, deadlines, price and warranty — in writing before work starts.
Fixed price
The price doesn't change as long as the scope stays the same.
Staged payments
40 / 40 / 20: you pay for the result of each stage, not everything up front.
12-month warranty
We fix bugs for free for a year after launch.
NDA
We sign a non-disclosure agreement before discussing details.
You own the code
Domain, hosting, repository and admin access are registered to you.
Platforms, technologies and integrations we work with
WordPressWooCommerceShopifyOpenCartReactNext.jsNode.jsLaravelFlutterReact NativeFigmaGoogle Analytics 4LiqPayMonobankWayForPayStripeНова Пошта1С / BASTelegram Bot APIOpenAI / Claude API
Common questions
Didn't find an answer? Message us on Telegram — we reply within an hour during business hours.
Message on TelegramHow much does a mobile app cost?
An MVP for iOS and Android starts at $7,000, a full app with payments at $12,000, an ecosystem with a web platform at $18,000.
React Native or Flutter — which is better?
Both deliver great results. React Native is handy if you already have a React web app; Flutter shines with complex animation. We'll recommend one for your case.
Will you help publish the app?
Yes, we prepare screenshots, descriptions and all materials, and handle App Store and Google Play review on your behalf or help you set up developer accounts.
How much is support after launch?
It depends on scope: from updates for new iOS/Android versions to ongoing development. We offer a retainer or hourly billing.
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A mobile app makes sense when customers interact with you regularly: ordering, booking, collecting rewards. Then the app becomes the shortest path to a repeat sale — in the customer's pocket, with a push notification instead of expensive ads.
Prostir Lab develops iOS and Android apps with React Native and Flutter: loyalty programs, delivery, booking and employee apps. We handle design, backend and admin panel, and publish to App Store and Google Play.
Tell us about your project — estimate in 24 hours
Free consultation, a work plan and a fixed price. No obligations.