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AppFactory Studio

Privacy Policy

Drypulse — Speaker Cleaner & Water Eject

Effective: 2 October 2026 · 한국어

1. What we collect

We collect and keep no personal data ourselves. There is no sign-up, no login and no account. The only thing the app sends to our server is the anonymous usage events described below, which contain no personal data. The advertising SDKs bundled in the app do collect data in order to serve ads (see section 4).

• Cleaning does not use the microphone. The app only plays tones through your phone's own speaker or earpiece. While a tone plays it may raise the media (or call) volume, and it puts your original volume back when the tone stops.
• The microphone is used only for the optional "Sound check", and only after you tap it and allow the permission. It plays a short 1 kHz tone and listens for 3 seconds. The signal is reduced to a single loudness number in your device's memory and immediately discarded. No audio is recorded, saved or uploaded, and audio never leaves the device.
• The app keeps, in its private storage: the last 5 cleaning runs (time, mode, completed or stopped), the before/after sound-check numbers, your settings, and a temporary note of your original volume so it can be restored even if the app is closed mid-run.
• The app is excluded from Android's automatic backup.
• The advertising identifier (GAID) is used by the ad SDKs. Our own app code neither reads nor stores it.
• Anonymous usage events — the app sends a small, fixed set of anonymous events (first launch, first completed cleaning, the "Remove ads" screen being shown and where it was opened from (Settings or next to the banner), purchase started, completed, cancelled or failed (with a technical failure reason), restore attempted, an interstitial ad being shown, and whether the app was reopened on day 1 and day 7) to a server we operate. Each event carries only an install identifier the app generates at random, an app tag, the event name and a timestamp; no advertising ID, device identifier, name, sound-check result or audio is included. We use it solely to see where people drop off, and raw events are deleted within 90 days, leaving only aggregate counts.
• Counters such as cleanings started, completed or stopped, modes used, sound checks and blocked outputs are numbers on your device and are never transmitted anywhere.
• There is no third-party analytics or crash-reporting SDK in the app.

2. Where data lives

Data	Purpose	Location
Microphone signal (sound check only)	Comparing loudness before and after cleaning	Device memory only — never recorded or stored
Sound-check numbers (before / after)	Showing the comparison	App private storage
Last 5 cleaning runs (time, mode, completed)	History	App private storage
Original volume while a tone plays	Restoring your volume afterwards	On device, removed once restored
App settings (volume boost, default mode, duration, theme)	Running the app	On device
Whether "Remove ads" was purchased	Unlocking and restoring the purchase	On device + Google Play
On-device usage counters	In-app decisions (e.g. when to ask for a review)	On device — never sent
Anonymous usage events (random install identifier only)	Seeing where people drop off	Our server — raw events for up to 90 days, then aggregates only

3. App permissions

Permission	Used for
Microphone (record audio)	Only the optional sound check, requested when you first start it. Audio is never recorded.
Change audio settings	Routing the tone to the speaker or earpiece and restoring your volume afterwards
Internet, network state	Showing ads, in-app purchase, sending anonymous usage events

4. Third-Party Services

Google Play Billing — in-app purchases are processed by Google, and the app only checks whether you own an item. We never see your payment details. Google's handling is covered by the Google Privacy Policy.

Unity LevelPlay & Unity Ads (Unity Technologies / ironSource) — to serve banner and interstitial ads via mediation, it collects and uses the advertising identifier (GAID), IP address, device information (model, OS version, language, etc.) and ad-interaction data, which may be passed to advertising partners during ad bidding. Unity's handling is covered by the Unity Privacy Policy, and you can opt out of personalized ads via the information icon shown on ads. Microphone audio and sound-check results are never passed to the ad SDKs.

Ad mediation partners — ads are selected through Unity LevelPlay mediation, which runs a real-time auction among the networks below. Each network's SDK is included in the app and, when it takes part in an auction, may process the advertising identifier (GAID), IP address (used to estimate an approximate region), device information, ad-interaction data and SDK diagnostic/crash information for ad delivery, measurement and fraud prevention. Each partner's handling is covered by its own policy:

Partner	Privacy policy
Unity LevelPlay · Unity Ads · ironSource Ads (Unity Technologies)	unity.com
Liftoff Monetize (Vungle)	liftoff.io
Mintegral	www.mintegral.com
Pangle (ByteDance)	www.pangleglobal.com
AppLovin	www.applovin.com
Meta Audience Network	www.facebook.com
DT Exchange (Digital Turbine)	www.digitalturbine.com
InMobi	www.inmobi.com
Moloco	www.moloco.com

5. Consent in Europe (GDPR / EEA, UK, Switzerland)

On devices that appear to be in the EEA, the UK or Switzerland, the app shows the InMobi Choice consent dialog (CMP) the first time an ad space is shown — never before your first cleaning has finished. It follows the IAB TCF standard.

• If you do not consent, or you dismiss the dialog, the ad SDKs are not initialised at all — no ad request is sent. Cleaning works the same either way.
• You can reopen it and withdraw consent any time from Settings → "Privacy choices". After withdrawal, any already-loaded ad is discarded rather than shown.
• Outside those regions the dialog does not appear; you can still limit personalised ads by resetting or deleting the advertising ID in your device settings.

6. International transfers

We transfer no personal data ourselves. The anonymous usage events in section 1 are processed on Cloudflare infrastructure (which may be located abroad) and contain no personal data. The advertising partners listed in section 4 may process data on servers abroad (including the United States) while serving ads, under their own policies. In Europe this only happens after the consent described in section 5.

7. Ad formats

• The app shows banner and interstitial ads. There are no rewarded ads.
• Banners appear only on the home and help screens, in a separate strip, and never while a tone is playing.
• Interstitials never appear while a tone is playing. They can appear only when you return to the home screen after a cleaning has finished, once your volume has been restored, at most every second time, never in the first session after install, and at least 180 seconds apart. They never appear at launch, during a permission request, after a stopped run or around the sound check.
• The one-time in-app purchase "Remove ads" removes all of them. No cleaning feature is locked.

8. Children

This app is for a general audience and is not directed at children under 13.

9. Your rights

• Change or withdraw ad consent — Settings → Privacy choices (devices in Europe).
• Reset or delete the advertising ID — device Settings → Privacy → Ads.
• Revoke microphone access — device Settings → Apps → Drypulse → Permissions. Cleaning works without it; only the optional sound check needs it.
• Delete everything — clearing the app's storage or removing the app erases the run history, sound-check numbers and settings.
• Questions — email us at the address below.

10. Contact

Email: leehywo@gmail.com

Privacy contact: AppFactory Studio Privacy  |  leehywo@gmail.com

11. Change history

Date	Change
2026-10-02	First published (launch preparation)