Summary
- Playing does not require signing in. The app automatically creates an anonymous player ID so that your results can be saved to the TOP100 lists. If you wish, you can link your results to your Google account so they are kept when you change phones.
- The lists only show the nickname you choose, your points and your time. Don't use your own name as a nickname if you don't want others to see it.
- The game shows ads from Google AdMob. Personalised ads are shown only if you consent.
- We do not collect your name, location, contacts or photos. Your email address is stored only if you link a Google account yourself.
What Crack the Nut is
Crack the Nut (in Finnish Päivän Pähkinä, in Swedish Knäck nöten) is a daily brain puzzle game: every day the same four puzzles and a daily word for all players, and the best results rise to the TOP100 lists.
The game is published by, and the controller of the data is, Jengi Energia Oy (Finland). In the Google Play store the developer name is Jappman. Contact details are at the end of this page.
What data is processed
Stored on the server
- An anonymous player ID created by the app on first launch
- The nickname you choose
- Game results: points, times, dates and days played (streak)
- The start time of the day's game, so that the clock can be verified and cheating prevented
- If you link a Google account (optional): the Google account identifier and email address, so that your results can be restored on another phone
We do not collect
- Your name or phone number
- Your email, unless you link a Google account yourself
- Your location
- Contacts, photos or files
- Our own usage analytics
In addition, the phone stores the game state (for example an unfinished game), archive game results, word game statistics and settings, such as your chosen language. These stay on your device.
Publicly visible: your nickname, points and time are shown on the TOP100 lists to all players.
Ads
The game is free and is funded by ads. Ads are served by Google AdMob. Ads are not shown during play, but for example on the result page.
AdMob processes the device's advertising ID, IP address and basic device information to show and measure ads. Before the first ad, the app asks for your consent. If you do not consent, we only show non-personalised ads. You can change your choice at any time on the app's home page under Privacy and your data → Ad settings.
More about how Google uses data: policies.google.com/technologies/partner-sites.
Purchases
Ads can be removed with a one-time purchase. Purchases are handled by Google Play. We do not see your payment details; Google only gives us a purchase token, which is used to verify the purchase and link it to your player ID.
Service providers
We use the following services. They process data on our behalf or under their own terms.
| Service | Use |
|---|---|
| Google Firebase (Authentication, Firestore) | Player ID, nickname and results, plus the identifier and email address of a linked Google account. Data is stored on servers in the EU. |
| Google AdMob | Showing ads and managing consent |
| Google Play | App distribution and purchases |
Google may also process data outside the EU, for example in the United States. Transfers follow the EU–US Data Privacy Framework or the EU standard contractual clauses.
Legal basis
Providing the game service: the player ID, nickname and results are needed so that your results are saved and shown on the lists. Google account data is processed when you link your account yourself to keep your results.
Legitimate interest: storing the game start time to prevent cheating and keep the competition fair.
Consent: personalised ads.
Retention and deletion
Your results and nickname are kept as long as your player ID exists. You can delete your player ID and all its data on the app's home page under Privacy and your data → Delete my data, or by sending a deletion request to info@kalapaikat.net (include your nickname). The data is deleted from the server within 30 days at the latest, and your results are removed from the lists. Deletion also removes the Google account link.
If you uninstall the app, the data stored on the device is removed. Server data is removed only when you request deletion.
Your rights
Under the GDPR you have the right to access, rectify and erase your data, to restrict and object to processing, and to data portability. You can also withdraw your consent.
Requests can be sent to the address below. If you believe your data is processed unlawfully, you can lodge a complaint with the Finnish Data Protection Ombudsman (tietosuoja.fi/en) or the data protection authority in your own country.
Children
Crack the Nut is not directed at children under 13, and we do not knowingly collect their data. If you notice that a child under 13 has used the game, you can request deletion of the data.
Changes to this policy
If this policy changes, we update the text and the date at the top of this page. Significant changes, such as new paid tiers or new service providers, are also mentioned in the app's release notes.
Contact
Questions about this policy or the processing of your data can be sent to info@kalapaikat.net. Please use the subject "Crack the Nut".
Jengi Energia Oy
Crack the Nut