Privacy Policy
We collect nothing about you. Kasetofon has no accounts of ours, no analytics, no advertising, no tracking, and no servers of ours. Your recordings are never sent to us, and we have no way to reach them, identify you, or identify your device.
Your recordings are written to your own phone. They leave it only in ways you switch on or ask for: a copy into your own iCloud Drive, a copy into your own Google Drive, a copy into a folder you pick, a backup file you save, or a recording you share. Each of those is described below, including how to turn it off and how to delete what it left behind.
Who this policy is from
This policy covers the Kasetofon apps for iPhone and Android, published by Ideja 3000 doo Užice (“we”, “us”), Serbia. It explains what the apps do, and do not do, with information on your device and in the accounts you connect to them.
Some features described here differ between the two apps, because the two platforms offer different storage systems. Where that is the case, the platform is named.
Information we collect
None. We do not collect, receive, store, transmit, sell, or share any personal information. We operate no server, no database, no account system and no analytics endpoint, and there is no code in either app that sends anything to a host belonging to us.
The apps do talk to Apple and Google for a small number of clearly-bounded jobs: verifying your purchase, and — only if you switch them on — storing copies of your recordings in your own cloud account. Those exchanges are between you and Apple or Google. We receive no content and no personal data from them.
What the app keeps on your device
Recordings
When you press REC, the app captures audio from the microphone and writes it as a WAV file in the app's own private storage. Recording only ever starts because you started it. The file name and the tape's default name contain the local date and time the recording began, so you can tell your tapes apart.
Recording continues while the app is in the background or the screen is locked, so a take is not cut short when you pocket the phone. On iPhone this uses the standard background audio capability and can show a Live Activity — the turning reels and the elapsed time — on your Lock Screen and Dynamic Island. On Android it uses a foreground service, which Android requires to display an ongoing notification; that notification shows the tape's name and the elapsed time, and is visible on the lock screen. Both are drawn on your own device.
We never receive your recordings and cannot access them. Where copies can leave the device — always at your instruction — is set out in sections 05 to 08.
Settings and the tape shelf
Your preferences and your shelf are stored in the system's standard app preference storage on the device. That includes deck finish, cassette colour, counter mode, VU settings, tape length, the names you type for your tapes and categories, each tape's file location, its duration, size, sample rate, channel count and recording time, and a yes-or-no record of whether you own the Studio Pack. It is used to bring the app back the way you left it.
Recovering an interrupted take
While a recording is running, the app notes on the device where the in-progress file is. If the app is ever killed mid-take — a crash, a reboot, the system reclaiming memory — that note lets it recover your recording the next time you open it. It is cleared as soon as a take finishes normally.
Microphone access
Both platforms ask your permission before Kasetofon can use the microphone, and both let you withdraw it at any time — on iPhone in Settings › Privacy & Security › Microphone, on Android in Settings › Apps › Kasetofon › Permissions.
The app uses the microphone for exactly one purpose: recording audio onto your tapes when you ask it to. Captured audio is written to your recording and nothing else. It is not analysed, transcribed, profiled, used to build any profile of you, or sent anywhere by us. Microphone capture runs only while a take is actually rolling.
Optional copies into your own storage
Kasetofon can place a copy of each finished take somewhere of your choosing. These options are off until you switch them on, and each is part of the paid Studio Pack.
iPhone — Store in iCloud
When SET UP › LIBRARY › STORE IN ICLOUD is on, new recordings are written into Kasetofon's folder in your iCloud Drive, synced by Apple between your own devices and visible to you in the Files app under “Kasetofon”. We have no access to that folder. Apple's handling is governed by Apple's Privacy Policy.
Two details worth knowing: switching the setting on affects new recordings — it does not move tapes already on the device; and switching it off later does not remove or bring back the takes already stored in iCloud. You manage those through iCloud Drive.
Android — Copy new takes
SET UP › LIBRARY › COPY NEW TAKES offers two destinations, both off by default:
- MUSIC — each finished take is also copied into the phone's public Music/Kasetofon folder, where your Files app, music players and other apps with permission to read audio can see it.
- SYNC FOLDER — each finished take is also copied into a folder you pick with Android's system folder picker. That folder can belong to a cloud service such as Nextcloud, Dropbox or Google Drive, in which case that service's own app uploads the copy and that company's privacy policy governs it from then on. The app keeps the permission you granted so it can keep writing there; you can revoke it in Android's settings.
These copies are yours, and they outlive the app. Erasing a tape inside Kasetofon does not delete copies already written to the Music folder or to a sync folder, and neither does uninstalling the app. Delete them where they live.
Backup files (Android)
SET UP › LIBRARY › BACKUP FILE writes a single .zip
containing your recordings and your settings to a location you choose with Android's file
picker — your Downloads folder, an SD card, a cloud folder, wherever you point it. It runs
only when you tap EXPORT, and the file is then entirely yours: we never see it, and nothing
about it is reported anywhere.
IMPORT reads such a file back and merges it into your shelf. Tapes that are already there are skipped rather than duplicated. Because a backup also carries the settings it was made with, importing one can switch the copy options in section 05 back on if they were on when the backup was taken — worth a glance at SET UP afterwards.
Google Drive backup (Android, from version 1.2)
Kasetofon can keep one backup in your own Google Drive so your tapes survive a lost phone or a reinstall. It is off until you use it, and it is part of the paid Studio Pack.
What is accessed
Kasetofon requests a single Google authorisation scope,
https://www.googleapis.com/auth/drive.appdata. This scope
grants access only to a hidden application-data folder that Drive keeps for this
app inside your account. It does not grant, and Kasetofon cannot obtain, access to any
other file in your Drive — not your documents, not your photos, not files created by other
apps. We chose it deliberately as the narrowest scope that can do the job.
What is stored there, and when
Exactly one file, named kasetofon-backup.zip, containing your recordings and
your app settings. Each backup replaces the previous one. It is written in two situations,
both of which you control:
- When you tap BACK UP NOW. Nothing is uploaded until you do.
- Automatically, about once a day, only if you set the switch to DAILY. This runs in the background while the app is closed, and only while your phone is charging and on an unmetered (typically Wi-Fi) connection. If nothing on your shelf has changed since the last backup, it uploads nothing. Set the switch back to MANUAL to stop it entirely.
RESTORE downloads that same file and merges it back onto your shelf. Sign-in and authorisation are handled entirely by Google on your device; the app holds a short-lived access token in memory and never stores your Google password or any other credential.
What we receive: nothing
The backup travels over an encrypted connection directly from your phone to Google's servers. It does not pass through any system of ours — we have no servers — and we receive no copy, no notification, no metadata and no statistics about it. Google's handling of what is stored in your account is governed by Google's Privacy Policy.
How to remove it and revoke access
- Delete the backup: in the Google Drive app or drive.google.com, open Settings › Manage apps, find Kasetofon, and choose Delete hidden app data.
- Revoke Kasetofon's access to your Google Account at any time at myaccount.google.com/permissions. The app then simply stops being able to back up or restore.
Limited Use
Kasetofon's use and transfer of information received from Google APIs to any other app will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
The use of information received from Google Workspace scopes will adhere to the Google User Data Policy, including the Limited Use requirements.
In plain terms: data obtained through this scope is used only to provide and improve the backup and restore feature you asked for. It is not transferred to anyone, not used for advertising, not sold, and no human at Ideja 3000 reads it — we cannot, because it never reaches us. Retention is entirely in your hands: the file stays in your Drive until you delete it or revoke access.
System backups made by Apple and Google
Separately from anything Kasetofon offers, both platforms have their own device backup systems, and Kasetofon's files are eligible for them like those of most apps.
On iPhone, if you use iCloud Backup or an encrypted computer backup, your recordings and settings are included in that backup. On Android, if you have Google's backup or device-to-device transfer switched on, your settings and — capacity permitting — your recordings can be copied to your Google account or to your new phone.
These backups are made by Apple and Google under your account and your device settings, not by us, and we cannot see them. You control them in iOS Settings › [your name] › iCloud and in Android Settings › Google › Backup.
Sharing a recording yourself
Every recorded tape has a share action that hands the WAV to your system share sheet, so you can send it by message, mail, AirDrop, or into any other app or cloud service you choose. On iPhone, Kasetofon's recordings are also exposed to the Files app — and, because file sharing is enabled, to a computer you connect the phone to — so you can copy, move or delete them directly.
Once you send a recording somewhere, this policy no longer governs that copy: the receiving app or service does, under its own terms.
Purchases
Kasetofon offers one optional in-app purchase, the Studio Pack. On iPhone it is processed entirely by Apple through the App Store; on Android, entirely by Google through Google Play. We never see or receive your payment details, card number, billing address, or your Apple or Google account credentials.
The app asks the store whether your account owns the Studio Pack so it knows whether to unlock the extra features, and records that yes-or-no answer on the device. The stores give us only their standard sales and payout reporting, which does not identify you. Their handling of purchase data is governed by Apple's Privacy Policy and Google's Privacy Policy.
Third-party components
The iPhone app contains no third-party code at all — no frameworks, no packages, no SDKs beyond what Apple ships in iOS itself.
The Android app includes three Google and AndroidX components, each doing one job: Google Play Billing (the Studio Pack purchase), Google Play services authorisation (the Google sign-in for the Drive backup in section 07), and AndroidX WorkManager (scheduling the optional daily backup). Google Play Billing also bundles a Google diagnostics component that may report its own operational data to Google; that is Google's telemetry about its own library, we do not receive it, and it carries none of your recordings or settings.
There is no analytics SDK, no crash-reporting SDK, no advertising SDK and no attribution SDK in either app. We verified this against the full dependency list of the shipped Android build, not merely by intent.
Tracking and advertising
Kasetofon does not track you across apps or websites, shows no advertising, contains no advertising or attribution SDK, does not read the iOS Advertising Identifier (IDFA) or the Android Advertising ID, and shares nothing with data brokers. On iPhone it will never show the App Tracking Transparency prompt, because there is nothing to ask about.
Store declarations
Apple required-reason APIs. Apple asks apps to declare why they use certain system APIs, even when no data leaves the device. Kasetofon declares the following in its bundled privacy manifest, and uses each solely for the purpose shown:
| System capability | Why Kasetofon uses it |
|---|---|
| App preference storage | Saving your own settings, your tape shelf and your Studio Pack status for the app itself |
| File metadata | Reading the size of a finished take to show it on the shelf, and recovering a recording after an unexpected shutdown |
| Available disk space | Warning you before a recording would run out of room, stopping safely if it does, and showing the free space and maximum take length in Set Up |
| System uptime | Timing the animation inside the app — the turning reels and the VU needle — from a clock that does not jump |
None of these are used to identify you or your device, and none of the resulting information is transmitted anywhere. The iPhone app's App Store privacy declaration is “Data Not Collected”.
Google Play Data safety. The Android app's Data safety entry reflects the same position: we collect nothing. Where the app can place your audio files in your own Google Drive at your request (section 07), that is disclosed there too, together with the deletion route described above.
Children
Kasetofon is safe for all ages in the sense that matters here: it collects no personal information from anyone, including children under 13 (or the equivalent minimum age in your country). We do not knowingly collect children's data because we do not collect anyone's data.
Your rights, and how to delete everything
Privacy laws such as the GDPR (Europe), the UK GDPR, Serbia's Law on Personal Data Protection, and the CCPA/CPRA (California) give you rights to access, correct, delete or port personal data a company holds about you, and to opt out of its sale. We hold no personal data about you, so there is nothing for us to produce, correct, delete or sell. We do not sell or share personal information as those terms are defined under the CCPA/CPRA, and never have.
What matters in practice is removing your own recordings, and that is entirely in your hands. To remove everything, do each of these that applies to you:
- Inside the app — erase individual tapes from the tape shelf.
- On the device — uninstall Kasetofon, which removes its private recordings and settings from that phone.
- iCloud (iPhone) — delete the “Kasetofon” folder in iCloud Drive through the Files app or iCloud.com.
- Music folder / sync folder (Android) — delete the copied WAV files where they live; they are not removed by erasing a tape or by uninstalling.
- Google Drive backup (Android) — Drive › Settings › Manage apps › Kasetofon › Delete hidden app data, and revoke access at myaccount.google.com/permissions.
- Backup files you exported — delete the
.zipwherever you saved it. - System backups — manage through iCloud Backup or Android's Google backup settings.
Data security
Your recordings live on your device, so their security rests first on your device's own protections — your passcode or PIN, Face ID, Touch ID or fingerprint, and the operating system's file encryption. We recommend keeping a device lock enabled.
Where the app transfers a copy at your request, it does so over encrypted connections directly between your device and Apple or Google, using credentials issued and held by the operating system. The app stores no password of yours; the Google access token it uses for a backup is short-lived and kept only in memory. Copies you place in a public folder, a shared folder or another app are protected by whatever protects that destination.
We hold no user data, so there is no database of ours to breach. If that ever changed, this page would say so before it happened.
Changes to this policy
If the apps ever change in a way that affects this policy, we will update this page and change the “Last updated” date above. If a future version were to use your data for any purpose beyond the ones described here — which is not planned — we would say so on this page clearly, and ask for your consent before that use began, where consent is required.
About this page
For completeness: this page loads its three typefaces from Google Fonts, so opening it sends your IP address and browser details to Google, as with most websites that use web fonts. The apps themselves do not load anything from the web. The email address below is assembled by a small script so that address-harvesting robots do not find it in the page source.