1. The service
AT Filter is Internet filtering software installed on your devices, with an online console to manage them. The Essential plan is free; the Family and Institution plans are paid.
These terms apply to the use of AT Filter and to subscriptions. By creating an account, you accept them.
Updated: 23 October 2026
AT Filter is Internet filtering software installed on your devices, with an online console to manage them. The Essential plan is free; the Family and Institution plans are paid.
The account is opened by an adult, responsible for the devices they protect and the people using them. Keep your access details safe and tell us of any unauthorised use.
Prices are shown on the Pricing page, in euros including taxes. The subscription is paid by card, monthly or yearly, and renews automatically. The number of devices can be changed at any time; the change applies from the next invoice.
A 15-day free trial is offered once per household. You have 14 days after subscribing to withdraw and be refunded, unless you asked for the service to start before the end of that period; in that case, the period already used is due.
You can cancel at any time from the console. The subscription ends at the end of the paid period and the household goes back to Essential. If payment fails, the paid plan ends after a 3-day grace period.
We do everything we can to block inappropriate content and known workarounds, and we update the lists continuously. However, no filter can guarantee that all content is perfectly blocked. AT Filter does not replace the vigilance of parents or those responsible.
You may not install AT Filter on a device without the consent of its owner or of the person responsible for the user, use it to monitor an adult without their knowledge, or try to bypass or modify the software.
Our liability is limited to direct damage and, for a subscription, to the amount paid over the last 12 months. These limits do not apply in case of gross negligence or where the law forbids them.
Its processing is described in the privacy policy.
We may change these terms; you will be notified by email at least 30 days before a significant change. These terms are governed by French law. In case of dispute, contact us first; you may also use a consumer mediator free of charge: [to be completed].