Daybook

The short version

Your diary is stored on your phone and nowhere else. Daybook has no accounts, no ads, no analytics and no servers. CartlyDev has no way to read what you write, because none of it ever reaches us.

What is stored on your device

• Your pages: title, text, mood, tags, the prompt you answered, and the date.
• Photos you attach — copied into Daybook's private storage so they survive changes to your gallery.
• Voice notes you record, saved as audio files in that same private storage.
• Your preferences: name, theme, moods, hashtags, text size and reminder time.
• Your passcode, saved only as a salted one-way hash. The digits themselves are never stored.

All of this lives in Daybook's private app storage, which other apps cannot read on a normal device.

What leaves your device

Nothing. Daybook contains no advertising, no analytics, no crash reporting and no tracking of any kind. It makes no network requests of its own, so your entries, photos, voice notes and moods never leave this phone. Daybook also does not use Android's automatic cloud backup — your diary is never copied to Google Drive or any other backup service.

The one exception is entirely under your control: when you export your journal, the PDF is created on your device and goes only to the app you pick from the share sheet. Nothing is sent automatically.

Permissions and why

• Microphone — only while you are actively recording a voice note.
• Notifications — only to show the daily reminder, if you turn it on.
• Biometrics — to unlock the app. Android handles the check; Daybook never sees your fingerprint.
• Photos — you pick individual images through the Android photo picker. Daybook has no access to the rest of your library.

Android's own scheduling library adds a few background permissions on Daybook's behalf — network state, wake lock, and start-on-boot. They exist so the daily reminder can be scheduled reliably and survive a restart. Daybook uses none of them to send or receive data.

What the app lock does and does not do

The passcode and fingerprint lock stop someone casually opening Daybook on your unlocked phone. They are a privacy screen, not encryption.

Deleting your data

Deleting a page removes it, along with any photo or voice note attached to it. Clearing the app's data, or uninstalling Daybook, removes everything permanently. Because there is no cloud copy, this cannot be undone — export first if you want to keep anything.

Children

Daybook is not directed at children under 13, and CartlyDev does not knowingly collect personal information from them.

Changes

If the way Daybook handles data changes, this policy will be updated and the date at the top will change with it. The same wording is shown inside the app under Settings.

Contact

Questions about privacy, or about anything above, are welcome at ahmaaaad1113@gmail.com.

Daybook is made by CartlyDev. By using the app you agree to what follows. It is short on purpose.

Your writing is yours

Everything you put in Daybook belongs to you. CartlyDev claims no ownership of it, no licence to use it, and has no way to read it — your pages never leave your device.

Keeping your own copies

Daybook stores your diary only on this phone. You are responsible for keeping backups of anything you would be upset to lose.

Fair use

Please don't:

• Use Daybook for anything unlawful.
• Try to decompile, modify or resell the app.
• Attempt to break the app lock on a device that isn't yours.

No warranty

Daybook is provided as it is, without warranties of any kind. We work to keep it stable and safe, but we cannot promise it will always be available, error-free, or compatible with every device and Android version.

Limitation of liability

To the extent the law allows, CartlyDev is not liable for lost entries, lost photos or voice notes, or any indirect or consequential loss arising from using Daybook. This matters most around backups — please export regularly.

Changes to the app and these terms

Features may be added, changed or removed as Daybook develops, and these terms may be updated to match. The date at the top shows the most recent version, and continuing to use the app means accepting it.

Contact

Anything unclear here, or a problem with the app, can go to cartlydev@gmail.com.