Privacy Policy

Hearing Helper is built around a simple promise: what you hear stays on your iPhone. This policy explains exactly what that means in practice.

Short version

• We do not record audio.
• We do not upload audio anywhere.
• We do not ask you to create an account or sign in.
• We do not use analytics, advertising, or third-party tracking SDKs.
• We do not collect personal information about you.
• The only payment is a one-time in-app purchase processed by Apple. We never see your payment details.

What the app accesses on your device

Microphone (required)

Hearing Helper uses your iPhone's microphone to capture nearby sound and play a processed version through your headphones in real time. iOS will ask for your permission before the microphone is ever used.

• Audio is processed live, on-device by Apple's AVFAudio framework.
• Audio is never written to disk, never sent over the network, and never stored by the app.
• When you stop a listening session, the audio buffer is discarded.

Local settings (UserDefaults)

The app stores small preference values on your device only:

• Selected listening preset (e.g., Conversation, TV)
• Boost level
• Tone preference
• Whether you have completed onboarding

These values never leave your device. Deleting the app removes them.

Audio session metadata

iOS tells the app which audio output is currently in use (e.g., AirPods, Beats, wired headphones) so the app can show a "headphones connected" indicator. We do not log this information; it is read on demand from AVAudioSession.

Purchases

Hearing Helper offers a single one-time unlock for $9.99 (price may vary by region). The transaction is handled entirely by Apple via StoreKit 2.

• Apple processes the payment and sends the app a verified receipt.
• The app stores only the fact that the unlock has been purchased (in your iCloud purchase history, managed by Apple).
• We do not see your name, email, payment method, billing address, or device identifier.

For refund inquiries, use Apple's standard process via your App Store purchase history.

What we do not do

• No audio recording
• No audio upload
• No cloud processing
• No accounts, no sign-in, no email collection
• No analytics SDKs (no Firebase, no Mixpanel, no Amplitude, no Sentry, no anything)
• No advertising
• No location access
• No contact list access
• No HealthKit access (the app does not request it)
• No tracking across other apps or websites

The app contains zero third-party SDKs.

Children

The app is not directed at children under 13. It does not knowingly collect any information from children.

Security

Because the app does not transmit audio or personal information off your device, there is no server we operate that could be breached. Your hearing, your voices, your conversations stay with you.

Changes to this policy

If this policy ever changes, the new version will be published at this URL with an updated effective date. Material changes that expand what data the app accesses will be communicated through an in-app notice before they take effect.

Contact

For privacy questions, contact: hearinghelper@keltek.ai.

Governing law

This policy is governed by the laws of the user's country of residence to the extent permitted. Disputes related to the App Store purchase itself are governed by Apple's standard EULA.