Harmonic Detective
Last updated September 11, 2026
Harmonic Detective collects no data. It makes no network connections. Every image and every calculation stays on your device.
Nothing. Harmonic Detective does not collect, store, transmit, or sell any personal information or usage data. There are no user accounts and no sign-in.
All Fourier analysis and filtering happens entirely on your device. The app contains no networking code, no analytics, no crash reporting, no advertising, and no third-party SDKs. Nothing you load or create is sent anywhere by the app.
This public informational website counts aggregate visits to its four fixed pages: Home, Privacy, Support, and Terms. Each count contains only the page name, a broad referral class (Google Search, a listed AI assistant, direct, or other), and an automatic timestamp. The class is derived without retaining the referring URL. We do not collect or store IP addresses, user-agent strings, raw referrers or their paths and query strings, this page’s URL query strings or fragments, cookies, location, visitor or session identifiers, email addresses, support-message contents, images, or any Harmonic Detective app activity in this analytics dataset.
Assets, missing pages, errors, and any future API, private, authenticated, or identifier-bearing routes are not counted. Website hosting still processes requests independently of this aggregate page counter.
If you choose From Camera, the app uses the camera only to capture a photo for you to analyze. The captured image is processed on-device and is never uploaded or shared.
To open an existing image, the app uses Apple's system photo picker, which provides only the single image you select — the app never gains access to the rest of your photo library. If you choose Save to Photos, the app requests add-only permission to write your result back to Photos.
Opening or exporting through the Files app is limited to the specific file you choose.
The app collects no data from anyone, including children under 13.
If this policy changes, the updated version will be posted on this page with a new date.
Questions about privacy? Email ios-support@slick-engineering.com.