Shindig is a cross-platform event discovery app built with Kotlin Multiplatform (KMP) and Compose Multiplatform. One codebase runs on both Android and iOS with 80% shared code.
What It Does
- Discover events happening around you from multiple aggregated sources
- Create and manage your own events
- Book and join events in seconds
- Subscribe to Shindig Spark for premium features via in-app purchases
Tech Stack
- Kotlin Multiplatform — shared business logic across Android and iOS
- Compose Multiplatform — shared UI layer
- Koin — dependency injection
- Ktor — networking
- DataStore — local storage
- PostHog — analytics and feature flags
- GCP Secret Manager — secrets management (no hardcoded keys)
- GitHub Actions — CI/CD pipeline
Recent Milestones
- iPadOS 26 support with auth sheet crash fixes
- In-app purchases live (Shindig Spark subscription)
- Cross-product analytics dashboard with PostHog
- City availability survey for out-of-market expansion
- Apple App Store review compliance (sign-in UX improvements)
- Full security audit — hardcoded secrets removed, encrypted token storage
- iOS bundle separation audit complete
Why KMP?
We chose Kotlin Multiplatform because event discovery has complex business logic (geo-spatial search, event aggregation, user preferences) but relatively standard UI patterns. KMP lets us share 80% of the code while keeping native performance and platform-specific UX where it matters.
Sub-100ms geo-spatial search. One codebase. Two platforms. No compromises.
What's Next
- Expanding to new cities (survey-driven market entry)
- AI-powered event recommendations
- Firefly virtual economy — earn and spend currency across the platform
- Enhanced social features
Built by Mathew Dostal — Fractional CTO & Principal Architect based in Austin, TX.