Terms of Use
These are the plain-language terms for using Kajai. Apple's standard licence also applies to every App Store app, and these terms sit alongside it. Nothing here takes away the consumer rights you have under the law where you live.
Last updated: 5 July 2026.
1. Acceptance
Kajai ("the app") is made and provided by Didstopia, an independent app studio based in Finland ("we", "us"). By downloading or using Kajai, you agree to these Terms of Use. If you do not agree, please do not use the app. You can reach us any time at support@kajai.app.
2. Apple's licence agreement
Kajai is distributed through Apple's App Store. Apple's standard Licensed Application End User License Agreement applies to your use of the app. These Terms supplement that agreement. If anything here conflicts with Apple's licence on the scope of your licence to use the app, Apple's licence agreement governs that point.
3. Your licence to use Kajai
We grant you a personal, non-exclusive, non-transferable, revocable licence to download and use Kajai on Apple-branded devices that you own or control, in line with Apple's App Store Usage Rules. This is a licence to use the app, not a sale of the app itself. You may not redistribute it.
4. Purchases and refunds
Kajai is free to download and play. It offers one optional, one-time in-app purchase, "Remove Ads", which permanently removes the interstitial ads. Remove Ads is a non-consumable purchase you can restore on your devices signed in with the same Apple Account. The price is always shown to you before you buy.
All purchases are processed by Apple, not by us. We do not receive your payment details and we are not able to issue refunds directly. To request a refund, visit reportaproblem.apple.com, sign in with your Apple Account, and follow the steps. If you are a consumer in the EU or EEA, your statutory rights, including the 14-day right of withdrawal for digital content where it applies, are handled through Apple's refund process and are not affected by these Terms. If something has gone wrong, tell us as well and we will do our best to help.
5. Advertising
Kajai is free to play and supported by ads served through Google AdMob. It shows sparing interstitial ads (never mid-game, never in the Daily Challenge, and never in your first session) and optional rewarded ads that only play because you chose to tap one. In the EEA and UK a consent form is shown before any ad is requested, and iOS asks once whether ads may be personalised; you can change either choice later in the app's Settings. A one-time Remove Ads purchase removes the interstitial ads permanently. How ad data is handled is described in our Privacy Policy.
6. Acceptable use
Please use Kajai as intended. You agree not to reverse-engineer, decompile, or disassemble the app except where the law expressly permits it, not to work around or tamper with the in-app purchase, the ads, or the Remove Ads unlock, and not to copy, resell, or redistribute the app or its content.
7. Intellectual property
Kajai, including its name, artwork, design, and gameplay content, is owned by Didstopia and its licensors and is protected by intellectual-property laws. Your licence does not transfer any ownership to you.
8. Disclaimer of warranty
To the fullest extent permitted by applicable law, Kajai is provided "as is" and "as available", without warranties of any kind, whether express or implied. We do not promise that the app will always be uninterrupted or error-free. Nothing in these Terms excludes or limits your mandatory rights as a consumer under the laws of your country of residence, including your statutory rights regarding digital content that does not conform to what was agreed.
9. Limitation of liability
To the extent permitted by applicable law, we are not liable for indirect, incidental, or consequential losses arising from your use of Kajai. We do not exclude or limit liability that cannot be excluded or limited under the law that applies to you, such as liability for death or personal injury caused by negligence, for fraud, or for intent or gross negligence, and we do not limit your mandatory consumer rights.
10. Changes to these terms
We may update these Terms from time to time. When we do, we will change the "last updated" date at the top of this page and post the new version here. Significant changes will be noted in the app's update notes where appropriate. Continuing to use Kajai after a change means you accept the updated Terms.
11. Governing law
These Terms are governed by the laws of Finland. If you are a consumer, this choice of law does not deprive you of the protection given to you by mandatory provisions of the law of your country of residence, and you may bring proceedings in the courts available to you under that law.
12. Apple as third-party beneficiary
Apple and Apple's subsidiaries are third-party beneficiaries of these Terms. Upon your acceptance, Apple has the right, and is deemed to have accepted the right, to enforce these Terms against you as a third-party beneficiary. Your agreement for the app is with us, not with Apple, and we, not Apple, are responsible for the app and its content to the extent the law requires.
13. Contact
Questions about these Terms? Email support@kajai.app.