Effective date: 14 November 2026
This Privacy Policy explains how the mobile app Memoir: Diary & Journal with Lock (“Memoir”, “the app”) handles your information. The app is published by Tech Dunya (“we”, “us”).
The short version: your diary stays on your device. We do not have a server, we do not ask you to create an account, and we cannot read your entries. The app shows ads from Google AdMob, and Google collects some device data to do that.
1. Information stored on your device
Everything you create in Memoir is saved only in the app’s private storage on your own phone or tablet. We do not receive, upload or have any access to it. This includes:
- Diary entries: titles, text, dates, moods and tags
- Photos you add to entries
- Voice notes you record
- Templates you create
- Your settings, such as theme, reminder time and your name if you enter one
- Your app-lock PIN, which is stored only as a scrambled (salted and hashed) value, never as the PIN itself
2. Information we collect
We do not collect any personal information ourselves. Memoir has no user accounts, no cloud sync and no analytics of our own.
3. Advertising (Google AdMob)
Memoir is free and shows ads provided by Google AdMob. To deliver and measure ads, and to prevent fraud, Google’s advertising software inside the app may automatically collect and process:
- Your device’s advertising ID
- IP address, which can indicate your approximate location (city or region)
- Device and app information, such as device model, operating system version, language and app version
- How you interact with ads, such as which ads were shown and tapped
- Diagnostic information, such as crash and performance data from the ad software
This data goes directly to Google. It is not linked by us to your diary, and the content of your entries, photos and voice notes is never shared with Google or any advertiser.
Google may use this data to show personalised ads, depending on your choices and where you live. You can learn more here:
Your advertising choices
- Consent: if you are in the European Economic Area, the United Kingdom, Switzerland or another region where it is required, Memoir asks for your consent before any ads are requested. You can change your choice at any time in the app under Settings > Ads > Ad privacy choices.
- Device settings: on Android you can reset or delete your advertising ID, or turn off ad personalisation, in Settings > Google > Ads (the exact path varies by device).
- Google account: you can manage ad personalisation at adssettings.google.com.
4. Permissions the app uses
- Microphone: only when you tap Record to add a voice note. Recordings are saved on your device.
- Voice typing (Dictate): when you tap Dictate, the app opens the speech recognition service installed on your device (on most phones this is provided by Google). Your speech is processed by that service under its own privacy policy, and only the resulting text is returned to Memoir.
- Photos and camera: Memoir uses the Android photo picker and your camera app, so it only receives the specific photos you choose or take. It does not have access to the rest of your gallery.
- Notifications: to show the daily writing reminder, if you turn it on.
- Fingerprint or face unlock: handled entirely by Android. Memoir only learns whether the check succeeded and never receives your biometric data.
- Internet access: used only to load ads and the ad consent form.
- Run at startup: used only to restore your daily reminder after the device restarts.
5. Backups and exports
Memoir can create backup files (.zip) and exports (PDF or text), either when you ask or automatically on the schedule you choose. These files are saved only to the location you select, for example a folder on your device or your own cloud storage. We never receive them.
Backup and export files are not password protected. Anyone who can open the file can read its contents, so please store and share them carefully. If you save a file to a cloud service such as Google Drive, that service’s privacy policy applies to it.
Android’s automatic cloud backup is switched off for Memoir, so your diary is not copied to your Google account unless you save a backup there yourself.
6. Sharing of information
We do not sell, rent or share your personal information. The only data that leaves your device through the app is:
- the advertising data collected by Google AdMob described in section 3;
- speech sent to your device’s speech recognition service when you use Dictate; and
- anything you choose to share, export or back up yourself.
7. Keeping and deleting your data
Your diary stays on your device until you delete it. You are in full control:
- Delete individual entries in the app. Deleted entries stay in the Trash for 30 days and are then removed permanently, or you can empty the Trash at once.
- Delete everything by clearing the app’s storage in Android settings or by uninstalling the app.
- Backup and export files you saved elsewhere are not removed when you uninstall. Delete them yourself if you no longer want them.
Because we do not hold any of your data, there is nothing for us to delete on our side. For data held by Google for advertising, use the controls in section 3.
8. Security
Your entries are kept in the app’s private storage, which other apps cannot read on a standard Android device. You can add a PIN and fingerprint or face unlock, and block screenshots, in Settings. No method of storage is completely secure, and we cannot recover a forgotten PIN or lost data, so we recommend keeping a backup.
9. Children
Memoir is intended for a general audience and is not directed at children under 13 (or the minimum age required in your country). We do not knowingly collect personal information from children. If you believe a child has provided personal information through the app, please contact us.
10. Your rights
Depending on where you live, for example under the GDPR in Europe or the CCPA/CPRA in California, you may have rights to access, correct, delete or restrict the use of your personal data, to withdraw consent, and to opt out of the “sale” or “sharing” of personal information for advertising. Since your diary never leaves your device, you can exercise these rights over it directly in the app. For advertising data, use the consent and opt-out controls in section 3, or contact us and we will help where we can.
11. Changes to this policy
We may update this Privacy Policy when the app changes or the law requires it. The new version will be posted on this page with a new effective date. Continuing to use the app after a change means you accept the updated policy.
12. Contact us
If you have questions about this Privacy Policy or the app, email us at support.app@speedycalculator.com.