1. Scope and provider
These Terms of Use govern your use of the "Klebster" service at klebster.com (the "Service"). The provider is:
Klebster
Email: info@klebster.com
By using the Service you accept these Terms. If you do not agree with them, please do not use the Service.
2. What the Service is
Klebster is a free game in which physical stickers are placed in the real world and searched for and found by other people. The Service provides a map, a location check, and the ability to register stickers with a photo, description and hiding-place hint, and to organise them into "series".
The Service is provided free of charge, with no guarantee of availability, completeness or continued existence. There is no entitlement to use it. We may change, restrict or discontinue features at any time.
3. Eligibility
- You must be at least 16 years old. Younger people may use the Service only with the consent of a parent or guardian.
- Searching for and finding stickers is possible without signing in.
- Creating series, joining as a placer, and placing stickers require signing in with a Google account.
- You are responsible for keeping your access secure and for the accuracy of the information you provide.
4. Placing stickers in the real world
This is the most important section of these Terms. Please read all of it.
Affixing stickers to property you do not own, without permission, may constitute a criminal offence (in Germany, criminal damage under § 303 StGB) or an administrative offence, and may give rise to damages claims. The Service never asks or encourages you to place stickers without permission.
You undertake to place stickers only where:
- the surface belongs to you, or
- the owner or another authorised person has expressly permitted it.
Placing stickers is expressly prohibited on or at:
- traffic signs, traffic lights, signalling equipment and anything serving road safety,
- vehicles, building façades, windows and doors belonging to others,
- monuments, artworks, cultural property and listed buildings,
- natural monuments, trees and protected areas,
- railway, public transport, utility and emergency infrastructure,
- any surface where placement is prohibited by authorities or by house rules.
You act on your own responsibility. You will indemnify the provider against all third-party claims arising from a sticker you placed, including reasonable legal defence costs. You are responsible for removal and for any cleaning or repair costs.
5. Safety while searching
Searching takes place in public space. Always stay aware of your surroundings:
- Never use the app while participating in traffic — neither while driving nor while cycling.
- Obey traffic rules and do not look at your screen while crossing a road.
- Do not enter private property, construction sites, railway tracks or other restricted areas.
- Adapt your behaviour to weather, time of day and surroundings; when in doubt, do not search alone in remote places.
- Displayed locations can be inaccurate. Do not rely on the map blindly.
Use is at your own risk. For damage caused by carelessness during use, the provider is liable only within the limits of section 9.
6. Your content (photos and text)
6.1 What you may upload
You may only upload content you hold the necessary rights to. For photos in particular:
- No identifiable people. Personality rights must be respected (in Germany, the right to one's own image under § 22 KunstUrhG). Photograph the sticker, not passers-by.
- No personal data of others — such as licence plates, name plates, doorbell labels or addresses.
- No third-party copyrighted works, unless a statutory exception applies.
- No interiors of other people's homes or non-public areas.
For both photos and text, the following are prohibited — content that:
- violates applicable law,
- is insulting, defamatory, threatening, harassing or discriminatory,
- incites hatred, is extremist or unconstitutional, or displays banned symbols,
- glorifies violence, is pornographic or harmful to minors,
- contains advertising, spam or commercial promotion,
- contains or links to malware.
You warrant that you hold all necessary rights and consents, and you will indemnify the provider against third-party claims arising from content you uploaded, including reasonable legal defence costs.
6.2 Rights you grant us
You retain the rights to your content. You grant the provider a non-exclusive, worldwide, royalty-free licence, limited to operating the Service, to store your content, process it technically (for example stripping metadata or adjusting format) and display it to other users as part of the game's features. We will not use it for advertising or pass it on for unrelated purposes. The licence ends when the content is deleted, except where it is retained in anonymised form under section 8.
6.3 Visibility
Please be aware that by placing a sticker you make its location and photo available to other users. The photo of a placed sticker is retrievable only by people who have found it; a series' reference photo is public. See the Privacy Policy for details.
7. Prohibited use of the Service
The following are prohibited:
- faking finds, for example by manipulating location data ("GPS spoofing") or by automated requests,
- using other people's identifiers or accounts, or otherwise impersonating someone,
- automated data extraction ("scraping"), bulk requests, or anything else that degrades operation,
- circumventing security, access or verification mechanisms, and probing for vulnerabilities without prior agreement,
- sharing access credentials, invite codes or find codes with people who could thereby register finds without actually being at the location,
- any use that endangers, harasses or violates the privacy of other people.
In case of violations we may remove content, disable features, and permanently block access. Further claims remain reserved.
8. Account, deletion and termination
You can delete your account at any time on the Account page. This deletes your personal data and your photos; placed stickers, finds and series are retained in anonymised form, because they represent shared game state belonging to other users. See the Privacy Policy, section 6, for details.
We may terminate the user relationship at any time with reasonable notice, and without notice in case of serious violations.
9. Liability
The provider is liable without limitation for intent and gross negligence, for fraudulent concealment of defects, where a guarantee has been given, and for damage arising from injury to life, body or health. Liability under product liability law remains unaffected.
For ordinary negligence, the provider is liable only for breach of a material contractual obligation (an obligation whose fulfilment makes proper performance possible in the first place and on whose observance you may regularly rely), limited to the foreseeable damage typical for this type of agreement. Liability is otherwise excluded.
As this is a free service, no warranty is given in particular for continuous availability, the accuracy of displayed locations, the preservation of stored data, or content posted by other users. We accept no responsibility for third-party content such as map imagery or linked sites.
10. Changes to these Terms
We may amend these Terms, for example when features change or the legal situation changes. The current version is always available on this page; the date at the top shows its status. By continuing to use the Service after a change, you accept the new version. If you do not agree, you can stop using the Service and delete your account.
11. Final provisions
German law applies, excluding its conflict-of-law rules and the UN Convention on Contracts for the International Sale of Goods. If you are a consumer, this choice does not deprive you of the protection of the mandatory provisions of the law of your country of habitual residence (Art. 6 Rome I Regulation).
The European Commission provides a platform for online dispute resolution: ec.europa.eu/consumers/odr. We are neither obliged nor willing to participate in dispute resolution proceedings before a consumer arbitration board.
Should any provision of these Terms be invalid, the validity of the remaining provisions remains unaffected.