How to say a number

Say only the answer: for “7 × 8 = ?”, say “fifty-six”. There is no need to repeat the equation — “seven times eight fifty-six” works too, but lengthens the measured answer time.

• Answers range from 0 to 120. The app recognises the usual forms (“zero”, “twelve”, “seventy-two”, “one hundred and twenty”…).
• A clear voice at normal volume is enough: no need to shout or over-articulate.
• Wait for the card to be displayed before answering; an answer said during the transition is not taken into account.
• If the answer is refused, the recognised text appears in red under the card: it is often a confusion between two close numbers (“fifteen” / “fifty”) or background noise.

The recognition language

The app expects the answer in the device language, among the sixteen languages of the app. The French voice model ships with the app; for the other languages, a model is downloaded automatically on first launch — then everything works offline.