Privacy Policy
Last updated: August 27, 2026
Jumpy Chewie is a free arcade game for iOS and Android, published by Guillermo Rodríguez Delgado. There are no accounts and no sign-in. This page is a plain statement of what the game stores on your device and what leaves it, and it serves as the privacy-policy URL required by the Apple App Store and Google Play.
The short version
Almost everything the game knows about you stays on your phone. Only two things leave it:
- a run you finish and choose to put on the leaderboard, sent to the game's own server so it can be ranked and checked;
- what Google AdMob needs in order to choose and measure an ad.
If you turn on Rank updates, a third thing leaves: the notification address for this installation, so the leaderboard can tell you when you have been overtaken.
Nothing at all is sent from the tutorial. There is no analytics SDK and no crash-reporting SDK anywhere in the game.
What is stored on this device
All of this lives in the app's own private storage and is never uploaded as a set:
- a random player ID and a random app-installation ID — both generated by the app, neither derived from you, your phone, or any device identifier;
- the display name you typed, if you chose one;
- your scores, your best, your run history, and any run still waiting to be uploaded;
- your settings: control style, haptics, music, sound, reduced motion, notification preferences, and whether you finished the tutorial;
- your answer to the ad privacy question, stored by Google's consent SDK.
While a finished run is waiting to be uploaded, its one-time proof is held in the iOS Keychain or the Android Keystore, never in ordinary app storage. The same secure store holds the short-lived leaderboard token described below. If that secure store is unavailable, the game fails closed and does not write the token anywhere else.
If you use your platform's device backups, this local data may be included in your own iCloud or Google backup. Those backups are managed by Apple or Google under your own account — I have no access to them.
What leaves this device
A finished run, when it can go on a board
A run is submitted only when it is a normal, scored run — not the tutorial, not a practice or debug run, with a score of at least 1, and only once you have chosen a display name. The submission contains:
- your random player ID and your display name;
- the score, and the three subtotals it is made of;
- how the run was played: jumps, near-misses, highest combo, power-ups collected and activated, shield breaks, boosted jumps, run duration and run mode;
- the run's seed, the app and build version, and the time your device says the run finished;
- the run's input trace — the timestamps of your swipes, taps and pauses on a fixed 8 ms grid, so the run can be replayed and verified rather than simply believed.
The input trace is a record of the buttons and gestures of one game, and nothing else. It contains no text you typed and nothing about your device.
If you are offline when a run ends, the result waits on your device and is sent automatically the next time the game can reach the server.
A notification address, only if you ask for one
While Rank updates is on, the game registers this installation with the leaderboard so it can notify you. That registration contains the random app-installation ID, the platform, the push provider and its environment, the provider's device token for this installation, and your three notification preferences. It contains no score and no name.
What Google AdMob sends when an ad is fetched
When an ad is requested, Google's Mobile Ads SDK collects and transmits what it needs on its own account — typically your device's advertising identifier, coarse device and network information, and how you interacted with the ad — subject to the privacy choices described below. The game never reads, stores or forwards any of it. See the ads section.
The leaderboard, and what other players can see
There are three boards: Today, This week and All time. A board shows your best accepted run for its period.
The only thing about you that other players ever see is the display name you typed, next to your score. Your player ID is never shown anywhere in the game. Names are 3–16 visible characters and are checked on both the device and the server; there is no other free-text field in the game.
Pick a name you are happy being seen by. A display name is public, permanent while it is on a board, and visible to everyone who opens the leaderboard. Do not use your real name, your email, or anything else you would not put on a scoreboard.
You can change your name at any time in the game; the old one is replaced on the boards.
Where the leaderboard runs
Submissions go over HTTPS to a leaderboard service I run myself, currently
at leaderboard-platform.gelemias.workers.dev, hosted on
Cloudflare's global network. It is the only server of mine the game talks to,
and it is used for one thing: ranking and verifying runs, and sending rank
notifications if you have asked for them.
Because that network is global, your submission may be processed and stored on servers outside your own country. It is encrypted in transit.
The game authenticates with a short-lived, player-scoped token issued for your random player ID. No administrative credential of any kind ships inside the app.
How long it is kept. A submitted run stays on the service as long as its board holds it — Today and This week roll over on their own schedule, and the All time board has no reset, so an all-time entry stays until you delete it. Deleting your player record, as described below, removes the record and all of its leaderboard scores.
Ads
Jumpy Chewie is free and paid for by advertising from Google AdMob. There are no in-app purchases. There are two ad placements, both at a break in play:
- a full-screen ad between some runs, after a result has been read;
- an ad you can choose to watch, after you have been chewed, to carry on with the run.
Nothing in the game is locked behind watching an ad. There is no banner anywhere.
Google acts as an independent controller of the data its SDK collects. What Google collects and how it uses it is described in Google's Privacy Policy and in How Google uses information from sites or apps that use its services. Personalised advertising can also be managed at My Ad Center.
Your choices about ads
The game uses Google's User Messaging Platform to ask for your choice where a choice is required. In the EEA and the UK that is the consent form you see the first time you play; refusing is a complete and respected answer, and the game carries on with non-personalised ads. Nothing is withheld from you for refusing.
On iOS, the same flow shows Apple's App Tracking Transparency prompt. If you decline, your advertising identifier is not made available and iOS serves non-personalised ads only. The game itself contains no tracking code and does not link anything it holds to data from other apps or websites.
You can reopen your choice at any time inside the game, at Settings → Privacy → Ad privacy. Where your region does not present a consent choice, that row says so: ads there are not personalised from a consent you gave.
Notifications
Notifications are off unless you turn them on. The game asks once; if you decline, it does not ask again and nothing is registered. You can turn Rank updates on or off at any time at Settings → Game.
Turning it off updates the registration so no further notification is sent. Because the operating systems do not run app code when an app is deleted, deleting the game stops delivery at the platform level; the service removes an installation once Apple or Google reports its token as unregistered.
What the game does not collect
There is no code anywhere in Jumpy Chewie that touches any of the following:
- no analytics SDK, and no crash-reporting SDK;
- no account, no sign-in, no email address, no phone number;
- no location request — the game never asks for it, precise or coarse;
- no contacts, calendar, photos, camera, microphone or files;
- no health or fitness data;
- no payment or financial information — there are no in-app purchases;
- no messages, no chat, and no social features of any kind;
- no age, birthdate or any other personal detail.
I do not sell your data, and I do not share it with data brokers. Nothing the game holds is combined with data from any other source, because there is no other source.
Deleting everything
Inside the game, Settings → Game → Reset everything does exactly that, in this order:
- removes this installation's notification registration;
- deletes your online player record and every leaderboard score attached to it;
- erases everything stored on the device — the player ID, the name, the scores and the settings.
It needs a connection. If the online delete cannot complete, nothing is reset, so that you are never left with an online identity you can no longer reach. Try again when you have a connection.
Deleting the app removes the local data but not your leaderboard entries — the app is gone before it can ask the server for anything. If you want your scores off the boards, use Reset everything first, or email me and I will do it for you.
You can also ask me directly for a copy of what the leaderboard holds about your player record, or for its deletion, at gelemias@gmail.com. Since there are no accounts, please write from a device that still has the game installed, or tell me the display name on the board, so I can find the right record.
Children
Jumpy Chewie is a general-audience arcade game. It carries advertising, so it is not distributed in Apple's Kids Category or Google Play's Designed for Families programme.
The game never asks for an age, a birthdate, or any personal detail, and I do not knowingly collect personal information from children. The only thing anyone types into the game is a leaderboard display name, and that name is public — so if a child plays, an adult should choose that name with them.
If you believe a display name or anything else on a board identifies a child, email me at gelemias@gmail.com and I will delete that player record and its scores.
Changes to this policy
This policy describes what a current store build of the game actually does. If the game's data practices change, this page is updated before the change ships, and the "Last updated" date above is revised.
Contact
Questions about any of the above go to gelemias@gmail.com, or see the Jumpy Chewie support page.