These Terms of Use ("Terms") govern your use of the BG Trainer mobile and web application ("the App"), published by Stanislav Korchagin (dev.korchasa.bgtrainer). By installing, accessing, or using the App you agree to these Terms. If you do not agree, do not use the App.
BG Trainer is an educational tool that provides gamified grammar exercises for learners of the Bulgarian language at the A0 (beginner) level. The interface is available in Russian and Ukrainian. The web version is available free of charge; the iOS version is a paid one-time download with all lessons included.
You are granted a personal, non-exclusive, non-transferable, revocable license to use the App for your own language learning. You may not resell, redistribute, decompile, or reverse-engineer the App except where such restriction is prohibited by applicable law. The App's source code is published on GitHub under the MIT license; that license governs the source code, while these Terms govern your use of the distributed App and the hosted web service.
The App and its learning content are provided "as is" and "as available", without warranties of any kind, express or implied, including accuracy, fitness for a particular purpose, or non-infringement. Language content is provided for educational purposes and may contain errors. We do not guarantee any specific learning outcome.
To the maximum extent permitted by law, the publisher shall not be liable for any indirect, incidental, or consequential damages arising from your use of, or inability to use, the App.
The App does not collect or transmit personal data. All learning progress is stored locally on your device. See the Privacy Policy for details.
The iOS App is sold through the Apple App Store as a one-time purchase. There are no subscriptions and no in-app purchases. Payments, refunds, and billing are handled by Apple under the App Store Terms of Service.
We may update these Terms from time to time. Continued use of the App after changes take effect constitutes acceptance of the revised Terms.
Questions about these Terms: open an issue at github.com/korchasa/bg-trainer/issues.