By installing or using Arroro Go ("the app"), you agree to these terms. If you do not agree, please do not use the app.
OttoArk grants you a personal, non-exclusive, non-transferable licence to install and use the app on devices you own or control, for your own non-commercial use. This licence does not transfer ownership of the app or of anything in it.
The app includes work created by others and used under open licences — board-shape artwork, piano samples and the typeface. Each is attributed on the in-app Credits screen (Settings → Credits) together with its licence, as those licences require. Those items remain the property of their authors and are governed by their own licence terms, not by this section.
The app collects nothing and transmits nothing. Progress and settings are stored only on your device. See the Privacy Policy.
The number the app calls "IQ" is a game score. It is computed from how you play a level — moves, chains and pauses — and mapped onto a fixed scale defined inside the app. It is not a psychometric measurement, it is not diagnostic of anything, and the accompanying percentile describes a position on that same scale rather than a comparison against other people.
The app is provided as-is. OttoArk may update, change or discontinue it, including any individual feature, at any time. Store-level availability is controlled by Apple and Google.
To the fullest extent permitted by law, the app is provided without warranties of any kind, express or implied, including fitness for a particular purpose and non-infringement. OttoArk is not liable for any indirect, incidental or consequential loss arising from use of the app. Nothing here limits liability that cannot be limited by law, and you may have rights under your local consumer law that these terms do not affect.
These terms are governed by the laws of Taiwan, without regard to conflict-of-law rules. This does not deprive you of the protection of mandatory consumer law where you live.