Privacy policy
This policy covers the games published by Ludavia and this website.
Last updated 12 September 2026.
The short version. Our games keep your progress on your device and nowhere else. There is no account and no login, so nothing we receive carries your name. Two services are involved and both are named below: Google AdMob serves the advertising that funds the games, and Firebase tells us where players get stuck and when the game breaks. Where the law requires it, you are asked before any of them is switched on. This website counts its visits with Matomo, on our own server, without a cookie and without anyone else.
Who is responsible
Ludavia makes the games this policy covers. For anything in it, write to contact@ludavia.games. We answer in English and in French.
What the game keeps on your device
A Ludavia game saves a small file in its own private storage on your phone. It holds:
- your progress, meaning how many levels you have completed and which rules have been introduced to you;
- your settings, such as sound, vibration, colours and the language you play in.
This file never leaves your device. We cannot read it, and we never receive a copy of it. It is deleted when you uninstall the game, and the settings screen lets you erase your progress at any time.
Advertising
Our games are free and funded by rewarded advertising, which means an advert you choose to watch in exchange for help in the game. Adverts are served by Google AdMob. We do not select, target or receive them ourselves.
To serve an advert, Google may process technical data such as your advertising identifier, your IP address, the type of device you use and how you interacted with the advert. That processing is governed by Google, not by us. Their explanations are here:
Your choice. In the European Economic Area, the United Kingdom and Switzerland, a consent message appears before any advert is loaded, using Google's certified consent platform. You can accept or refuse personalised advertising, and you can change your answer at any time from the game settings. Refusing does not remove the adverts, it makes them non personalised.
On Android, you can also reset or delete your advertising identifier in the system settings, under Privacy, and that applies to every app on the phone.
What we never do
- No account, no login, no password, no email address collected.
- No name, no location, no contacts, no photos, no microphone.
- No advertising profile built by us, and nothing sold to anyone, ever.
- Nothing in the analytics that says who you are: we look at how a level goes, not at who played it.
Knowing where the game fails you
Two things we cannot see from here: where players stop, and what broke on a phone that is not ours. Both matter, so both are measured, and both are named.
Google Analytics for Firebase receives events about the game itself: which tier you reached, whether a level was completed or left, which language the game runs in. It attaches a randomly generated identifier for the installation, not for you, along with the device model, the operating system version and the country. We use it for one thing: finding out which levels are badly tuned. You can erase the identifier by uninstalling.
Firebase Crashlytics, from the same service, receives a report when the game crashes: what failed, on which device model, on which version of Android and which version of the game. It is what lets a bug that only happens on someone else's phone be found and fixed. It carries no message you wrote and nothing from your screen.
Not every failure crashes the game. A level that will not build, a saved file that will not read: those travel with the events above, as a name and nothing more, and are kept for the same two months.
You can refuse both. In the European Economic Area, the United Kingdom and Switzerland they are covered by the same consent message as the advertising, and refusing means no event and no crash report leaves your phone. The game plays exactly the same either way. We keep this data for the shortest period each service allows.
Children
Our games are not directed at children. The age at which somebody can agree to any of this on their own is not the same everywhere: the GDPR sets it at 16 and allows each country to lower it, never below 13. France chose 15, Germany kept 16, several others sit at 13. We do not knowingly collect data about a child below the age that applies where they live without the agreement of whoever holds parental responsibility.
Our games do carry a child mode, switched on from the settings by an adult. It keeps a progress of its own on the phone, separate from the adult's and never sent anywhere, and the way it is played is measured like the rest: the same anonymous events, no identifier beyond the installation, and the same consent gate. If you believe a child has provided personal data through one of our games, write to us and we will delete whatever we hold.
Your rights
Under the General Data Protection Regulation you may ask for access to your personal data, its correction or its deletion, object to its processing, and withdraw a consent you have given.
In practice, we hold nothing that identifies you, so there is usually nothing for us to send or erase. Requests that concern advertising data are handled by Google, and we will point you to the right place and help you follow it through. You also have the right to lodge a complaint with your national supervisory authority, which in France is the CNIL.
How to delete your data, step by step: what goes when you uninstall, and what to write to us for the rest.
This website
This site counts its visits with Matomo, which runs on our own server, in France. Nothing is sent to anyone else: there is no third party here, and no advertising.
No cookie is used to count you. Matomo recognises a visit for the length of a day, from your browser and a truncated form of your address, and that recognition is renewed every day. It cannot follow you from one site to another, and it does not know you came back last week.
What is recorded: the pages you visit, the language of your browser, where you arrived from, and an approximate country. Your IP address is shortened before it is stored, so it no longer designates you. The detail of each visit is erased after 180 days; only the counts remain.
If you would rather not be counted at all, say so here. Your answer is kept on your device, and nowhere else. Be warned that browsers erase it after a while if you do not come back, so it is worth checking this box again on a later visit:
Beyond that the site loads no font, image or resource from another server, and runs nothing else. It is hosted in France by OVH SAS, 2 rue Kellermann, 59100 Roubaix. Like any web host, OVH keeps server logs, including IP addresses, for the time the law requires.
Changes
If this policy changes, the new version is published on this page with a new date at the top. Significant changes affecting a game already installed are also announced inside the game.
This policy was written in English. The other versions are translations; where they differ, the English version is the one that governs.