Hearing Maid: privacy policy
Effective 11 November 2026 · From Double Cherry ("we")
Hearing Maid is a listening-practice app. This page says what it does with your information. The short version: Hearing Maid keeps what you do on your own phone. We receive nothing from the app, and there is no account.
What stays on your phone
To work, the app saves these on your phone, and only there:
- your choices: language, weekly goal, light or dark, auto-play, and whether you have read the introduction;
- your practice: which sessions you started and finished, when, and which answers you gave;
- whether you have unlocked the full app;
- your reminder settings: whether reminders are on, and their time.
We cannot see any of this. It does not leave your phone through the app. Reset all progress in Settings clears your sessions and results. Deleting the app deletes everything the app saved.
Your phone's own backup (iCloud or your computer on iPhone; Google's backup on Android) may include the app's saved data if you have backup turned on. That is between you and Apple or Google, and you control it in your phone's settings. We cannot reach those backups.
What we do not do
- No account, no sign-in, no name or email asked for in the app.
- No analytics, no crash-reporting service, no advertising, no tracking, and nothing from the app is sold or shared with anyone.
- No automated decisions about you, and no profiles.
- The app does not use your microphone, camera, contacts, photos or location.
- The app makes no network connections of its own. The store handles purchases (see Purchases). Your mail app sends any email you write to us. Your browser opens this page.
Reminders
Reminders are off until you turn them on. When you do, the app asks your phone for permission to show notifications. (Android phones older than Android 13 do not ask.) The app then asks your phone to show a short reminder, such as "Today's listening · 4 min", at the time you chose. It does this on each day you have not practised yet, until you reach your weekly goal.
Your phone makes and shows each reminder itself. Nothing is sent to or from a server, and we do not know that you have them on.
- You can turn reminders off in Settings, or turn notifications for Hearing Maid off in your phone's settings, at any time. If you say no to the phone's question, the app works the same without reminders.
- On Android the app asks the phone to set your reminders again after the phone restarts. A reminder can arrive up to an hour after its time.
Purchases
Full access is a subscription, yearly or monthly, or a one-time purchase (shown in the app as "Lifetime access"), through the Apple App Store or Google Play. The store takes your payment, renews a subscription, and keeps the record of it, under its own privacy policy. We never see your card. You cancel a subscription on the store's own page (Settings → Manage subscription in the app opens it).
The app asks the store what this account has bought: when it opens, when you come back to it, and when you tap Restore purchase. It keeps the answer on your phone: whether you have full access, which way you paid, and, for a subscription, the date it runs to.
The stores give us records of the sales: what was bought, when, and for how much. Google Play also lets us find an order by the buyer's email address. We look at an order only when you ask us for help with it, for example a refund.
If you write to us
Contact support in the app opens your own mail app. So does Report a problem, under the sounds after an answer: the message is already filled in with the exercise's number, what played, the answer and what you chose, the app's version and your phone's system, so you can read all of it before you send it. You do not have to write to us; if you do not, the app works the same, but we cannot answer you.
If you send a message, we receive your email address and what you write. We use them only to answer you and to fix problems you tell us about. We do this because you asked us something. It is also in our legitimate interest to keep the app working well for the people who use it.
Your email may tell us about your hearing, your hearing aid or your implant. That is health information. We use it only to answer you, we keep it as described here, and we never pass it on.
Two companies carry our mail for us, and we give it to nobody else: Cloudflare, Inc. receives mail sent to our address and passes it on to our mailbox, and Google LLC (Gmail) keeps it and sends our replies. Both are in the United States and take part in the EU–U.S. Data Privacy Framework, under which the European Commission has decided that personal data sent to them is adequately protected. Our mailbox is protected by a password and two-step sign-in. We keep a conversation no longer than 12 months after its last message, then delete it.
If you test the app before it is released. To invite you to a test through Apple's TestFlight or Google Play, we give the store the email address you gave us. If you choose to send comments or crash reports through the test, the store passes them to us. We use them only to fix the app. We delete them, and your address, no later than 12 months after the test ends.
Your rights
You can ask us at support@doublecherry.hr what we hold about you, to correct it or to delete it. You can also object to how we use it, ask us to restrict it, or ask for a copy. You can complain to the data protection authority where you live. In Croatia that is the Agencija za zaštitu osobnih podataka (AZOP), azop.hr.
Children
Hearing Maid is made for adults. It is not directed at children, and we do not knowingly collect anything from them.
A health note
Hearing Maid is listening training. It is not a hearing test, a diagnosis or a fitting tool. What you do in it stays on your phone as described above.
Changes
If this changes, the new version replaces this page, with its new date at the top. If a change ever means the app sends information off your phone, the app will tell you before it does.
Contact
Double Cherry, obrt za računalno programiranje, vl. Luka Žarković Černeli, Ivanovićeva 14, 10040 Zagreb, Croatia, is responsible for this app and for the emails you send us (the "controller" under European data protection law).