Maze Hippo for iOS and Android · last updated 15 August 2026
Maze Hippo collects no data about you, and sends none anywhere. There is no account to make, no sign-in, no analytics, no crash reporting, no advertising, no advertising identifier, no tracking of any kind, and no update check. Nothing you do in the game is transmitted, because the game has no way to transmit anything.
That is not a policy decision that could quietly be reversed in a later
build without you noticing. The Android release package is built
without the INTERNET permission, so the
operating system itself would refuse a network connection the app tried to
make; and there is no networking code in the app to make one. Maze Hippo
works with the SIM removed and in aeroplane mode, and behaves identically.
It also asks for no permissions at all — not the camera, not the microphone, not location, not contacts, not notifications, not motion. There is no permission prompt anywhere in the game, because there is nothing in it that would need one.
Four things, all of them on your device, in the app's own private preferences, by the phone's standard settings storage:
That is the whole list. There is nothing else — no name, no identifier, no date, no device information, no record of when or how long you played. None of it identifies you, none of it leaves the device, and there is no backup service, sync service or cloud account behind it. It is included in your phone's own encrypted device backup only if you have that turned on, which is between you and Apple or Google. Deleting the app deletes all of it.
Nothing is stored about the levels themselves, because there is nothing to store: a level is computed from its number rather than loaded, so the number is the level. That is also why the list above is four short entries — a hundred levels of progress fit in a hundred characters.
The soundtrack and the effects are audio files inside the app, played by an audio engine that starts on the way into your first puzzle. Nothing is streamed, nothing is downloaded, and the microphone is never opened — the app has no recording feature and does not request microphone access.
On iOS the audio session is configured to mix with other audio and to honour the ring/silent switch, so starting the game does not stop whatever you were already listening to. Both volumes can be taken to zero on the front page.
Maze Hippo is suitable for all ages and collects no personal information from anybody, of any age. There is no chat, no user-generated content, no social feature, no leaderboard, no link out to a store, and nothing to purchase — there are no in-app purchases and no advertising.
The game is built with Flutter and includes two open-source packages:
flutter_soloud (the audio engine) and
shared_preferences (the settings storage above). A third,
image, is used only by a build-time tool that draws the app
icon and is not part of the shipped app.
None of them is an analytics, advertising or attribution SDK, and none
contacts a network on the app's behalf. The full list, with versions, is in
pubspec.yaml,
and the whole game is
open source
— so none of this has to be taken on trust.
Downloading Maze Hippo is a transaction with Apple or Google, not with us. They record the download, and they may give us aggregate statistics — numbers of installs by country, say — along with crash reports if you have chosen to share those with the platform. None of that is collected by the app, none of it identifies you to us, and it is governed by Apple's privacy policy and Google's rather than by this statement.
Rights to access, correct, export or erase personal data all presuppose that somebody holds some. Nobody here does: there is no server, no database and no account, so there is nothing to request and nothing for us to delete. The four values described above are on your device, under your control, and go when the app does.
If Maze Hippo ever does something this page does not describe, this page will be updated in the same release that changes it, and the date at the top will say so. Previous versions are in the file's history, which is public — this page is written in the game's own repository, so its wording is versioned alongside the code it describes.
Questions about any of this belong in Maze Hippo's GitHub issues, where the answer is useful to everyone rather than to one inbox.
This statement covers the app. The website you are reading it on is covered by the Hippo Herd privacy page, which collects nothing either.