Last Updated: April 18, 2026
By downloading or using our applications, these terms will automatically apply to you – you should make sure therefore that you read them carefully before using the app.
Usage: You are not allowed to copy or modify the app, any part of the app, or our trademarks in any way.
Security: It is your responsibility to keep your phone and access to the app secure. For vault apps like Calc Vault Pro, if you forget your PIN or lose your device, NDU Studio cannot recover your data as it is stored locally.
Service Changes: We are committed to ensuring that the app is as useful and efficient as possible. For that reason, we reserve the right to make changes to the app or to charge for its services, at any time and for any reason.
Termination: We may terminate your access to our apps at any time without notice if you violate any of these terms.