Legal

Last updated: 14 August 2026

Copyright

The Tiger Shark app — including its question banks, reading passages, artwork, sounds, the Cosmo character, and the Tiger Shark name — is the copyright of Tiger Shark Education, except for the third-party components acknowledged below.

Use of the app

Tiger Shark is provided for personal, educational use. You may not copy, resell, or redistribute the app or its content without permission.

Not affiliated with the DfE or STA

Tiger Shark is an independent revision aid. It is not affiliated with, nor endorsed by, the Department for Education or the Standards and Testing Agency. "SATs", "Key Stage 2" and "Year 6" are used descriptively to explain what the app helps children practise. All questions are original and written for this app.

No guarantees, and a friendly disclaimer

The app is provided "as is". We work hard to keep the content accurate and aligned to the national curriculum, but we make no warranty of any kind and cannot guarantee any particular test result. To the fullest extent permitted by law, Tiger Shark Education accepts no liability for loss arising from use of the app. These terms are governed by the law of England and Wales.

Third-party acknowledgements

Kokoro Text-to-Speech

Speech audio used in this application was generated using Kokoro-82M by hexgrad, using the bf_isabella British English voice.

Kokoro-82M is made available under the Apache License, Version 2.0. Copyright and attribution remain with the respective Kokoro contributors.

Kokoro-82M: huggingface.co/hexgrad/Kokoro-82M
Apache License 2.0: apache.org/licenses/LICENSE-2.0

Kokoro-82M model weights, voice files and runtime are not distributed as part of this application; Kokoro was used only during development to create the pre-recorded audio. Build tools used in that process (such as eSpeak-ng and FFmpeg) are likewise not distributed with the app.

Fonts

Lexend — Copyright 2018 The Lexend Project Authors (github.com/googlefonts/lexend), with Reserved Font Name "RevReading Lexend".

Fredoka — Copyright 2016 The Fredoka Project Authors (github.com/hafontia/Fredoka-One).

Both fonts are licensed under the SIL Open Font License, Version 1.1: openfontlicense.org

Privacy

Tiger Shark collects no personal data. Read the full Privacy Policy.