Cross platform app development services

Evaluating a cross-platform provider

Framework upgrades are part of the job

Cross-platform frameworks release new versions to support new iOS and Android features and requirements. Falling several versions behind makes each upgrade harder and can block store requirements, such as Google Play's target API rules, until the framework catches up. A provider should plan regular framework upgrades into the support arrangement, test them on both platforms and update third-party libraries at the same time.

Ask how far behind the current framework version their oldest maintained app is.

Managing third-party libraries

How a cross-platform engagement runs

1. 01

   Feature review

   Which features are standard and which need native work.

   Output: Approach confirmed

2. 02

   Proof of concept

   Riskiest native feature built first on both platforms.

   Output: Risk retired

3. 03

   Build

   Shared code with platform-specific modules where needed.

   Output: Test builds

4. 04

   Release on both stores

   TestFlight and Play testing, then store submission.

   Output: Live apps

5. 05

   Maintain

   Framework, library and OS updates on a schedule.

   Output: Healthy codebase

Warning signs

• Every app in one framework

  May mean the framework is chosen before understanding your needs.

• No native experience

  Platform-specific features may stall.

• No upgrade plan

  The codebase may fall behind quickly.

• Testing on one platform

  Issues on the other reach users.

Handover for a cross-platform app

Ask for documentation of the framework version, how to build both apps, native modules and why they exist, third-party libraries and their purpose, and store and signing arrangements for both platforms. Another developer familiar with the framework should be able to take over from that documentation.

Prove the hardest feature first

If the app depends on a feature that may need native code, such as background location, Bluetooth hardware or a specialised scanner, build a small proof of that feature on both platforms before committing to the full plan. It shows early whether the framework handles it well and how much native work is needed, and it turns the biggest unknown in the estimate into a known quantity.

A provider who suggests this unprompted is usually thinking about risk in the right way.

Consistent but native-feeling

Shared code makes apps look alike on both platforms, which helps brand consistency. Users still expect familiar platform behaviour, such as navigation gestures and system dialogs. A good provider balances the two, keeping your design consistent while respecting the conventions iPhone and Android users rely on, and tests both with real users of each platform.

Team continuity

Cross-platform apps often depend on a small number of developers who know both the shared code and the native modules. Ask how knowledge is shared within the provider's team, and make sure documentation keeps pace with changes.

Testing on both platforms every time

A change in shared code can behave differently on iOS and Android, especially where native modules or platform conventions are involved. Every release should be tested on real devices for both platforms, ideally with automated tests running on each, before going to TestFlight and Google Play testing tracks. Skipping one platform because 'the code is shared' is a route to platform-specific bugs reaching users.