Third-party licenses
The website and the app use third-party components, mostly open source and one Google library under Google’s own terms. These are the ones whose licenses we have checked.
This website
| Component | License | Notes |
|---|---|---|
| Be Vietnam Pro (font) | SIL Open Font License 1.1 | Self-hosted on the site’s own server, not loaded from elsewhere |
| Geist (font) | SIL Open Font License 1.1 | As above |
| Next.js, React | MIT | Page framework |
The app
| Component | License | Notes |
|---|---|---|
| Google Play Billing Library (billing-ktx 9.1.0) | Android Software Development Kit License (Google’s terms, not an open-source license) | Android only. Purchases and subscription management through Google Play. Terms: developer.android.com/studio/terms.html |
| Kotlin, kotlinx.coroutines, kotlinx.serialization | Apache License 2.0 | The shared code of both apps |
| SQLDelight | Apache License 2.0 | Local database, both apps |
| Koin | Apache License 2.0 | Component wiring, shared code |
| AndroidX (core, activity, lifecycle, fragment, biometric, documentfile) | Apache License 2.0 | Android only |
| Jetpack Compose (UI, Material 3) | Apache License 2.0 | Android only, the screens |
| Apple system frameworks (such as StoreKit and CloudKit) | Apple’s SDK terms | iPhone only. The iPhone app uses no third-party Swift packages |
The list is taken from the app’s dependency declarations (its Gradle files and the Swift package manifest). Licence texts for each component are published by their authors. We do not list anything here that we have not checked.
Questions about licenses: info@haikotek.com.