Jukebox Mahjong Privacy Policy
Effective date: October 15, 2026
This policy explains what information Jukebox Mahjong (the "Game") collects, why, who it is shared with, and the choices you have. The Game is published by Steve Ueda ("we", "us"). Contact: support@steveueda.com.
1. The short version
- You do not create an account to play. We never ask for your name, email address, phone number, contacts, photos or precise location.
- Your progress, settings and token balance are stored on your device.
- The Game uses device identifiers and gameplay information to run the game, understand how it is played, show optional reward ads and check purchases.
- Purchases are processed by Apple. We never see your card or bank details.
- You can ask us to delete information we hold (section 8).
2. What we collect
Collected automatically when you play
| Category | Examples | Why |
|---|---|---|
| Identifiers | A random install ID the Game creates; Apple's identifier for vendors (IDFV); the Apple advertising identifier (IDFA) only if you allow tracking when asked | Linking purchases to your device, counting players, measuring and showing ads |
| Device information | Device model, operating system version, language, time zone, app version | Making the Game work on your device and fixing problems |
| Approximate location | Country or region inferred from your IP address | Delivering ads and producing aggregate statistics. We do not collect precise (GPS) location |
| Gameplay information | Levels started, won or lost, moves, hints, undos, shuffles, session times | Balancing difficulty and improving the Game |
| Ad interactions | Reward ads offered and watched, rewards given | Granting rewards and measuring ad performance |
| Purchase records | The item bought, price, currency and Apple's transaction ID | Delivering what you bought and preventing fraud |
| Diagnostics | Crash, performance and other diagnostic information | Fixing problems and keeping the Game running smoothly |
Information you give us. If you email us, we receive your email address and your message. We use it only to answer you and keep a record of the request.
What we do not collect. Your name, postal address, contacts, photos, camera, microphone, health or financial account information, or precise location.
3. How we use it
- To provide the Game: keep your progress and tokens, deliver purchases and ad rewards.
- To improve the Game: understand how levels are played and tune their difficulty. Some players may see different settings so we can compare them.
- To show ads: reward ads are always optional. Our advertising partners use identifiers and device information to choose, show and measure ads and, if you allow tracking, to personalise them.
- To measure our own advertising: learn which of our ads led to an install or a purchase.
- To keep things secure: check that purchases are genuine and prevent abuse.
- To meet legal obligations: tax, accounting, and responding to lawful requests.
4. Who we share it with
We do not sell your personal information for money. We share information with these service providers so they can provide their services to us:
| Partner | What it does in the Game | What it receives | Its privacy policy |
|---|---|---|---|
| Google Firebase | Gameplay analytics, game settings, and checking and recording purchases | Install ID, app instance ID, device information, approximate location, gameplay events, purchase records, diagnostic information | https://firebase.google.com/support/privacy |
| Meta (Facebook SDK) | Measures our ads on Facebook and Instagram | App events such as install, level and purchase events; advertising identifier if you allow tracking; identifier for vendors; device information; IP address; crash information | https://www.facebook.com/privacy/policy/ |
| AppLovin (MAX) and the ad networks it works with | Chooses and shows optional reward ads | Advertising and device identifiers, device information, IP address and approximate location, ad interactions | https://legal.applovin.com/privacy/ |
| Apple (App Store) | Processes payments | Handled by Apple under its own policy | https://www.apple.com/legal/privacy/ |
Advertising and measurement partners may also use this information under their own privacy policies. Some US state laws treat that as "sharing" for targeted advertising (section 7).
We may also disclose information if the law requires it, to protect rights and safety, or as part of a sale or transfer of the Game, in which case the buyer must honour this policy.
5. Tracking on iPhone
The Game asks your permission before it uses the advertising identifier (IDFA) to track you across other companies' apps and websites. If you choose "Ask App Not to Track", neither we nor our partners use the IDFA. You can change your choice at any time in your iPhone's Settings > Privacy & Security > Tracking. Reward ads still appear when you ask for them; they are just not personalised.
6. Your choices
- Tracking: as described in section 5.
- Ads: reward ads only play when you choose to watch one.
- Stop all collection: delete the Game. This also deletes the progress, settings and tokens stored on your device.
7. Your rights
Depending on where you live (for example California and other US states), you may have the right to know what personal information we hold about you, to get a copy, to correct it, to delete it, and to opt out of its sale or sharing for targeted advertising. To use any of these rights, email support@steveueda.com. We will not treat you differently for using them.
California. In the past 12 months we collected the categories in section 2: identifiers, internet or other electronic activity (gameplay and ad interactions), commercial information (purchase records), approximate location, and inferences used for advertising. Sources: you and your device. Purposes: section 3. Recipients: section 4. We do not sell personal information for money. Our advertising and measurement partners may receive identifiers in a way California law treats as "sharing" for cross-context behavioural advertising. To opt out, choose "Ask App Not to Track" (section 5), or email us. We do not use or disclose sensitive personal information.
8. Access and deletion requests
Email support@steveueda.com and tell us what you would like. We reply within 30 days (45 days where California law allows). Because there is no account, the information we and our partners hold is linked to device identifiers, not to your name. We will delete everything we can identify as yours and ask our partners to do the same. Deleting the Game deletes everything stored on your device, including unused tokens, and this cannot be undone.
9. Children
The Game is not directed at children and is not intended for anyone under 13. We do not knowingly collect personal information from children under 13. If you believe a child has used the Game, email support@steveueda.com and we will delete the information.
10. How long we keep information
| Information | Kept for |
|---|---|
| Purchase records | 7 years, for tax and accounting |
| Gameplay and analytics information | Up to 14 months, then deleted or aggregated so it no longer identifies a device |
| Support emails | 2 years after the last message |
| Information held by our partners | Under each partner's own retention rules (see their policies in section 4) |
11. Security
Information is sent encrypted (HTTPS). Purchase checks run on a server with restricted access. No system is perfectly secure. If a breach affects you, we will notify you and the authorities as the law requires.
12. Where information is processed
We are based in the United States. Our partners process information in the United States and other countries.
13. Changes to this policy
If we change this policy, we will update the effective date above. If a change is material, we will tell you in the Game before it applies.
14. Contact
Steve Ueda, support@steveueda.com