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On your device. Harmoniosa does not use accounts: stars, currencies, upgrades, seals and records are stored locally, and the app also keeps a backup copy in the phone’s own app storage. That copy is included in iCloud or Google backups if you have them enabled.

Uninstalling the app or clearing its data erases the progress on that device.

No. The demo saves its progress in the browser you play it in. The app starts fresh and continues with the full story: Water, Earth, Air and Ether.

Clear Air X and gather 80 of the 120 stars from the four elements. Each level awards three stars: winning, finishing with the Core at 60% or more, and completing the level’s challenge.

Ether is earned by playing: by winning levels, for stars, for bosses and in Arcade.

Aurum is earned in the Sanctuary, Aurum tab: through the Daily offering (an optional ad grants 2 Aurum, up to 6 times a day; after 3 the daily chest opens with 3 Aurum and 100 bonus Ether) or through Transmutation (250 Ether for 1 Aurum, up to 6 times a week).

Harmoniosa has no in-app purchases.

No. They only appear when you ask for them: the Daily offering, Double your Ether at the end of a run, and Revive (the Core returns at 50%, once per run). The whole game can be completed without watching any.

The reward is granted once the ad network confirms the ad finished; if you close it early it does not count, but it does not use up one of your daily offerings either. If you see “No ad is available”, check your connection and try again shortly. If your balance did not change after finishing an ad, write to us instead of repeating it several times.

Where your region requires it, the title screen shows Settings → Ad privacy. On iPhone and iPad you can also change tracking permission in the system Settings → Privacy & Security → Tracking. Whatever you choose, the game works the same.

Open Settings (or the pause menu) and check the Music and Sound effects sliders. On iPhone, make sure the silent switch is off and check the device volume. If a call or an alarm cut the audio, tap the screen to resume it.

The game uses your device language (Spanish or English). To change it, open Settings on the title screen and choose Español or English.

In Settings → Graphics choose Medium or Light: they lower resolution and effects (Light also turns off the glow). Closing other apps and turning off low-power mode also helps.

iPhone and iPad with iOS 15 or later. The Android version (7.0 or later) is coming soon to Google Play. The web demo runs in current browsers with WebGL: Safari, Chrome, Edge, Brave and Firefox.