Kajai Download on the App Store

Privacy Policy

Kajai is built to respect you. There is no account and no login, your progress stays on your device, and the one thing the app does show, optional ads, is described plainly below.

Last updated: 8 July 2026. Data controller: Didstopia.

The short version

  • The app (Kajai for iOS) has no account, no login, and no analytics SDK. Your progress is stored on your device. It shows sparing interstitial ads and optional, player-initiated rewarded ads through Google AdMob; a one-time Remove Ads purchase removes interstitials permanently.
  • This website (kajai.app) uses Plausible Analytics: cookieless, no personal data, no cross-site tracking; aggregate metrics only.
  • This website sets no cookies and needs no consent banner. In the app, ad consent is asked where the law requires it (EEA/UK) and can be changed any time in Settings.

The app: Kajai for iOS

The app collects no personal data for itself: no account, no analytics SDK, and nothing is ever sold. The sections below describe all the data the app touches: local storage on your device, Apple's Game Center and App Store services, Google AdMob for the optional ads, and Sentry for crash diagnostics.

Information stored on your device

Kajai saves your progress, statistics, settings, and your in-progress game locally on your device (using the operating system's standard local storage). This data stays on your device and is removed if you delete the app.

Game Center

If you choose to use leaderboards and achievements, Kajai uses Apple's Game Center. Game Center is operated by Apple under Apple's Privacy Policy. Your Game Center identity and scores are handled by Apple, not by Didstopia. You can play the entire game without signing in to Game Center.

Purchases

Optional in-app purchases (such as Remove Ads) are processed by Apple through the App Store. Apple handles payment and billing; Didstopia does not receive or store your payment information.

Advertising

Kajai shows two kinds of ads. Sparing interstitials: never mid-game, never in the Daily Challenge, and never in your first session. And rewarded ads that only play because you chose to tap one (a rescue bomb or a revive). There are no loot boxes, no gacha, and no energy systems.

Ads are served by Google AdMob. When the app requests an ad, Google receives standard ad-serving data from your device, such as your IP address, device information, and ad interaction data, used to serve and measure ads and to prevent fraud. See how Google uses data from apps that use its services and Google's Privacy Policy.

You stay in control:

  • Consent first. In the EEA and UK a consent form is shown before any ad is requested (Google's consent framework). You can change your choice any time via the privacy options in the app's Settings.
  • Tracking is opt-in. iOS asks once, through Apple's tracking prompt, whether ads may be personalised. Decline and everything still works; ads are simply non-personalised.
  • General-audience creative only. Ad content is capped at a general-audience rating, matching the app's 4+ age rating.
  • Privacy-preserving attribution. Install attribution uses Apple's SKAdNetwork, which is designed not to identify you.
  • Remove Ads. A one-time purchase removes interstitial ads permanently, and the rewarded perks are granted without watching an ad.

Crash reporting

To keep the app stable, Kajai uses Sentry, a crash-reporting tool. When the app crashes or hits an error, Sentry receives diagnostic data: the error and its stack trace, your device model, the operating-system and app version, and a short trail of the in-app actions that led up to it. This contains no personal data; your IP address is not attached, and the data is used only to find and fix bugs, never for advertising, analytics, or tracking.

Data controller: Didstopia. Data processor: Functional Software, Inc. (Sentry), which processes the diagnostic data under its data-processing agreement; see Sentry's Privacy Policy. You are not asked to consent, because crash reporting relies on our legitimate interest in a stable app and involves no personal data or tracking.

This website: kajai.app

To understand how the site is used, kajai.app uses Plausible Analytics, a privacy-friendly, open-source analytics tool. It is:

  • Cookieless. No cookies are stored on your device, and no consent banner is required.
  • Free of personal data. No personal data and no persistent identifiers are collected, and you are not tracked across sites or over time.
  • Aggregate only. Plausible records anonymous, aggregate metrics: page views, referral sources, device/browser type, and country-level location derived without storing your IP address.

Alongside page views, the site records a small set of anonymous, aggregate custom events to gauge engagement: an App Store click (including which on-page placement was used) and reaching the features section. None of these contain personal data.

Data controller: Didstopia (the site owner). Data processor: Plausible Insights OÜ, which operates Plausible Analytics. Plausible is hosted in the European Union and is designed to comply with the GDPR and the ePrivacy Directive (PECR); see Plausible's data policy. Because no cookies and no personal data are used, no cookie-consent banner is shown.

Children

Kajai is suitable for a general audience (rated 4+) and does not knowingly collect personal information from anyone, including children. There is no account and no chat. Ad content is capped at a general-audience rating, and ads are never personalised unless you explicitly allow it in the iOS tracking prompt.

Your rights

Under the GDPR and similar laws you have rights over your personal data, including access, correction, deletion, and objection. In practice Didstopia holds almost nothing to exercise them against: the app's data lives on your device (deleting the app erases it), and the website's analytics are anonymous aggregates. For data handled by Apple (Game Center, purchases), Google (ads), or Sentry (crash diagnostics), the links above lead to their privacy controls; for anything else, email us and we will help. You can also lodge a complaint with your local data protection authority (in Finland, the Office of the Data Protection Ombudsman).

Changes to this policy

If this policy changes, the updated version will be posted on this page with a new "last updated" date.

Contact

Questions about privacy? Email support@kajai.app.

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