Fix Mobile Bugs & adding GPS Module

I have an active consumer-facing app on both Google Play and the App Store that needs a round of polish. On each platform I’m dealing strictly with functionality issues—nothing visual or performance-related—so you’ll be deep in the logic layer rather than tweaking layouts.

For Android, there’s an extra task: I want a small new module integrated. It’s a referral screen that pulls an invite code from my REST API, displays it, lets users share it, and records redemption counts. Figma designs and a concise API spec are ready to go.

Here’s how I’ll sign off the work:
• Every listed functionality bug on Android and iOS is reproducibly fixed and passes the in-house test suite.
• The new referral module works exactly as per design and existing architectural patterns, with clean, well-commented code.
• After release, no new crashes or major warnings appear in Firebase/Crashlytics for one full week.

The codebases are native—Kotlin on Android, Swift on iOS—with Git for version control and Jira for ticket tracking. If you’re comfortable jumping into both stacks and can start right away, send me a brief note outlining similar multi-platform fixes you’ve handled and your estimated turnaround.