Last updated: November 6, 2026
Kardashev Idle is a single-player idle game made by independent developer Oly, available on the App Store (iPhone) and Google Play (Android). This policy explains what information the game handles when you play, make an optional in-app purchase, or choose to watch a rewarded ad.
The game saves what it needs to keep your progress on this device: your civilization's energy, producers, research, colonies, galaxies, collection of figures and monuments, Crystal balance, goals, daily rewards, settings (sound, vibration, language) and whether you have already been asked to rate the game.
The game does not ask you to create an account or provide your name or email. Your progress does not sync between devices. Local game data remains on the device until you delete the app or its data. Device backups are controlled by Apple or Google and your device settings.
When the game starts, it sends the following to our own service, which we use to count installations and keep purchase records:
The service returns a private identifier that groups these records. We do not receive your name, email address, contacts or your game save.
The game sells three optional Crystal packs (consumable items). There are no subscriptions. Purchases are offered through Apple's App Store on iPhone and Google Play Billing on Android. Apple or Google handles checkout, payment authorization and billing. We do not receive or store your payment card number, billing address, or Apple Account or Google Account password.
Purchases are processed with RevenueCat, a service that manages in-app purchases for apps; it receives an anonymous app user ID and the purchase record. After a purchase is confirmed, the game sends our service the product purchased, its price and currency, the store, a short progress summary (era, number of resets and universes) and the private identifier described above.
Consumable items cannot be restored once they have been used. For questions about a charge or refund, use Apple's billing and subscriptions support or Google Play's refund help. More about how Apple and Google handle store information: Apple's App Store privacy notice and Google's Privacy Policy.
Kardashev Idle uses Google Mobile Ads (AdMob) to offer optional rewarded ads, for example to double production for a while or to open an extra capsule. An ad is shown only after you choose an ad-supported reward. The game does not show banner ads or automatic interstitial ads.
The Google Mobile Ads SDK may collect and process information such as your IP address (which may be used to estimate general location), device or advertising identifiers, ad impressions and interactions, and diagnostic or performance information. Google may use this information to deliver, measure and improve ads and to help prevent fraud.
The game uses Google's User Messaging Platform (UMP) to request and apply ad consent where required; you can change your choice at any time in the game's Settings under the ad privacy option. On iOS, if an App Tracking Transparency request is presented, your choice controls whether the advertising identifier may be used for tracking across other companies' apps and websites; you can change it later in iOS Settings → Privacy & Security → Tracking. On Android, you can reset or delete the advertising ID in the device's Google or privacy settings. Declining tracking does not remove rewarded ads, but they are not personalized using that identifier.
See Google's Mobile Ads SDK data disclosure and how Google uses information from apps that use its services.
The game may ask you to rate it. On iPhone this uses Apple's own rating window; a link to the store's review page may also open. Whether and what you rate is handled by Apple or Google; the game only remembers on your device that it has asked.
The game does not require your name, email address, contacts, photos, camera, microphone or precise location to play. We do not sell personal information and we do not run analytics or crash-reporting services in the game. If you contact us by email, we receive the email address and message you choose to send so we can reply.
Kardashev Idle is intended for a general audience. It does not require a player to submit identity or contact details, and we do not knowingly ask children to provide personal information. The optional advertising SDK may process device and ad-related information as described above; Apple's and Google's consent and age-related settings may affect how ads are delivered. A parent or guardian with a privacy question can contact us below.
Your game save is stored locally; you can remove it by deleting the app or its data. Our service keeps the random identifier, country, progress summary and purchase details described above. To ask us to delete these records, email us with the date and product of any purchase so we can find them. Records held by Apple, Google, RevenueCat and ad-related data handled by Google are subject to those providers' own retention and privacy practices.
We may update this policy when the game or its data practices change. The date at the top of this page shows when it was last revised.
Questions or privacy requests can be sent to olympos.and.dev@gmail.com.