Wortschatz

Terms of use

Last updated: 20 May 2026. The legally binding version is the German one.

1. Scope

These terms govern your use of the Wortschatz mobile application (the "app") and the associated website wortodo.de. The provider is Beshoy Khalil, who publishes the app under the developer name "Wortodo" in the app stores (address and contact details: see legal notice). By installing, opening, or using the app or the website, you accept these terms.

2. What the service does

Wortschatz is a German vocabulary app. Each day it shows three pre-curated words (noun, verb, adjective/adverb) for your chosen CEFR level (A1 to C2), each with one of three pre-written example sentences and an English translation. The app offers a favourites view, two review games (Light Speed and Flashcards) and optional local reminders. The app works fully offline.

3. Price and purchase

The app is sold as a one-time purchase via the Apple App Store and Google Play. The single purchase price gives you permanent access to the feature set available at the time of purchase, as well as to future updates of the same app edition (so-called "lifetime" access). There is no subscription, no recurring fee, and no advertising. We do not sell data to third parties either; for stability and aggregate usage analysis the app does, however, use Firebase Crashlytics and Firebase Analytics. See the privacy policy for details, including the "Telemetry" opt-out toggle in the app settings.

During a time-limited launch phase the app may temporarily be offered free of charge. After this phase the app switches to the paid model; any free download obtained during the launch phase remains usable on the same terms thereafter (acquired at a price of 0 € under the respective store's rules). The regular purchase price that will apply afterwards is shown on the product page in each store.

Use of this website (wortodo.de) remains free of charge.

4. Data sources and licences

The app and this website combine several components under different licences. The following rules apply cumulatively and do not override one another:

  1. Wordlists — Wortschatz Leipzig (CC BY 4.0). The underlying wordlists are derived from the frequency lists of the Wortschatz Leipzig corpora of Leipzig University and are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0). The specific corpus used is deu_news_2024_1M (German news corpus 2024, one million sentences). Modifications made: lemmatisation via spaCy (model de_core_news_lg), aggregation of frequencies per (lemma, part-of-speech), filtering of digits, punctuation, acronyms and auxiliary verbs, and segmentation of the remaining entries by frequency into the CEFR levels A1 through C2. That licence permits anyone — including for commercial purposes — to copy, adapt, and redistribute the wordlists, provided the source is properly credited and a link to the licence is given. The obligations under CC BY 4.0 are not affected by these terms; the derived wordlists remain available to third parties under CC BY 4.0.
  2. App source code — MIT licence. Our published app source code is released under the MIT licence. The rights granted there (including commercial use) are neither restricted nor revoked by these terms.
  3. Example sentences, English translations, website content — our work. The German example sentences and English translations bundled with the app were produced with help of the Anthropic Claude API and are shipped as static content. The website content (text, images, layout) is protected by copyright. For these components we grant you a simple, non-exclusive, non-transferable right to use them for private, non-commercial purposes within the app. Any wider use requires our prior written consent.

The attribution required by CC BY 4.0 (Leipzig University) is provided both inside the app and in the footer of this website.

5. Accuracy and learning purpose

The words, genders, example sentences, and translations shown in the app are produced with care and reviewed for plausibility. Because parts of the content are generated with AI assistance, occasional linguistic inaccuracies or errors are possible. The app is a learning aid and is not a substitute for qualified language tuition, a dictionary, or professional translation. We therefore cannot guarantee at all times that the content is fully accurate or complete.

6. Acceptable use

You agree to use the app and the website only in accordance with applicable law. In particular you must not:

7. Availability

The app works offline and is in principle continuously available after installation. We do not guarantee any specific availability of the website; outages, maintenance windows, and changes are possible at any time. There is no entitlement to provision, continuation, or update of the app or the website.

8. Liability

The app and the website are provided free of charge and "as is". Liability for slight negligence is — to the extent permitted by law — excluded. Liability remains unaffected:

9. Privacy

The protection of your data matters to us. Details are set out in the privacy policy. The app uses Firebase Crashlytics and Firebase Analytics as described there; you can disable this collection at any time via the "Telemetry" toggle in the app settings.

10. Purchase via app stores, payment, and withdrawal

The app is distributed exclusively via Apple's App Store and Google Play. The respective store handles the purchase transaction — including payment processing, invoicing, tax statements, and (where applicable) refunds. The purchase contract and the related distribution channel are additionally subject to the store's terms of use and privacy policy; these are independent of these terms and outside our control.

Consumer right of withdrawal. For digital content not delivered on a tangible medium, the statutory right of withdrawal expires under § 356 (5) BGB as soon as we or the respective store have begun performance, provided that, as a consumer, you have (a) expressly consented in advance to performance beginning before the withdrawal period expires, and (b) confirmed your awareness that you lose the right of withdrawal once performance begins. This consent and confirmation are obtained by the respective store during the purchase flow.

Refunds. Refund requests are submitted directly to Apple (reportaproblem.apple.com) or Google (support.google.com/googleplay/answer/2479637) under their respective policies. Any further statutory warranty claims are governed by the applicable law.

11. Changes to these terms

We may amend these terms with effect for the future, for example to reflect changes in law, features, or the content offered. The current version is available at this URL and carries a "Last updated" date.

12. Governing law and venue

These terms are governed by the laws of the Federal Republic of Germany, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers this choice of law applies only to the extent that it does not deprive them of the protection afforded by mandatory provisions of the law of their habitual residence (Art. 6 (2) Rome I Regulation).

For consumers the statutory place of jurisdiction applies. If the contracting party is a merchant, a legal entity under public law, or a special fund under public law, the place of jurisdiction is the provider's seat.

13. Dispute resolution

We are neither willing nor obliged to participate in dispute settlement proceedings before a consumer arbitration board.

14. Severability

Should any provision of these terms be or become invalid, the validity of the remaining provisions is unaffected. The invalid provision is replaced by the applicable statutory rule.

15. Contact

For questions regarding these terms, please write to info@wortodo.de.