Software Development
Grapefruit designs and develops mobile apps for iOS and Android, from self-service and account apps to loyalty and companion apps, for enterprises and funded product teams. We cover UX research, native or cross-platform development, back-end integration, testing and store release, building on our design work for the Telekom Romania MyAccount app and CEZ's cross-platform customer app.
Clients for this service: Work for Telekom Romania, CEZ
Flows and interfaces designed for iOS and Android conventions.
Swift/Kotlin or React Native, chosen for your features and team.
APIs, authentication, notifications and analytics connected to your systems.
Functional, performance and accessibility testing across devices.
App Store and Google Play submission, release management and maintenance.
2-4 weeks
Use cases, users, integrations and platform strategy.
You get: Feature map · Platform decision · Estimate
3-6 weeks
Clickable prototype tested with users.
You get: Prototype · UI kit
3-6 months
Sprints with test builds shared every two weeks.
You get: Test builds
2-4 weeks, then ongoing
Store release, analytics review and update roadmap.
You get: Store release · Update roadmap
AI in this service
Apps are becoming conversational: customers ask in natural language instead of navigating menus. We design in-app assistants over account, billing or product data with clear hand-off to human support, and use AI-generated test cases to cover more device and flow combinations before each release.
Proof
Align business, IT and legal on what to build first, in one focused session.
Cannot find your question? Ask a senior specialist directly.
Cross-platform frameworks such as React Native suit most account, loyalty and content apps and let one team ship both platforms. Native development makes sense for heavy device features, complex animations or strict performance needs. We recommend after discovery, based on features, budget and who will maintain the app.
A first release of a focused app typically takes 4 to 9 months including discovery, design, development, testing and store approval. We prioritise a release that solves the most frequent customer tasks first, then add features in regular updates.
Yes. Self-service apps depend on integrations with billing, CRM, identity and core systems. We define and test those APIs early, and where your back end is not ready we build a middleware layer so the app does not wait for a full back-office replacement.
Yes. We prepare store listings, privacy declarations and builds, manage submission and review feedback, and set up release processes for updates. Publishing is done under your developer accounts, so you keep ownership of the apps.
We test on a matrix of real devices and OS versions, combining automated tests for core flows with manual exploratory, accessibility and performance testing. Beta builds go to your stakeholders during development, so feedback arrives before release, not after.
Technical Lead · talk to us about mobile app development
Tell us what you need and by when. A senior specialist replies with a clear next step, not a sales deck.
We reply within 1 business day, usually the same day. Not ready to talk? Take the free AI assessment.
