Turn yourEnglish lessoninto a detective investigation

Two plans, both with a 14-day free trial: €9.99 per month with no commitment, or €79 per year. A card is required at sign-up and the charge goes through when the 14 days end unless you cancel. Both open exactly the same features and can be cancelled at any time from your account.

Yes, and without creating an account. On the Teachers page, the button “Try one of the investigations” sets everything up for you: a guest session, correction turned on, then the first free investigation in the language of the page. You play the real game, with the real corrections, exactly what your students will experience. The subscription then opens every investigation, including the paid episodes, plus class sessions: the code to share, the tracking board and the language you set for the whole class. And to go further with a real class, both plans start with a 14-day free trial, with nothing charged before day 14.

From your account: open the menu (your avatar), Subscription section, then “Manage my subscription”. You land on your Stripe billing space, where cancellation takes one click. During the trial, cancel before day 14 and nothing is charged. Afterwards, you keep access until the end of the period already paid.

Yes. Many schools reimburse the subscription when you present an invoice in their name. From your account: open the menu via your avatar, at the top right, Subscription section, then “Manage my subscription”. In your Stripe billing space, replace your name and address with your school's. Each invoice uses these details at the moment it is issued: do it before the end of your trial, as the first invoice arrives then. You can then download all your invoices from the same place. Invoices already issued are not changed.

From about age 10, as soon as they read and write comfortably. In a foreign language, the real criterion is the level: count on A2 in the session language to follow the investigation and ask simple questions, B1 to get the most out of it, B2 to spot the contradictions between statements. Below A2, free writing remains too demanding. The correction itself adapts to what each student writes, whatever their level.

Each student scans the QR code or opens the link, picks a nickname and enters the investigation. Students chat in writing with the story's characters: they ask their questions freely, in the session language, and the suspects answer while staying in character. Every message is corrected as the conversation goes (spelling, grammar, conjugation, clarity) and the correction stays visible in the bubble. The goal: cross-check the testimonies and accuse the right suspect before the end of the lesson.

Two ways: project the QR code for them to scan, or share the session link by copy-pasting it (school platform, Teams, email). Both lead to the same page: the student picks a nickname and plays, no account, nothing to install.

None. Students play without accounts, under a first name or nickname they choose. The session board is visible to you alone and session data is deleted automatically. After the session, we keep only class totals: number of questions, mistakes per axis, cases solved. No data can be traced back to a student. These totals are kept for two school years.

Up to 40, each on their own device, in the browser, with nothing to install.