Alfabella is made by Envolix with the help of open data and open software. This page lists the sources, their licences and the credit they are given.
1. Word lists
Alfabella's word lists (the grid answers, bonus words and Word Hunt dictionary in every language) are derived from sentence text published by Mozilla Common Voice under CC0 1.0 Universal, a public domain dedication. CC0 does not require credit, but we thank Mozilla and the Common Voice contributors. Only single words are used; no sentences are included in the app.
2. Dutch vocabulary: European Parliament proceedings
Most of the Dutch sentence text in Common Voice comes from the proceedings of the European Parliament (the Europarl corpus), which Mozilla republishes under CC0. Source: European Parliament, © European Union, 1996–2011. Reused with acknowledgement, as the European Parliament's legal notice permits. The European Parliament does not endorse Alfabella.
3. Font
Alfabella uses Atkinson Hyperlegible, © 2020 Braille Institute of America, Inc., licensed under the SIL Open Font License, Version 1.1. Read the full licence text (also at openfontlicense.org).
4. Third-party software
- Google Mobile Ads SDK and Google User Messaging Platform SDK (the optional hint video and the consent form): © Google LLC, used under the Google Mobile Ads SDK terms and the Google APIs Terms of Service.
- Firebase (Google Analytics for Firebase): © Google LLC. Open-source parts of the Firebase SDKs are licensed under the Apache License 2.0; the rest is provided under the Firebase terms.
- Android only: Google Play Billing Library and Google Play In-App Review: © Google LLC, under the Android Software Development Kit License.
- Open-source libraries: Kotlin and kotlinx (coroutines, serialization, datetime), AndroidX / Jetpack Compose, DataStore, Koin and Okio, all under the Apache License 2.0.
5. Questions
If you think something here is missing or wrong, email envolix.co@gmail.com.