Quainoo AIQuainoo AI
App Development

Apps people keep.

Custom mobile apps for iOS and Android — designed, engineered and launched by experienced developers.

Two smartphones showing a custom dashboard and booking app
Packages

Accounts, databases, notifications, payments, dashboards and integrations — scoped to what your product actually needs.

Cross-platform

App Launch

Businesses validating an app idea or giving loyal customers a branded app.

Proposed: from 15 000 PLN
Proposed pricing, awaiting final approval — every quote is confirmed after a scoping call.

One codebase (React Native / Flutter) shipped to iOS and Android.

  • Bespoke UI/UX design
  • User accounts & authentication
  • Database & secure API
  • Push notifications
  • Bookings, catalogue or loyalty module
  • Basic analytics
  • Testing on real devices
  • App Store & Google Play submission
Native or advanced cross-platform

App Scale

Companies building a core digital product with payments, dashboards and integrations.

Proposed: from 35 000 PLN
Proposed pricing, awaiting final approval — every quote is confirmed after a scoping call.

Native Swift / Kotlin or advanced cross-platform, chosen per project.

  • Everything in App Launch
  • Payments & subscriptions where appropriate
  • Admin dashboard (web)
  • Third-party integrations (CRM, ERP, APIs)
  • Advanced analytics & events
  • Security review & role permissions
  • Automated testing & CI deployment
  • Ongoing maintenance plan
Native vs cross-platform

Cross-platform

One codebase for iOS and Android. Faster to build, lower cost, ideal for most business apps.

Native

Separate Swift and Kotlin apps. Best for heavy graphics, device hardware or maximum performance.

How we build

  1. 01

    Discovery

    We map your users, goals and must-have features into a clear scope and estimate.

  2. 02

    UX & design

    Flows and high-fidelity screens you can click through before we write code.

  3. 03

    Engineering

    Front end, back end, database and APIs built in short, reviewed sprints.

  4. 04

    Testing

    Real-device testing on iOS and Android, plus security and performance checks.

  5. 05

    Store launch

    We prepare listings and submit to the App Store and Google Play.

  6. 06

    Maintenance

    Updates for new OS versions, monitoring, fixes and new features.

FAQ

Yes — eligible apps can be published on both stores. Apple and Google review every app against their own guidelines, so approval is decided by them; we prepare everything to meet their requirements and handle the submission.

Most business apps are best served by cross-platform. We recommend native only when your app needs advanced device features or maximum performance. We'll advise during discovery.

No. App prices shown are proposed starting points. Every app is quoted after a scoping call because features vary widely.

We offer maintenance covering OS updates, monitoring, bug fixes and new features, so your app keeps working as phones and stores change.

Scope your app

Let's build something
exceptional together.

We offer a completely free consultation where we discuss your business, ideas, goals — and recommend the best solution.