What is mobile app development?
Mobile app development is the design, engineering and release of applications that run on iOS and Android — either as one shared codebase or as two native products. Neovantra builds customer-facing apps and internal field tools, and owns the parts that decide whether a product survives review and retention: performance on mid-range devices, offline behaviour, store operations and the analytics needed to improve it after launch.
The practical starting point is not a screen list but a usage model: where the user is, how often the task recurs, what happens when connectivity drops, and which device capabilities — camera, location, biometrics, push notifications — the workflow depends on.
Native or cross-platform: how we decide
React Native and Flutter cover the majority of product cases well, especially when a team wants one backlog, one design system and a release on both stores in the same week. We recommend native Swift or Kotlin when the product leans hard on platform-specific behaviour — background audio, BLE peripherals, heavy animation or tight hardware access — or when the client already staffs native teams.
The decision is written down with its trade-offs: binary size, hot-update constraints, third-party library maturity and the cost of the first feature that native would have delivered more cheaply.
How a mobile build runs
Weeks one to three cover product discovery, interface flows and a technical spike that proves the riskiest integration. Design happens in the open with a clickable prototype tested on real devices before engineering commits to the flow. Build proceeds in two-week increments with a continuous pipeline that produces test builds on every merge, so stakeholders install the current version from TestFlight or a distribution track each sprint.
Release management is scheduled rather than improvised: staged rollouts, a crash and ANR budget monitored per release, review-checklist preparation for Apple and Google, and an emergency rollback path proven before launch day.
The parts that are easy to underestimate
Offline behaviour, authentication refresh, deep links, push notification permission flows, in-app purchase entitlements and the humble fact that a phone on a train loses signal in a tunnel. We design these before the build, because retrofitting offline sync after a data model exists is expensive. Equally important: session handling and token storage, screenshot prevention where sensitive data appears, and accessibility for users who rely on dynamic text sizes.
What you receive
Source code in your repositories, store-ready builds, a component library shared between platforms where applicable, API contracts, a test suite covering critical flows, analytics event definitions, a release checklist, store submission support and documentation for both the engineering handover and the operations runbook.
Timelines, commercial options and support
A focused first release — one platform, three or four core journeys — typically takes ten to fourteen weeks including design and store review cycles; a two-platform release with deeper integrations runs three to five months. We price fixed for a defined release, or with a dedicated squad for a product roadmap. Post-launch work covers monitoring, crash triage, OS-version updates, iterative improvement against retention and completion metrics, and periodic security review of dependencies and transport.
Who this is for
Businesses launching customer-facing apps, field mobility tools, digital products, or mobile extensions to existing platforms.
What you receive
- Mobile product strategy and UX
- iOS and Android engineering
- Cross-platform app development
- App store launch support
- Analytics and lifecycle optimisation
Capabilities in detail
- Native iOS app development
- Native Android app development
- React Native development
- Flutter app development
- Hybrid mobile app engineering
- Mobile UI and UX design
- API and backend integration
- Payments, notifications, and real-time features
- App Store and Google Play deployment
- Mobile analytics and performance optimisation
Engagement options
- Fixed-price release plan
- Dedicated mobile squad with shared backlog
- Audit and stabilisation of an existing app
How long it usually takes
10-18 weeks depending on complexity
Tools and technologies
Flutter · React Native · Swift · Kotlin · Firebase · Node.js
Frequently asked questions
React Native or Flutter, or fully native?
For most products we recommend React Native or Flutter for speed and one backlog, unless the app depends heavily on platform-specific features. We confirm the choice during discovery with a written comparison of effort, performance and maintenance cost.
Do you handle App Store and Play Store submission?
Yes. We prepare the build configuration, privacy declarations, screenshots and review notes, submit both stores, and manage staged rollouts. The developer accounts are created and owned by your company so nothing depends on us.
How much does app maintenance cost after launch?
Most products need a retainer covering OS updates, dependency upgrades, crash triage and small improvements. Budgeting between 15 and 25 per cent of the original build cost per year is typical for an actively developed app.
Can you take over an app another vendor built?
Yes. We begin with a code and infrastructure audit, a prioritised risk list and a stabilisation increment before feature work resumes, so the team understands what it is inheriting.