Legal notice and independence
Version of 19 September 2026.
Publisher
LetzTest is a service published and operated by SayPeter SARL-S, a limited liability company (société à responsabilité limitée) incorporated in Luxembourg, with its registered office in Luxembourg. SayPeter SARL-S is the publisher of this site, the seller of individual access and the issuer of invoices; LetzTest is the trade name under which that service is offered. The company name, the register number and the registered-office address are given at the foot of this page. SayPeter SARL-S falls under the small business exemption scheme (art. 57 Luxembourg VAT law) and therefore charges no VAT. Contact: hello@letztest.lu.
Hosting
The public site is hosted on edge delivery infrastructure with points of presence in the European Union. Account data is hosted in the European Union.
Independence from institutions
LetzTest is a private preparation platform published and operated by SayPeter SARL-S, a company established in Luxembourg. It is not attached to, affiliated with or mandated by the INL (Institut national des langues Luxembourg), the Ministère de la Justice or any other Luxembourg authority. Registration for the Sproochentest, the exam itself and the certificate are handled exclusively by the INL. Any score shown in LetzTest is an estimate produced by our tool for practice purposes.
LetzTest uses neither the coat of arms of the Grand Duchy of Luxembourg nor the logos of the INL, the Ministère de la Justice or any other authority, and never presents itself as mandated by them. The names of the assessment criteria and the description of the exam format are reproduced for information from public documents of the INL and the guichet.lu portal.
Intellectual property
The content of this site (text, layout, practice material, feedback) is protected. Any reproduction or extraction, including automated extraction, for purposes other than personal use is prohibited without written permission.
Reporting an error
Information about the exam is taken from public sources and can change. If you spot an inaccuracy, write to us: we correct it and date the update.
SayPeter SARL-S
9, rue Raymond Poincaré
L-2342 Luxembourg
RCS B313377 Luxembourg
hello@letztest.lu