Terms of use
Version 1 of these terms, 12 October 2026.
In plain words
- It is free and has no ads.
- There are no accounts.
- The leaderboard is public and only an adult turns it on.
- The name should not be a real name.
- No cheating, no bothering others.
- If anything is wrong, write to us.
Before you start
These terms explain how the game Kukubos and the website kukubos.com are used. By installing the game or using the website, you accept what they say. Children under 14 play with the permission and supervision of an adult.
1. Who offers Kukubos
Kukubos is offered by Rocío Fernández Peral, acting as an individual. Contact: soporte@kukubos.com.
It is an individual who is not acting as a business or professional. That is why we do not publish a postal address. If that changed, we would say so here.
2. What Kukubos is
Kukubos is a free, ad-free mobile game to play as a family. This website gives information about the game and shows the public leaderboard of the daily challenge.
The website is not a way of playing Kukubos. The sample of the daily challenge, if there is one, is just a trial and stores nothing.
3. Licence to use
We give you permission to install and use Kukubos on your devices, for personal and family use, free of charge.
The permission is personal, non-exclusive and can be withdrawn if you break these terms.
The app is downloaded from the App Store or Google Play. Those stores have their own conditions, which also apply.
4. What you can and cannot do
You can play, share challenges with friends, type a game name on the leaderboard (with an adult) and write to us to ask a question, report a bug or ask us to delete something.
You may not copy, take apart, modify or resell the game, or its characters, music or artwork, except where the law allows it.
You may not cheat on the leaderboard. To prevent that, the server replays every game with the same engine and discards any that do not match.
You may not use the game to bother other people, to run security tests without permission or to overload the server.
5. The public leaderboard and names
The daily challenge leaderboard is public: it appears in the app and on kukubos.com with the rank, the name, the stars, the tries and the flight steps.
It is off by default. Only an adult can turn it on, and the name typed is optional.
The name has 2 to 12 letters and must not be anyone's real name or contain personal data (social networks, contact details, where you live, age or school). It must not be offensive.
Names go through an automatic filter. Anyone can report an inappropriate name inside the app.
We may hide or delete a name and its games if it breaks these rules.
From Settings the name is deleted on the phone. What has already been sent to the server is removed after 8 weeks, or sooner if you ask support by email.
Names are typed by players. When we are told about an inappropriate one, we review it and, if it breaks these rules, we hide or delete it.
6. Friend challenges
When you create a challenge, the level, pilot, moves, score and, if you wish, the name are stored on the server for 90 days. Anyone with the link can see it.
Sharing a challenge is for adults: the game asks for a simple sum first.
Nothing is stored from the game of whoever receives and plays a challenge (no name, no moves, no score): a counter just goes up by 1.
Do not share challenges with real names or personal data.
7. Your progress
Your progress (levels, stars, pilots and settings) is on your phone. There is no cloud backup. If you change phone or uninstall, it is lost.
We sell nothing inside the game and nothing you earn has value outside it.
No character, pilot or decoration is earned by sharing, rating or reviewing the game.
8. Availability and changes
We do our best to make Kukubos work, but it may fail and the server may sometimes be unavailable. Most of the game works offline; the leaderboard and challenges do not.
We may change or withdraw parts of the game or the server (for example, the leaderboard) and update the app to fix bugs or keep it secure.
If there were ever a price, purchases or ads, we would say so here and in the privacy policy before they arrived.
9. Liability
Nothing in these terms limits the rights the law gives you as a consumer, nor liability the law does not allow to be limited.
Playing on a phone requires attention to your surroundings. Take breaks and do not play while driving, walking in the street or looking after other people.
10. Intellectual property
The game, its characters (for example Pip, Bloop, Rocky or Zuzu and the rest of the crew), the texts, artwork, music and sounds are part of Kukubos. The person responsible reserves the rights the law gives her over them.
“Kukubos” is the name of the game. Kukubos is not registered as a trademark.
You can use our images from the press kit to write about Kukubos, under the conditions on the press page.
If you think something in the game infringes your rights, write to us and we will look into it.
11. Privacy and data
How we handle data is in the privacy policy, which is part of these terms.
To ask us for access, rectification, erasure or other rights, write to soporte@kukubos.com.
12. Changes to these terms
If they change, we will update this page and raise the version number. If the change is significant, we will also say so in the app.
13. Governing law and complaints
These terms are governed by Spanish law. Any dispute will be heard by the courts of Cuenca (Spain), without prejudice to the rights the law gives to consumers.
Before anything else, write to us: almost everything can be sorted out by talking.
Complaints about personal data: the Spanish Data Protection Agency (www.aepd.es).