Open source
Open-source licenses & acknowledgements
Frendy is built on excellent open-source software. We're grateful to these projects and list them here to honor their licenses.
Last updated: July 2026
Copyleft components. Items marked copyleft (AGPL-3.0, GPLv2+CE) carry obligations beyond attribution.
Mobile & desktop clients
| Library | Author | License |
|---|---|---|
| Kotlin & Coroutines | JetBrains | Apache-2.0 |
| Jetpack Compose / Compose Multiplatform / Material 3 | Google · JetBrains | Apache-2.0 |
| AndroidX (Activity, Navigation, Lifecycle, Paging, Camera, Security, Biometric) | Google / AOSP | Apache-2.0 |
| Ktor Client · kotlinx.serialization | JetBrains | Apache-2.0 |
| SQLDelight | Cash App | Apache-2.0 |
| OkHttp & Logging Interceptor | Square | Apache-2.0 |
| Coil | Coil Contributors | Apache-2.0 |
| Gson | Apache-2.0 | |
| LiveKit SDK (Android / Swift) | LiveKit Inc. | Apache-2.0 |
| ExoPlayer / Media3 | Apache-2.0 | |
| ZXing (QR) | ZXing Authors | Apache-2.0 |
| WebRTC (Android via LiveKit · desktop webrtc-java · iOS stasel/WebRTC) | WebRTC Project · onvoid · stasel | BSD-3-Clause |
| Socket.IO client (Java · Swift) | Socket.IO Contributors | MIT |
| JNA | java-native-access | Apache-2.0 / LGPL-2.1 |
| sqlite-jdbc (willena, SQLCipher build) · swift-sqlcipher | willena · skiptools · Zetetic | Apache-2.0 · BSD |
| ML Kit Barcode · Firebase Cloud Messaging & Crashlytics | Google Terms | |
| whisper.cpp · Whisper model | G. Gerganov · OpenAI | MIT |
| libsignal-client (Double Ratchet, X3DH, PQXDH) | Signal Messenger | AGPL-3.0 · copyleft |
| OpenJFX / JavaFX (desktop media) | Gluon / OpenJDK | GPLv2 + Classpath |
| FFmpeg (bundled CLI — desktop audio/video decode) | FFmpeg team | LGPL-2.1+ |
Server
| Library | Author | License |
|---|---|---|
| Node.js · Express | OpenJS Foundation | MIT |
| Mongoose · MongoDB driver | Automattic · MongoDB | MIT · Apache-2.0 |
| Socket.IO | Socket.IO Contributors | MIT |
| firebase-admin · livekit-server-sdk | Google · LiveKit Inc. | Apache-2.0 |
| jsonwebtoken · bcryptjs · helmet · cors · morgan · express-rate-limit · uuid · winston | various | MIT |
| dotenv | Motdotla | BSD-2-Clause |
| multer | Express Contributors | MIT |
| sharp (image processing) | Lovell Fuller | Apache-2.0 |
Infrastructure & website
| Component | Author | License |
|---|---|---|
| LiveKit (SFU) | LiveKit Inc. | Apache-2.0 |
| coturn (TURN/STUN) | coturn project | BSD-3-Clause |
| nginx | Nginx Inc. | BSD-2-Clause |
| MongoDB (server) | MongoDB Inc. | SSPL-1.0 |
| Sora · IBM Plex Sans / Mono · Noto Sans SC (fonts) | various type foundries | SIL OFL 1.1 |
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