Unity Mobile Game Development for iOS & Android
XGameDev builds Unity mobile games for iOS and Android, with the codebase planned around real device testing, mobile performance budgets, SDK integrations, and store release requirements. We can build a new game, take over an existing codebase, or help a studio get a mobile build ready for TestFlight, App Store Connect, and Play Console.
Track Record
Mobile Development Capabilities
We've shipped multiplayer FPS titles, casual games, and educational mobile apps across iOS and Android. On mobile, the Unity work usually sits across gameplay, SDKs, device profiling, build signing, store rules, and enough release evidence that a client can see exactly which build went out.
For broader engine work, see our Unity development services. If the project also needs accounts, APIs, leaderboards, or multiplayer infrastructure, that sits under our full-stack development for Unity products.
Performance and Device Testing
Mobile performance work starts with a defined target: frame rate, memory ceiling, startup time, build size, and device tier. We profile with Unity's Profiler and Frame Debugger, then test on physical low-end and mid-range devices because thermal throttling, battery drain, GPU behaviour, and memory pressure rarely show up clearly in the Editor.
- Frame-rate and memory profiling against defined budgets
- Physical device testing across Android fragmentation and current iOS hardware
- Thermal throttling, battery drain, and long-session behaviour
- Build size and asset optimization, including Android App Bundle and Play Asset Delivery setup
Firebase and Live Data
Firebase is useful when the game needs player behaviour data, live tuning, crash reporting, or push notifications. We wire in the services that fit the project instead of adding the whole Firebase suite by habit.
- Firebase Analytics for player behaviour and retention data
- Firebase Remote Config for tuning difficulty, economy, or feature flags post-launch
- Firebase Cloud Messaging for push notifications
- Firebase Crashlytics for crash and ANR reporting, so stability issues surface before they turn into store reviews
Store Health and Compliance
Store review is only part of mobile release work. After launch, App Store Connect and Play Console health metrics can affect updates, visibility, and player trust, so we keep release support tied to those dashboards.
- Android Vitals monitoring (crash rate, ANR rate, startup time) through the Play Console after launch
- Xcode build management, Instruments profiling, and TestFlight distribution ahead of App Store submission
- Apple privacy manifest and Google Play data safety compliance
- App Store Connect and Play Console listing management, including responding to review feedback
Monetization and Integrations
Ads, IAP, attribution, and social SDKs change the native build, so they need version control, test accounts, store disclosures, and clear ownership. This is also where Unity mobile projects often run into Android Gradle, iOS framework, and plugin resolver issues.
- Ads and in-app purchase SDK integration
- Facebook SDK and social login integration
- Attribution, privacy prompts, data safety, and privacy labels
- Native plugin troubleshooting for Android and iOS builds
Related Mobile Unity Support
Mobile release work often overlaps with broader Unity engineering. Our technical articles on Unity Android Gradle build issues and Facebook SDK integration problems cover some of the failure modes we see around mobile builds.
What We Deliver
Cross-Platform Builds
One Unity C# codebase planned for iOS and Android, with platform-specific build settings, SDKs, safe areas, input behaviour, and store requirements handled deliberately.
Performance Optimization
Profiling, memory work, asset optimisation, and device testing so the game can hold its frame-rate target across lower-end hardware and current flagship devices.
App Store & Play Store Publishing
App Store Connect and Play Console setup, TestFlight and internal testing, listing checks, compliance work, and review-response support.
Firebase Integration
Firebase Analytics, Remote Config, Cloud Messaging, and Crashlytics added where they fit the game's live-ops and reporting needs.
Crash and Stability Monitoring
Crashlytics, Android Vitals, ANR reporting, and device-specific issue tracking carried into release support.
Xcode & iOS Release Workflow
Xcode builds, provisioning profiles, privacy manifests, Instruments profiling, and TestFlight review before App Store submission.
Mobile Games We've Shipped
What Clients Say
Our game is fantastic! Melanie helped bring our vision to life and was a pleasure to deal with throughout the project. She was very helpful, suggesting ways to improve gameplay and shareability.
Great games developer! Even better was his understanding of the project, going above and beyond of the spec to ensure I was happy with the finished game.
Frequently Asked Questions
Which devices and platforms do you support?
iOS and Android as standard, with WebGL, Windows, or macOS builds added where a project calls for it. We test across a spread of device tiers, including lower-end hardware and current flagship devices.
Do you handle App Store and Play Store submission?
Yes, including store listing preparation, compliance checks, and handling any review feedback from Apple or Google.
Can you integrate ads or in-app purchases?
Yes, we integrate standard ads and IAP SDKs as part of the build, alongside analytics if you need usage data post-launch.
Can you take over an existing mobile project?
Yes. We regularly step into an existing Unity mobile codebase to fix performance issues, add features, or finish a build that's stalled.
Do you set up analytics and crash reporting?
Yes. We typically integrate Firebase Analytics and Crashlytics as part of the build, so you can see player behaviour, crashes, and ANRs before store reviews become the first signal. Remote Config can also support tuning without a new binary where the game design allows it.
How do you handle Android Vitals and iOS release requirements?
We review Play Console health metrics such as crash rate, ANR rate, and startup time, then manage Xcode builds, Instruments profiling, TestFlight testing, and Apple's privacy manifest requirements before App Store submission.
Building a Unity mobile game?
Tell us the game type, current stage, target devices, and whether you need build support, store release help, or ongoing engineering.