Open-source Licenses

Last updated: 12 August 2026

Torvus is built on open-source software. We are grateful to everyone who wrote it. The components below are distributed as part of the Torvus mobile app or website, together with their licences and copyright notices.

Apache License 2.0

The following components are licensed under the Apache License, Version 2.0. The full text is reproduced at the bottom of this page.

Kotlin: Copyright © JetBrains s.r.o. and Kotlin Programming Language contributors.
kotlinx.coroutines kotlinx.serialization kotlinx-datetime kotlinx.collections.immutable: Copyright © JetBrains s.r.o.
Compose Multiplatform: Copyright © JetBrains s.r.o. Contains code from Jetpack Compose, copyright © The Android Open Source Project.
Jetpack Compose AndroidX Activity, Credentials, DataStore, Lifecycle, Navigation, Navigation3, SplashScreen: Copyright © The Android Open Source Project.
Ktor: Copyright © JetBrains s.r.o.
Koin: Copyright © Kotzilla and the Koin contributors.
Coil: Copyright © Coil Contributors.
Okio: Copyright © Square, Inc.
Firebase SDK for Android Firebase SDK for Apple platforms: Copyright © Google LLC.
Google Sign-In Google Identity Services Google Play services client libraries: Copyright © Google LLC.
GoogleUtilities GoogleDataTransport GTMSessionFetcher GTMAppAuth Promises (ObjC / Swift): Copyright © Google LLC.
AppAuth for iOS AppCheckCore: Copyright © The AppAuth Authors and Google LLC.
Compose Multiplatform WebView: Copyright © Kevin Zou.
Kotlin Wrappers: Copyright © JetBrains s.r.o. Used to build the Torvus website.

MIT License

The following components are licensed under the MIT License. The full text is reproduced below.

RevenueCat Purchases KMP: Copyright © RevenueCat, Inc.
ImagePickerKMP: Copyright © Ismoy Belizaire.
React React DOM: Copyright © Meta Platforms, Inc. and affiliates. Used on the Torvus website.

BSD 3-Clause License

nanopb: Copyright © Petteri Aimonen. The full text is reproduced below.

SIL Open Font License 1.1

Inter: Copyright © The Inter Project Authors. Used on the Torvus website under the SIL Open Font License, Version 1.1.

Other components

The "Review Wide" typeface used in the Torvus wordmark and headings is a commercially licensed font and is not open-source software.

Apache License 2.0 — full text

https://www.apache.org/licenses/LICENSE-2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at the address above.

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

MIT License — full text

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

BSD 3-Clause License — full text

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.