Open Source Licenses

Third-party attributions · Last Updated: July 26, 2026

Dam It! is built with respect for open source. This page lists the third-party libraries used in the Android application and the third-party assets used on this website, grouped by license. Their respective licenses are reproduced below as required by their terms.

A. Android Application Dependencies

The following open source libraries are used in the Dam It! Android application, cross-checked against the app's build configuration and grouped by license.

MIT License

RevenueCat (Purchases-Android)

License: MIT License

Used for: subscription entitlement management and in-app purchase handling

MIT License

Copyright (c) 2024 RevenueCat, Inc.

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.

Apache License 2.0

The components below are licensed under the Apache License, Version 2.0. The full license text is reproduced once in Section C and applies to each of the following components.

Google Play Install Referrer Library

License: Apache License 2.0

Used for: attributing referral and promo links via the Google Play Install Referrer API

Google Play In-App Review (play-review-ktx)

License: Apache License 2.0

Used for: prompting the in-app Google Play review flow

Google Play Services

License: Apache License 2.0

Used for: app distribution infrastructure, billing, and device integrity

AndroidX & Jetpack Libraries

License: Apache License 2.0

Includes: Core-KTX, Lifecycle Runtime-KTX, Lifecycle ViewModel-Compose, SavedState-KTX, Activity-Compose, Fragment-KTX, WorkManager, Jetpack Compose (UI, UI-Graphics, UI-Tooling-Preview, Material 3, Material Icons Extended), and Media3 (ExoPlayer, UI)

Used for: app architecture, UI (Jetpack Compose), background work, and in-app video playback

Firebase Android SDK

License: Apache License 2.0

Includes: Firebase Analytics, Firebase Crashlytics, Cloud Firestore, Firebase App Check (Play Integrity)

Used for: anonymised product analytics, crash diagnostics, referral-record storage, and integrity verification

Some Firebase components are additionally governed by the Firebase Terms of Service.

Kotlin Standard Library & Coroutines

License: Apache License 2.0

Used for: the standard Kotlin runtime and asynchronous programming (coroutines)

B. Website Assets

The dam-it.io website uses no third-party JavaScript framework - it is built with static HTML and CSS. The following third-party assets are used:

Playfair Display

License: SIL Open Font License, Version 1.1

DM Sans

License: SIL Open Font License, Version 1.1

Umami

License: MIT License

Used for: privacy-focused, cookieless usage analytics for this website (see our Privacy Policy)

MIT License

Copyright (c) Umami Software, Inc.

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.

C. Full License Texts

The MIT License texts for RevenueCat and Umami are reproduced in full above, alongside each component. The entries below cover the Apache License 2.0 and SIL Open Font License 1.1, which govern the components listed in Sections A and B.

Apache License, Version 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:

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

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.

SIL Open Font License, Version 1.1

Playfair Display and DM Sans are used under the terms of the SIL Open Font License, Version 1.1. The full license text is available at:

https://openfontlicense.org

This page is the authoritative attribution notice for Dam It!, and is the page the app's Settings → Open Source Licenses entry links to. If you believe an attribution is missing or incorrect, please contact contact@dam-it.io.